GENERAL DESCRIPTION The SGM236 series low-power, low-dropout, CMOS linear voltage regulators operate from a 1.6V to 5.5V input voltage and deliver up to 3mA output current. They are the perfect choice for low voltage, low power applications. A low ground current makes this part attractive for battery operated power systems. The SGM236 series also offer low dropout voltage to prolong battery life in portable electronics. Systems requiring a quiet voltage source, such as RF applications, will benefit from the SGM236 series low output noise and high PSRR. Other features include a 1nA logic-controlled shutdown mode, short current limit and thermal shutdown protection. The SGM236 has auto-discharge function to quickly discharge in the disable status. The SGM236 is available in Green UTDFN-1 1-4L, SOT-23-5 and SC7-5 packages. It operates over an ambient temperature range of -4 to +85. FEATURES Low Dropout Voltage Thermal Overload Protection Built-In Fold Back Protection Circuit 2μA Low Supply Current 1nA Logic-Controlled Shutdown 1.6V to 5.5V Input Voltage Range Fixed Outputs of.8v,.9v, 1.V, 1.5V, 1.1V, 1.2V, 1.3V, 1.35V, 1.5V, 1.8V, 1.85V, 2.1V, 2.2V, 2.3V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.V, 3.1V, 3.3V, 3.6V, 4.2V, 4.4V and 5.V Adjustable Output from.8v to 5.V Short Auto-Discharge Function 3mA Output Current High Output Voltage Accuracy Quick Start-Up Time -4 to +85 Operating Temperature Range Available in Green UTDFN-1 1-4L, SOT-23-5 and SC7-5 Packages APPLICATIONS Cellular Telephones Cordless Telephones PCMCIA Cards Modems MP3 Player Hand-Held Instruments Palmtop Computers Electronic Planners Portable/Battery-Powered Equipment NOVEMBER 217 REV. B. 1
PACKAGE/ORDERING INFORMATION PACKAGE ORDERING PACKAGE PACKING MODEL (V) DESCRIPTION NUMBER MARKING OPTION SGM236-.8.8 UTDFN-1 1-4L SGM236-.8YUDH4G/TR SF Tape and Reel, 1 SGM236-.9.9 UTDFN-1 1-4L SGM236-.9YUDH4G/TR NE Tape and Reel, 1 SGM236-1. 1. UTDFN-1 1-4L SGM236-1.YUDH4G/TR J3 Tape and Reel, 1 SGM236-1.5 1.5 UTDFN-1 1-4L SGM236-1.5YUDH4G/TR NF Tape and Reel, 1 SGM236-1.1 1.1 UTDFN-1 1-4L SGM236-1.1YUDH4G/TR O Tape and Reel, 1 SGM236-1.2 1.2 UTDFN-1 1-4L SGM236-1.2YUDH4G/TR HE Tape and Reel, 1 SGM236-1.3 1.3 UTDFN-1 1-4L SGM236-1.3YUDH4G/TR O1 Tape and Reel, 1 SGM236-1.35 1.35 UTDFN-1 1-4L SGM236-1.35YUDH4G/TR Z7 Tape and Reel, 1 SGM236-1.5 1.5 UTDFN-1 1-4L SGM236-1.5YUDH4G/TR HF Tape and Reel, 1 SGM236-1.8 1.8 UTDFN-1 1-4L SGM236-1.8YUDH4G/TR I Tape and Reel, 1 SGM236-1.85 1.85 UTDFN-1 1-4L SGM236-1.85YUDH4G/TR O2 Tape and Reel, 1 SGM236-2.1 2.1 UTDFN-1 1-4L SGM236-2.1YUDH4G/TR O3 Tape and Reel, 1 SGM236-2.2 2.2 UTDFN-1 1-4L SGM236-2.2YUDH4G/TR O4 Tape and Reel, 1 SGM236-2.3 2.3 UTDFN-1 1-4L SGM236-2.3YUDH4G/TR SA Tape and Reel, 