150mA, Micropower, Low Dropout Linear Regulator UM3730DA-xx DFN UM3730P-xx SOT353

Transcription

1 150mA, Micropower, Low Dropout Linear Regulator UM3730DA-xx DFN UM3730P-xx SOT353 General Description The UM3730 series are low dropout linear regulators designed for low power portable applications. Typical output noise is only 220μV RMS and typical dropout voltage is 155mV at the load current of 150mA. Ideal for battery powered applications, the UM3730 draws only 29μA current during no load operation. The UM3730 includes an auto-discharge feature that is activated when the enable pin is low. Other features include 2% output voltage accuracy, excellent transient response, stability with ultra low ESR ceramic capacitors as small as 1μF, thermal overload protection and output current limiting. The UM3730 series are available in low profile DFN and SOT353 packages. Applications Digital Camera PDAs and Notebook Computers Portable Instruments and Battery-Powered Systems Cellular Phones Features Input Voltage Range: 2.5V to 5.5V Guaranteed 150mA Output Current ±2% Voltage Accuracy at 150mA Low Dropout Voltage: 155mV(Typical) at 150mA Low Quiescent Current: 29μA(Typical) Low Noise: 220μV RMS (10Hz to 100kHz) Available Fixed Output Voltage from 1.0V to 3.3V with 0.1V Step Output Current Limit Thermal Overload Protection Stable with 1μF Output Capacitor Low Profile DFN and SOT353 Packages Typical Application Circuit VIN UM3730 VIN VOUT VOUT 1uF 1uF Chip Enable EN GND Rev.02 Dec /11

2 Pin Configurations Top View (Top View) VIN 4 EN 3 XX M EP 1 2 VOUT GND M: Month Code UM3730DA-xx DFN IN GND OUT XXX M EN 3 4 NC M: Month Code UM3730P-xx SOT353 Pin Description Pin Number Pin Name DFN Pin Name SOT353 1 VOUT - Output Voltage 1 - IN Supply Input 2 GND GND Ground 3 EN EN 4 VIN - Supply Input 4 - NC No connect. 5 - OUT Output Voltage Pin Function Enable Input: Active High. High=ON, Low=Off EP HS Pad - Exposed Heat Sink Pad Rev.02 Dec /11

3 Naming Information UM3730 Output Voltage 10: 1.0V 11: 1.1V 12: 1.2V 33: 3.3V Package Type DA: DFN P: SOT353 Available Voltage Version Part Number Output Voltage Packaging Type Marking Code Shipping Qty UM3730DA V JA UM3730DA V JB UM3730DA V J2 UM3730DA V J3 UM3730DA V J4 UM3730DA V J5 UM3730DA V J6 UM3730DA V J7 UM3730DA V J8 UM3730DA V J9 UM3730DA V JC UM3730DA V KB 3000pcs/7Inch DFN UM3730DA V K2 Tape & Reel UM3730DA V K3 UM3730DA V K4 UM3730DA V K5 UM3730DA V K6 UM3730DA V K7 UM3730DA V K8 UM3730DA V K9 UM3730DA V KC UM3730DA V NB UM3730DA V N2 UM3730DA V N3 Rev.02 Dec /11

4 Available Voltage Version (Continued) Part Number Output Voltage Packaging Type Marking Code Shipping Qty UM3730P V UJA UM3730P V UJB UM3730P V UJ2 UM3730P V UJ3 UM3730P V UJ4 UM3730P V UJ5 UM3730P V UJ6 UM3730P V UJ7 UM3730P V UJ8 UM3730P V UJ9 UM3730P V UJC UM3730P V UKB 3000pcs/7Inch SOT353 UM3730P V UK2 Tape & Reel UM3730P V UK3 UM3730P V UK4 UM3730P V UK5 UM3730P V UK6 UM3730P V UK7 UM3730P V UK8 UM3730P V UK9 UM3730P V UKC UM3730P V UNB UM3730P V UN2 UM3730P V UN3 Absolute Maximum Ratings (Note 1) Symbol Parameter Value Unit V IN Supply Voltage on VIN Pin -0.3 to +7.5 V V OUT Voltage on VOUT Pin -0.3 to +7.5 V T J Operating Junction Temperature (Notes 2, 3) -40 to +125 C T STG Storage Temperature Range -55 to +150 C T L Lead Temperature for Soldering 10 seconds +260 C θ JA (Notes 4) Package Thermal Resistance DFN SOT C /W Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: The UM3730 is tested and specified under pulse load conditions such that T J T A. Specifications over the 40 to 125 operating junction temperature range are assured by design, characterization and correlation with statistical process controls. Note 3: This IC includes over temperature protection that is intended to protect the device during momentary overload conditions. Note 4: The maximum allowable power dissipation of any T A (ambient temperature) is P DMAX = (T JMAX - T A )/ θ JA. Exceeding the maximum allowable power dissipation will result in excessive die temperature and the regulator will go into thermal shutdown. Rev.02 Dec /11

