SGM mA, Low Power, Low Dropout, RF Linear Regulators

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1 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

2 PACKAGE/ORDERING INFORMATION PACKAGE ORDERING PACKAGE PACKING MODEL (V) DESCRIPTION NUMBER MARKING OPTION SGM UTDFN-1 1-4L SGM236-.8YUDH4G/TR SF Tape and Reel, 1 SGM UTDFN-1 1-4L SGM236-.9YUDH4G/TR NE Tape and Reel, 1 SGM UTDFN-1 1-4L SGM236-1.YUDH4G/TR J3 Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR NF Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR O Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR HE Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR O1 Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR Z7 Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR HF Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR I Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR O2 Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR O3 Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR O4 Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR SA Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR O5 Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR N6 Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR O6 Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR I1 Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR O7 Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR O8 Tape and Reel, 1 SGM UTDFN-1 1-4L SGM236-3.YUDH4G/TR I2 Tape and Reel, 1 SGM UTDFN-1 1-4L SGM YUDH4G/TR I3 Tape and Reel, 1 SGM SOT-23-5 SGM236-.8YN5G/TR SS7XX Tape and Reel, 3 SGM SOT-23-5 SGM236-.9YN5G/TR SPXX Tape and Reel, 3 SGM SOT-23-5 SGM236-1.YN5G/TR SP1XX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SP2XX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SP3XX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SP4XX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SP5XX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SP6XX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SP7XX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SP8XX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SP9XX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SPAXX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SS9XX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SPBXX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SN5XX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SPCXX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SPDXX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SPEXX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SPFXX Tape and Reel, 3 NOVEMBER 217 2

3 PACKAGE/ORDERING INFORMATION (continued) PACKAGE ORDERING PACKAGE PACKING MODEL (V) DESCRIPTION NUMBER MARKING OPTION SGM SOT-23-5 SGM236-3.YN5G/TR SQXX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SQ1XX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SQ2XX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SQ3XX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SQ4XX Tape and Reel, 3 SGM SOT-23-5 SGM YN5G/TR SQ5XX Tape and Reel, 3 SGM 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 SGM SC7-5 SGM236-.8YC5G/TR SSBXX Tape and Reel, 3 SGM SC7-5 SGM236-.9YC5G/TR SQ8XX Tape and Reel, 3 SGM SC7-5 SGM236-1.YC5G/TR SQ9XX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SQAXX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SQBXX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SQCXX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SQDXX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SQEXX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SQFXX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SRXX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SR1XX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SR2XX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SS8XX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SR3XX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SN4XX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SR4XX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SR5XX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SR6XX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SR7XX Tape and Reel, 3 SGM SC7-5 SGM236-3.YC5G/TR SR8XX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SR9XX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SRAXX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SRBXX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SRCXX Tape and Reel, 3 SGM SC7-5 SGM YC5G/TR SRDXX Tape and Reel, 3 SGM 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

4 ABSOLUTE MAXIMUM RATINGS IN to GND V to 6V Output Short-Circuit Duration... Infinite EN to GND V to 6V, BP/FB to GND V to (V IN +.3V) Power Dissipation, P T A = +25 UTDFN-1 1-4L... 4mW SOT mW SC mW Package Thermal Resistance UTDFN-1 1-4L, θ JA /W SOT-23-5, θ JA /W SC7-5, θ JA /W Junction Temperature Storage Temperature Range to +15 Lead Temperature (Soldering, 1s) ESD Susceptibility HBM... 4V MM... 4V RECOMMENDED OPERATING CONDITIONS Operating Voltage Range V to 5.5V Operating Temperature Range 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

5 PIN CONFIGURATIONS (TOP VIEW) (TOP VIEW) IN EN 4 3 IN 1 5 GND 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

6 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 V Output Voltage Accuracy I =.1mA % Feedback Voltage V FB I =.1mA, SGM236-ADJ V Maximum Output Current (1) ma Current Limit I LIM ma Supply Pin Current I Q No Load, V EN = V IN 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 =.9V V < 1.1V V < 1.2V V < 1.5V V < 1.8V V < 2.1V V < 2.5V V < 3.V V < 3.6V V 5.V V 3.3V < 1.8V or > 3.3V I =.1mA to 3mA I =.1mA to 3mA, SGM236-ADJ Short Current Limit I SHORT = V 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 f = 1kHz f = 217Hz f = 1kHz I = ma I = 3mA I = ma I = 3mA 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 µs R ON of Discharge MOSFET V IN = 4.V, V EN = V Ω V µa NOVEMBER 217 6