1 SGM236-2.5 2.5 UTDFN-1 1-4L SGM236-2.5YUDH4G/TR O5 Tape and Reel, 1 SGM236-2.6 2.6 UTDFN-1 1-4L SGM236-2.6YUDH4G/TR N6 Tape and Reel, 1 SGM236-2.7 2.7 UTDFN-1 1-4L SGM236-2.7YUDH4G/TR O6 Tape and Reel, 1 SGM236-2.8 2.8 UTDFN-1 1-4L SGM236-2.8YUDH4G/TR I1 Tape and Reel, 1 SGM236-2.85 2.85 UTDFN-1 1-4L SGM236-2.85YUDH4G/TR O7 Tape and Reel, 1 SGM236-2.9 2.9 UTDFN-1 1-4L SGM236-2.9YUDH4G/TR O8 Tape and Reel, 1 SGM236-3. 3. UTDFN-1 1-4L SGM236-3.YUDH4G/TR I2 Tape and Reel, 1 SGM236-3.3 3.3 UTDFN-1 1-4L SGM236-3.3YUDH4G/TR I3 Tape and Reel, 1 SGM236-.8.8 SOT-23-5 SGM236-.8YN5G/TR SS7XX Tape and Reel, 3 SGM236-.9.9 SOT-23-5 SGM236-.9YN5G/TR SPXX Tape and Reel, 3 SGM236-1. 1. SOT-23-5 SGM236-1.YN5G/TR SP1XX Tape and Reel, 3 SGM236-1.5 1.5 SOT-23-5 SGM236-1.5YN5G/TR SP2XX Tape and Reel, 3 SGM236-1.1 1.1 SOT-23-5 SGM236-1.1YN5G/TR SP3XX Tape and Reel, 3 SGM236-1.2 1.2 SOT-23-5 SGM236-1.2YN5G/TR SP4XX Tape and Reel, 3 SGM236-1.3 1.3 SOT-23-5 SGM236-1.3YN5G/TR SP5XX Tape and Reel, 3 SGM236-1.5 1.5 SOT-23-5 SGM236-1.5YN5G/TR SP6XX Tape and Reel, 3 SGM236-1.8 1.8 SOT-23-5 SGM236-1.8YN5G/TR SP7XX Tape and Reel, 3 SGM236-1.85 1.85 SOT-23-5 SGM236-1.85YN5G/TR SP8XX Tape and Reel, 3 SGM236-2.1 2.1 SOT-23-5 SGM236-2.1YN5G/TR SP9XX Tape and Reel, 3 SGM236-2.2 2.2 SOT-23-5 SGM236-2.2YN5G/TR SPAXX Tape and Reel, 3 SGM236-2.3 2.3 SOT-23-5 SGM236-2.3YN5G/TR SS9XX Tape and Reel, 3 SGM236-2.5 2.5 SOT-23-5 SGM236-2.5YN5G/TR SPBXX Tape and Reel, 3 SGM236-2.6 2.6 SOT-23-5 SGM236-2.6YN5G/TR SN5XX Tape and Reel, 3 SGM236-2.7 2.7 SOT-23-5 SGM236-2.7YN5G/TR SPCXX Tape and Reel, 3 SGM236-2.8 2.8 SOT-23-5 SGM236-2.8YN5G/TR SPDXX Tape and Reel, 3 SGM236-2.85 2.85 SOT-23-5 SGM236-2.85YN5G/TR SPEXX Tape and Reel, 3 SGM236-2.9 2.9 SOT-23-5 SGM236-2.9YN5G/TR SPFXX Tape and Reel, 3 NOVEMBER 217 2
PACKAGE/ORDERING INFORMATION (continued) PACKAGE ORDERING PACKAGE PACKING MODEL (V) DESCRIPTION NUMBER MARKING OPTION SGM236-3. 3. SOT-23-5 SGM236-3.YN5G/TR SQXX Tape and Reel, 3 SGM236-3.1 3.1 SOT-23-5 SGM236-3.1YN5G/TR SQ1XX Tape and Reel, 3 SGM236-3.3 3.3 SOT-23-5 SGM236-3.3YN5G/TR SQ2XX Tape and Reel, 3 SGM236-3.6 3.6 SOT-23-5 SGM236-3.6YN5G/TR SQ3XX Tape and Reel, 3 SGM236-4.2 4.2 SOT-23-5 SGM236-4.2YN5G/TR SQ4XX Tape and Reel, 3 SGM236-4.4 4.4 SOT-23-5 SGM236-4.4YN5G/TR SQ5XX Tape and Reel, 3 SGM236-5. 5. SOT-23-5 SGM236-5.YN5G/TR SQ6XX Tape and Reel, 3 SGM236-ADJ Adjustable SOT-23-5 SGM236-ADJYN5G/TR SQ7XX Tape and Reel, 3 SGM236-.8.8 SC7-5 SGM236-.8YC5G/TR SSBXX Tape and Reel, 3 SGM236-.9.9 SC7-5 SGM236-.9YC5G/TR SQ8XX Tape and Reel, 3 SGM236-1. 