5 Electrical Characteristics V IN =V EN =V OUT +1V, C IN =C OUT =1μF, T A =25. Symbol Parameter Test Conditions Min Typ Max Unit V IN Input Voltage Range V Output Voltage Range V I Q Operating Quiescent Current I OUT =0mA μa I EN Enable Input Current V EN =V IN or GND 1 μa I OUT Output Current 150 ma Output Voltage Accuracy I OUT =150mA % I OUT =50mA,V OUT 2.8V mv V OUT ΔV DO I LIMT t V IL V IH T SHDN ΔT SHDN LNR LDR PSRR Dropout Voltage I OUT =150mA,V OUT 2.8V mv I OUT =50mA,V OUT <2.8V mv I OUT =150mA, V OUT <2.8V mv Output Current Limit V OUT =0V ma Startup Time Response I OUT =150mA, C OUT =1μF 30 μs Enable Input Low Voltage V IN =2.5V to5.5v 0.4 V Enable Input High Voltage V IN =2.5V to5.5v 1.2 V Output Voltage TC 100 ppm/ Thermal-Shutdown Temperature 160 Thermal-Shutdown Hysteresis 20 V OUT +1V V IN 5.5V Line Regulation (V IN 2.5V) %/V I OUT =10mA Load Regulation V IN =V OUT +1V (V IN 2.5V) % Output Voltage Noise Power Supply Ripple Rejection Auto-Discharge Resistance 1mA IOUT 150mA V OUT =1.8V, 10Hz to 100kHz C IN =1μF, I OUT =100mA V IN =V OUT +1V (V IN 2.5V) I OUT =100mA V IN =3.6V, V EN =0V f=1khz 45 f=10khz μv RMS db 10 Ω Rev.02 Dec /11

6 Typical Performance Characteristics Quiescent Current vs Input Voltage Iout=0mA Quiescent Current vs Temperature Vin=2.8V, Iout=0mA Ground Current vs Output Current Vin=2.8V Output Voltage vs Input Voltage Iout=150mA Output Voltage vs Output Current Vin=2.8V Output Voltage vs Temperature Vin=2.8V, Iout=1mA Rev.02 Dec /11

7 Typical Performance Characteristics (Continued) Dropout Voltage vs Output Current Vout=1.8V Enable Logic Threshold vs Supply Voltage PSRR vs Frequency Noise VOUT=1.8V, VIN=2.8V, Io=100mA, CIN=COUT=1μF 220μVrms Noise(500μV/div) Time, 50ms/div f=10hz to 100kHz Load Transient Response IOUT=10 to 150mA (50mA/div) Line Transient Response VIN =2.8 to 3.8V(1V/div) VOUT (50mV/div) VOUT (100mV/div) VOUT=1.8V VIN=2.8V, 50μs/div VOUT=1.8V IOUT=150mA, 20μs/div Rev.02 Dec /11

8 Typical Performance Characteristics (Continued) Enable Turn-On Auto Discharge (No Load) EN (1V/div) EN (2V/div) VOUT (1V/div) VOUT (1V/div) VOUT=1.8V VIN =2.8V, RL=68ohm 20μs/div VOUT=1.8V, VIN=3.6V 20μs/div Rev.02 Dec /11

9 Package Information Outline Drawing E A L1 L Z A1 Land Pattern b Pin #1 ID D2 E2 D e Bottom View Side View UM3730DA-xx DFN L2 A3 DIMENSIONS Symbol MILLIMETERS Min Typ Max A A A b D E D E e 0.65BSC L L L Z NOTES: 1. Compound dimension: ; 2. Unit: mm; 3. General tolerance ±0.05mm unless otherwise specified; 4. The layout is just for reference. Tape and Reel Orientation XX M Rev.02 Dec /11

10 Outline Drawing b D e e Top View Side View 3 E1 A1 A2 A θ L L1 UM3730P-xx SOT c End View E DIMENSIONS Symbol MILLIMETERS INCHES Min Max Min Max A A A b c D E E e 0.650REF 0.026REF e L 0.488REF 0.020REF L θ Land Pattern NOTES: 1. Compound dimension: ; 2. Unit: mm; 3. General tolerance ±0.05mm unless otherwise specified; 4. The layout is just for reference. Tape and Reel Orientation XXX M Rev.02 Dec /11

11 IMPORTANT NOTICE The information in this document has been carefully reviewed and is believed to be accurate. Nonetheless, this document is subject to change without notice. Union assumes no responsibility for any inaccuracies that may be contained in this document, and makes no commitment to update or to keep current the contained information, or to notify a person or organization of any update. Union reserves the right to make changes, at any time, in order to improve reliability, function or design and to attempt to supply the best product possible. Union Semiconductor, Inc Add: Unit 606, No.570 Shengxia Road, Shanghai Tel: Fax: Website: Rev.02 Dec /11