7 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

8 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

9 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

10 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 Frequency (khz) PSRR (db) 6 C BP =. 4 V IN = 4.3V, 2 I = 3mA, = 3.3V Frequency (khz) NOVEMBER 217 1

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. Temperature 5 = 1.8V 4 3 I = 3mA 2 1 I = 1mA Temperature ( ) Dropout Voltage (mv) Dropout Voltage vs. Temperature 25 = 3.3V 2 I = 3mA I = 1mA Temperature ( ) 1.89 Output Voltage vs. Temperature 3.36 Output Voltage vs. Temperature Output Voltage (V) V IN = 2.3V, I =.1mA, = 1.8V Temperature ( ) Output Voltage (V) V IN = 3.8V, 3.29 I =.1mA, = 3.3V Temperature ( ) 25 Supply Pin Current vs. Temperature 25 Supply Pin Current vs. Temperature Supply Pin Current (μa) Temperature ( ) V IN = 2.3V, I = ma, = 1.8V Supply Pin Current (μa) Temperature ( ) V IN = 3.8V I = ma, = 3.3V NOVEMBER

12 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 Output Current (ma) Dropout Voltage (mv) Dropout Voltage vs. Output Current 25 = 3.3V Output Current (ma) 2.1 Output Voltage vs. Output Current 3.5 Output Voltage vs. Output Current Output Voltage (V) V IN = 2.8V Output Voltage (V) V IN = 4.3V Output Current (ma) Output Current (ma) Ground Pin Current (µa) Ground Pin Current vs. Output Current = 1.8V Ground Pin Current (µa) Ground Pin Current vs. Output Current = 3.3V Output Current (ma) Output Current (ma) NOVEMBER

13 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) I =.1mA = 1.8V Input Voltage (V) Output Voltage (V) I =.1mA = 3.3V Input Voltage (V) 25 Supply Pin Current vs. Input Voltage 25 Supply Pin Current vs. Input Voltage Supply Pin Current (μa) Input Voltage (V) I = ma, = 1.8V Supply Pin Current (μa) Input Voltage (V) I = ma, = 3.3V NOVEMBER

14 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 Control UTDFN-1 1-4L V CC Input BZM55B5V6 C 1 1 IN EN SGM236 GND BP 5 C Control SOT-23-5/SC7-5 NOVEMBER

15 PACKAGE INFORMATION PACKAGE LINE DIMENSIONS SC7-5 D e e1.65 E1 E 1.9 b 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 A A b c D E E e.65 TYP.26 TYP e1 1.3 BSC.51 BSC L.525 REF.21 REF L θ 8 8 TX43.

16 PACKAGE INFORMATION PACKAGE LINE DIMENSIONS SOT-23-5 D 1.9 e1 E1 E b e RECOMMENDED LAND PATTERN (Unit: mm) L A A1 A2 θ.2 c Symbol Dimensions In Millimeters Dimensions In Inches MIN MAX MIN MAX A A A b c D E E e.95 BSC.37 BSC e1 1.9 BSC.75 BSC L θ 8 8 TX33.

17 PACKAGE INFORMATION PACKAGE LINE DIMENSIONS UTDFN-1 1-4L D e D1 E1 E f TOP VIEW L b BOTTOM VIEW 3-C A A1 A2 SIDE VIEW RECOMMENDED LAND PATTERN (Unit: mm) Symbol Dimensions In Millimeters MIN MOD MAX A A1..5 A2.152 REF D D E E b e.625 BSC f.195 REF L TX66.

18 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 SC Q3 SOT Q3 UTDFN-1 1-4L Q1 DD1 TX1.

19 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) DD2 TX2.