1. SC7-5 SGM236-1.YC5G/TR SQ9XX Tape and Reel, 3 SGM236-1.5 1.5 SC7-5 SGM236-1.5YC5G/TR SQAXX Tape and Reel, 3 SGM236-1.1 1.1 SC7-5 SGM236-1.1YC5G/TR SQBXX Tape and Reel, 3 SGM236-1.2 1.2 SC7-5 SGM236-1.2YC5G/TR SQCXX Tape and Reel, 3 SGM236-1.3 1.3 SC7-5 SGM236-1.3YC5G/TR SQDXX Tape and Reel, 3 SGM236-1.5 1.5 SC7-5 SGM236-1.5YC5G/TR SQEXX Tape and Reel, 3 SGM236-1.8 1.8 SC7-5 SGM236-1.8YC5G/TR SQFXX Tape and Reel, 3 SGM236-1.85 1.85 SC7-5 SGM236-1.85YC5G/TR SRXX Tape and Reel, 3 SGM236-2.1 2.1 SC7-5 SGM236-2.1YC5G/TR SR1XX Tape and Reel, 3 SGM236-2.2 2.2 SC7-5 SGM236-2.2YC5G/TR SR2XX Tape and Reel, 3 SGM236-2.3 2.3 SC7-5 SGM236-2.3YC5G/TR SS8XX Tape and Reel, 3 SGM236-2.5 2.5 SC7-5 SGM236-2.5YC5G/TR SR3XX Tape and Reel, 3 SGM236-2.6 2.6 SC7-5 SGM236-2.6YC5G/TR SN4XX Tape and Reel, 3 SGM236-2.7 2.7 SC7-5 SGM236-2.7YC5G/TR SR4XX Tape and Reel, 3 SGM236-2.8 2.8 SC7-5 SGM236-2.8YC5G/TR SR5XX Tape and Reel, 3 SGM236-2.85 2.85 SC7-5 SGM236-2.85YC5G/TR SR6XX Tape and Reel, 3 SGM236-2.9 2.9 SC7-5 SGM236-2.9YC5G/TR SR7XX Tape and Reel, 3 SGM236-3. 3. SC7-5 SGM236-3.YC5G/TR SR8XX Tape and Reel, 3 SGM236-3.1 3.1 SC7-5 SGM236-3.1YC5G/TR SR9XX Tape and Reel, 3 SGM236-3.3 3.3 SC7-5 SGM236-3.3YC5G/TR SRAXX Tape and Reel, 3 SGM236-3.6 3.6 SC7-5 SGM236-3.6YC5G/TR SRBXX Tape and Reel, 3 SGM236-4.2 4.2 SC7-5 SGM236-4.2YC5G/TR SRCXX Tape and Reel, 3 SGM236-4.4 4.4 SC7-5 SGM236-4.4YC5G/TR SRDXX Tape and Reel, 3 SGM236-5. 5. SC7-5 SGM236-5.YC5G/TR SREXX Tape and Reel, 3 SGM236-ADJ Adjustable SC7-5 SGM236-ADJYC5G/TR SRFXX Tape and Reel, 3 NOTE: 1. XX = Date Code. Green (RoHS & HSF): defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If you have additional comments or questions, please contact your SGMICRO representative directly. MARKING INFORMATION SYY X X Date code - Month ("A" = Jan. "B" = Feb. "L" = Dec.) Date code - Year ("A" = 21, "B" = 211 ) Chip I.D. For example: SRFFA (215, January) NOVEMBER 217 3
ABSOLUTE MAXIMUM RATINGS IN to GND... -.3V to 6V Output Short-Circuit Duration... Infinite EN to GND... -.3V to 6V, BP/FB to GND... -.3V to (V IN +.3V) Power Dissipation, P D @ T A = +25 UTDFN-1 1-4L... 4mW SOT-23-5... 39mW SC7-5... 34mW Package Thermal Resistance UTDFN-1 1-4L, θ JA... 28 /W SOT-23-5, θ JA... 285 /W SC7-5, θ JA... 33 /W Junction Temperature... +15 Storage Temperature Range... -65 to +15 Lead Temperature (Soldering, 1s)... +26 ESD Susceptibility HBM... 4V MM... 4V RECOMMENDED OPERATING CONDITIONS Operating Voltage Range... 1.6V to 5.5V Operating Temperature Range... -4 to +85 OVERSTRESS CAUTION Stresses beyond those listed may cause permanent damage to the device. Functional operation of the device at these or any other conditions beyond those indicated in the operational section of the specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. ESD SENSITIVITY CAUTION This integrated circuit can be damaged by ESD if you don t pay attention to ESD protection. SGMICRO recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. DISCLAIMER reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time. NOVEMBER 217 4
PIN CONFIGURATIONS (TOP VIEW) (TOP VIEW) IN EN 4 3 IN 1 5 GND 2 1 2 EN 3 4 BP/FB GND UTDFN-1 1-4L SOT-23-5/SC7-5 PIN DESCRIPTION PIN UTDFN-1 1-4L SOT-23-5/ SC7-5 NAME FUNCTION 1 5 Regulator Output. 2 2 GND Ground. 3 3 EN 4 1 IN BP 4 FB Exposed Pad Enable Pin. This pin has an internal pull-down resistor. A logic low reduces the supply current to less than 1μA. Connect to IN for normal operation. Regulator Input. Supply voltage can range from 1.6V to 5.5V. Bypass with a capacitor to GND. Reference-Noise Bypass Pin (fixed voltage version only). Bypass with a low-leakage. ceramic capacitor for reduced noise at the output. The capacitor is recommended to be placed very close to the pin for high PSRR. Feedback Pin (adjustable voltage version only). This is used to set the output voltage of the device. The exposed pad should be connected to a large ground plane to maximize thermal performance. NOVEMBER 217 5
ELECTRICAL CHARACTERISTICS (V IN = (NOMINAL) +.5V or 2.5V, whichever is greater, Full = -4 to +85, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS TEMP MIN TYP MAX UNITS Input Voltage V IN +25 1.6 5.5 V Output Voltage Accuracy I =.1mA +25-2.5 +2.5 % Feedback Voltage V FB I =.1mA, SGM236-ADJ +25.78.8.82 V Maximum Output Current (1) +25 3 ma Current Limit I LIM +25 36 56 ma Supply Pin Current I Q No Load, V EN = V IN +25 2 26 µa Dropout Voltage (2) V DROP I = 3mA Line Regulation Load Regulation V V V IN Δ V IN = 1.6V or ( +.5V) to 5.5V, I = 1mA =.8V +25 94 12 =.9V +25 84 11 1.V < 1.1V +25 78 1 1.1V < 1.2V +25 68 9 1.2V < 1.5V +25 59 8 1.5V < 1.8V +25 42 55 1.8V < 2.1V +25 32 42 2.1V < 2.5V +25 26 34 2.5V < 3.V +25 215 28 3.V < 3.6V +25 19 25 3.6V 5.V +25 165 21 1.8V 3.3V +25.1.6 < 1.8V or > 3.3V +25.1.1 I =.1mA to 3mA +25 12 4 I =.1mA to 3mA, SGM236-ADJ +25.5 1 Short Current Limit I SHORT = V +25 2 ma Power Supply Rejection Ratio Output Voltage Noise Output Voltage Temperature Coefficient (3) SHUTDOWN EN Input Threshold EN Input Bias Current PSRR e n V T V A C BP = µf, I = 3mA, C =, V IN = + 1V, V RIPPLE =.2V P-P C BP =., I = 3mA, C =, V IN = + 1V, V RIPPLE =.2V P-P C BP = µf, f = 1Hz to 1kHz, C = 1µF, = 1.8V C BP =.1µF, f = 1Hz to 1kHz, C = 1µF, = 1.8V f = 217Hz +25 8 f = 1kHz +25 75 f = 217Hz +25 82 f = 1kHz +25 7 I = ma +25 1 I = 3mA +25 2 I = ma +25 3 I = 3mA +25 75 mv %/V mv db µv RMS I =.1mA Full 3 ppm/ V IH Full 1.5 V IN = 1.6V to 5.5V V IL Full.4 I BH V EN = 5.5V Full.8 2 I BL V EN = V Full.1 1 Shutdown Supply Current I SHDN V EN = V Full.1 1 µa Start-Up Time (4) t STR C =, No Load +25 3 µs R ON of Discharge MOSFET V IN = 4.V, V EN = V +25 5 Ω V µa NOVEMBER 217 6
ELECTRICAL CHARACTERISTICS (continued) (V IN = (NOMINAL) +.5V or 2.5V, whichever is greater, Full = -4 to +85, unless otherwise noted.) PARAMETER SYMBOL CONDITIONS TEMP MIN TYP MAX UNITS THERMAL PROTECTION Thermal Shutdown Temperature Thermal Shutdown Hysteresis T SHDN 14 ΔT SHDN 15 NOTES: 1. Maximum output current is affected by the PCB layout, size of metal trace, the thermal conduction path between metal layers, ambient temperature and the other environment factors of system. Attention should be paid to the dropout voltage when V IN < + V DROP. 2. The dropout voltage is defined as V IN -, when is 1mV below the value of for V IN = +.5V or 2.5V. 3. Output voltage temperature coefficient is defined as the worst-case voltage change divided by the total temperature range. 4. Time needed for to reach 9% of final value. BLOCK DIAGRAM IN V REF Current Limit EN GND NOVEMBER 217 7
TYPICAL APPLICATION CIRCUITS INPUT 1.6V to 5.5V 1 IN 5 PUT INPUT 1.6V to 5.5V 4 IN 1 PUT C IN SGM236 C C IN SGM236 C ON OFF 3 EN GND 2 BP 4 C BP. ON OFF 3 EN GND 2 SOT-23-5/SC7-5 UTDFN-1 1-4L INPUT 1.6V to 5.5V ON C IN OFF 1 3 IN EN GND SGM 236-ADJ 2 FB 5 4 R 1 R 2 PUT C SOT-23-5/SC7-5 NOTE: Choose R 2 = 16kΩ to maintain a 5μA minimum load. Calculate the value for R 1 using the following equation: V =.8V R1 R2-1 NOVEMBER 217 8
TYPICAL PERFORMANCE CHARACTERISTICS V EN = V IN, C IN =, C =, C BP = μf, T A = +25, unless otherwise noted. Turn On Speed with EN Pin Turn On Speed with EN Pin V EN 2V/div 1V/div V EN 2V/div 2V/div V IN = 2.8V, I = ma, = 1.8V V IN = 4.3V, I = ma, = 3.3V Time (2μs/div) Time (2μs/div) Turn Off Speed with EN Pin Turn Off Speed with EN Pin V EN V EN V IN = 2.8V, I = ma, = 1.8V 2V/div 1V/div V IN = 4.3V, I = ma, = 3.3V 2V/div 2V/div Time (4μs/div) Time (4μs/div) Line Transient Response Line Transient Response V IN = 1.8V = 3.3V V IN = 2.8V to 3.8V, I = 3mA 1V/div 5mV/div V IN V IN = 4.3V to 5.3V, I = 3mA 1V/div 5mV/div Time (4μs/div) Time (4μs/div) NOVEMBER 217 9
TYPICAL PERFORMANCE CHARACTERISTICS (continued) V EN = V IN, C IN =, C =, C BP = μf, T A = +25, unless otherwise noted. Load Transient Response V IN = 2.8V Load Transient Response V IN = 4.3V I = 1.8V = 3.3V I = 1mA to 3mA 1mA/div 2mV/div I I = 1mA to 3mA 1mA/div 2mV/div Time (1μs/div) Time (1μs/div) Load Transient Response V IN = 2.8V Load Transient Response V IN = 4.3V I = 1.8V = 3.3V I = 5mA to 1mA 5mA/div 5mV/div I I = 5mA to 1mA 5mA/div 5mV/div Time (1μs/div) Time (1μs/div) 1 Pow er Supply Rejection Ratio vs. Frequency 1 Pow er Supply Rejection Ratio vs. Frequency 8 C BP = μf 8 C BP = μf PSRR (db) 6 C BP =. 4 V IN = 2.8V, 2 I = 3mA, = 1.8V.1.1 1 1 1 1 Frequency (khz) PSRR (db) 6 C BP =. 4 V IN = 4.3V, 2 I = 3mA, = 3.3V.1.1 1 1 1 1 Frequency (khz) NOVEMBER 217 1
TYPICAL PERFORMANCE CHARACTERISTICS (continued) V EN = V IN, C IN =, C =, C BP = μf, T A = +25, unless otherwise noted. Dropout Voltage (mv) Dropout Voltage vs. Temperature 5 = 1.8V 4 3 I = 3mA 2 1 I = 1mA -4-15 1 35 6 85 Temperature ( ) Dropout Voltage (mv) Dropout Voltage vs. Temperature 25 = 3.3V 2 I = 3mA 15 1 5 I = 1mA -4-15 1 35 6 85 Temperature ( ) 1.89 Output Voltage vs. Temperature 3.36 Output Voltage vs. Temperature Output Voltage (V) 1.85 1.81 1.797 V IN = 2.3V, 1.793 I =.1mA, = 1.8V 1.789-4 -15 1 35 6 85 Temperature ( ) Output Voltage (V) 3.32 3.298 3.294 V IN = 3.8V, 3.29 I =.1mA, = 3.3V 3.286-4 -15 1 35 6 85 Temperature ( ) 25 Supply Pin Current vs. Temperature 25 Supply Pin Current vs. Temperature Supply Pin Current (μa) 2 15 1 5-4 -15 1 35 6 85 Temperature ( ) V IN = 2.3V, I = ma, = 1.8V Supply Pin Current (μa) 2 15 1 5-4 -15 1 35 6 85 Temperature ( ) V IN = 3.8V I = ma, = 3.3V NOVEMBER 217 11
TYPICAL PERFORMANCE CHARACTERISTICS (continued) V EN = V IN, C IN =, C =, C BP = μf, T A = +25, unless otherwise noted. Dropout Voltage (mv) Dropout Voltage vs. Output Current 5 = 1.8V 4 3 +85 2 +25 1-4 5 1 15 2 25 3 Output Current (ma) Dropout Voltage (mv) Dropout Voltage vs. Output Current 25 = 3.3V 2 15 +85 1 +25 5-4 5 1 15 2 25 3 Output Current (ma) 2.1 Output Voltage vs. Output Current 3.5 Output Voltage vs. Output Current Output Voltage (V) 1.8 1.5 1.2.9.6.3 V IN = 2.8V Output Voltage (V) 3. 2.5 2. 1.5 1..5 V IN = 4.3V. 1 2 3 4 5 6 7 Output Current (ma). 1 2 3 4 5 6 7 Output Current (ma) Ground Pin Current (µa) 2 16 12 8 4 Ground Pin Current vs. Output Current = 1.8V Ground Pin Current (µa) 2 16 12 8 4 Ground Pin Current vs. Output Current = 3.3V 5 1 15 2 25 3 Output Current (ma) 5 1 15 2 25 3 Output Current (ma) NOVEMBER 217 12
TYPICAL PERFORMANCE CHARACTERISTICS (continued) V EN = V IN, C IN =, C =, C BP = μf, T A = +25, unless otherwise noted. 4 Output Voltage vs. Input Voltage 4 Output Voltage vs. Input Voltage Output Voltage (V) 3.2 2.4 1.6.8 I =.1mA = 1.8V 1 2 3 4 5 6 Input Voltage (V) Output Voltage (V) 3.2 2.4 1.6.8 I =.1mA = 3.3V 1 2 3 4 5 6 Input Voltage (V) 25 Supply Pin Current vs. Input Voltage 25 Supply Pin Current vs. Input Voltage Supply Pin Current (μa) 2 15 1 5 1 2 3 4 5 6 Input Voltage (V) I = ma, = 1.8V Supply Pin Current (μa) 2 15 1 5 1 2 3 4 5 6 Input Voltage (V) I = ma, = 3.3V NOVEMBER 217 13
APPLICATION NOTE When LDO is used in handheld products, attention must be paid to voltage spikes which could damage SGM236. In such applications, voltage spikes will be generated at charger interface and V BUS pin of USB interface when charger adapters and USB equipments are hot-plugged. Besides this, handheld products will be tested on the production line without battery. Test engineer will apply power from the connector pin which connects with positive pole of the battery. When external power supply is turned on suddenly, the voltage spikes will be generated at the battery connector. The voltage spikes will be very high, and it always exceeds the absolute maximum input voltage (6.V) of LDO. In order to get robust design, design engineer needs to clear up this voltage spike. Zener diode is a cheap and effective solution to eliminate such voltage spike. For example, BZM55B5V6 is a 5.6V small package Zener diode which can be used to remove voltage spikes in cell phone designs. The schematic is shown below. V CC Input BZM55B5V6 C 1 4 IN EN SGM236 GND 1 C 2 3 2 Control UTDFN-1 1-4L V CC Input BZM55B5V6 C 1 1 IN EN SGM236 GND BP 5 C 2 3 2 4. Control SOT-23-5/SC7-5 NOVEMBER 217 14
PACKAGE INFORMATION PACKAGE LINE DIMENSIONS SC7-5 D e e1.65 E1 E 1.9 b.75.4 1.3 RECOMMENDED LAND PATTERN (Unit: mm) L L1 A A1 A2 θ.2 c Symbol Dimensions In Millimeters Dimensions In Inches MIN MAX MIN MAX A.9 1.1.35.43 A1..1..4 A2.9 1..35.39 b.15.35.6.14 c.8.15.3.6 D 2. 2.2.79.87 E 1.15 1.35.45.53 E1 2.15 2.45.85.96 e.65 TYP.26 TYP e1 1.3 BSC.51 BSC L.525 REF.21 REF L1.26.46.1.18 θ 8 8 TX43.
PACKAGE INFORMATION PACKAGE LINE DIMENSIONS SOT-23-5 D 1.9 e1 E1 E 2.59.99 b e.69.95 RECOMMENDED LAND PATTERN (Unit: mm) L A A1 A2 θ.2 c Symbol Dimensions In Millimeters Dimensions In Inches MIN MAX MIN MAX A 1.5 1.25.41.49 A1..1..4 A2 1.5 1.15.41.45 b.3.5.12.2 c.1.2.4.8 D 2.82 3.2.111.119 E 1.5 1.7.59.67 E1 2.65 2.95.14.116 e.95 BSC.37 BSC e1 1.9 BSC.75 BSC L.3.6.12.24 θ 8 8 TX33.
PACKAGE INFORMATION PACKAGE LINE DIMENSIONS UTDFN-1 1-4L D e D1 E1 E f TOP VIEW L b BOTTOM VIEW 3-C.18.25.48.4 A 1.3.2 A1 A2 SIDE VIEW.47.22.65 RECOMMENDED LAND PATTERN (Unit: mm) 45.48 Symbol Dimensions In Millimeters MIN MOD MAX A.5.55.6 A1..5 A2.152 REF D.95 1. 1.5 D1.45.5.55 E.95 1. 1.5 E1.45.5.55 b.175.225.275 e.625 BSC f.195 REF L.2.25.3 TX66.
PACKAGE INFORMATION TAPE AND REEL INFORMATION REEL DIMENSIONS TAPE DIMENSIONS P2 P W Q1 Q2 Q1 Q2 Q1 Q2 B Q3 Q4 Q3 Q4 Q3 Q4 Reel Diameter P1 A K Reel Width (W1) DIRECTION OF FEED NOTE: The picture is only for reference. Please make the object as the standard. KEY PARAMETER LIST OF TAPE AND REEL Package Type Reel Diameter Reel Width W1 A B K P P1 P2 W Pin1 Quadrant SC7-5 7 9.5 2.25 2.55 1.2 4. 4. 2. 8. Q3 SOT-23-5 7 9.5 3.2 3.2 1.4 4. 4. 2. 8. Q3 UTDFN-1 1-4L 7 9. 1.2 1.2.6 4. 2. 2. 8. Q1 DD1 TX1.
PACKAGE INFORMATION CARTON BOX DIMENSIONS NOTE: The picture is only for reference. Please make the object as the standard. KEY PARAMETER LIST OF CARTON BOX Reel Type Length Width Height Pizza/Carton 7 (Option) 368 227 224 8 7 442 41 224 18 DD2 TX2.