UM175xx 300mA, Micropower, VLDO Linear Regulator UM175xx SOT23-5 General Description The UM175xx series are VLDO (very low dropout) linear regulators designed for low power portable applications. Typical output noise is only 75μVRMS and maximum dropout is just 90mV at the load current of 150mA.The internal P-channel MOSFET pass transistor requires no base current, allowing the device to draw only 100μA during normal operation at the maximum load current of 300mA. Other features include high output voltage accuracy, excellent transient response, under voltage lockout, stability with ultralow ESR ceramic capacitors as small as 1μF, reverse-battery protection, short-circuit and thermal overload protection and output current limiting. The UM175xx series are available in a low profile SOT23-5 package. Applications Features Bluetooth/802.11 Cards PDAs and Notebook Computers Portable Instruments and Battery-Powered Systems Cellular Phones Pin Configurations Very Low Dropout: 90mV(max) at 150mA Maximum Input Voltage: 6.0V Low Noise:75μVRMS (10Hz to 100kHz) ±2%Voltage Accuracy at 150mA Fast Transient Response Under Voltage Lockout Fixed Output Voltage: 3.3V/3.0V/2.8V/2.7V/2.5V/1.8V/1.5V/1.3V/ 1.2V Output Current Limit Reverse-Battery Protection No Protection Diodes Needed Stable with 1μF Output Capacitor Short-Circuit and Thermal Overload Protection Low Profile SOT23-5 Package Top View M: Month Code UM175xx SOT23-5 ________________________________________________________________________ http://www.union-ic.com Rev.05 Nov.2014 1/7 UM175xx Ordering Information Output Voltage 1.2V 1.3V 1.5V 1.8V 2.5V 2.7V 2.8V 3.0V 3.3V 3.5V 4.15V Part Number UM17512 UM17513 UM17515 UM17518 UM17525 UM17527 UM17528 UM17530 UM17533 UM17535 UM175415 Packaging Type SOT23-5 Marking Code 5CE 5CF 5CJ 5CK 5CN 5CP 5CQ 5CR 5CU 5CZ 5CY Shipping Qty 3000pcs/7Inch Tape & Reel Pin Description Pin Number 1 2 3 Symbol IN GND ___________ 4 SHDN NC 5 OUT Function Power Supply Ground Shutdown Input, Active Low Not Connected Voltage Regulated Output Absolute Maximum Ratings (Note 1) Symbol VIN ___________ Parameter Supply Voltage on IN Pin ___________ Value Unit -7.5 to +7.5 V VSHDN Voltage on SHDN Pin -0.3 to +7.5 V VOUT Voltage on OUT Pin -0.3 to +7.5 V Output Short-Circuit Duration TJ TSTG Indefinite Operating Junction Temperature (Notes 2, 3) -40 to +125 °C Storage Temperature Range -65 to +150 °C TL Lead Temperature for Soldering 10 seconds +300 °C Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: The UM175xx is tested and specified under pulse load conditions such that TJ≈TA. The device is guaranteed to meet performance specifications from 0 ℃ to 70 ℃ . 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 overtemperature protection that is intended to protect the device during momentary overload conditions. Junction temperature will exceed 125 ℃ when overtemperature protection is active. Continuous operation above the specified maximum operating junction temperature may impair device reliability. ________________________________________________________________________ http://www.union-ic.com Rev.05 Nov.2014 2/7 UM175xx Electrical Characteristics Symbol Parameter VIN Input Voltage Range VUVLO1 Input Under Voltage Lockout Input Under Voltage Lockout （Note1） VUVLO2 （Note2） IQ ___________ ISHDN IOUT Operating Quiescent Current Shutdown Leakage Current ESD Rating ΔVDO Dropout Voltage ILIMT Output Current Limit Startup Time Response Min VOUT+ VDROP Typ Max Unit 6.0 V VIN falling 2.0 2.6 V VIN falling 2.1 2.3 V IOUT=0mA 90 IOUT=300mA 100 μA 1 Human Body Mode Output Current Output Voltage Accuracy t Test Conditions 1mA≤IOUT≤150mA, TA=+25℃ 1mA≤IOUT≤150mA, TA=-40℃ to +85℃ 1mA≤IOUT≤300mA, TA=-40℃ to +85℃ IOUT=150mA VIN≥2.5V μA 2 kV 300 mA -1 +1 -2 +2 -2.5 +2.5 90 450 RL=68Ω, COUT=1μF % mV mA μs 20 ___________ VIL SHDN Input Low Voltage 0.3×VIN V ___________ VIH SHDN Input High Voltage 0.7×VIN V ___________ TSHDN ΔTSHDN SHDN Input Current Thermal-Shutdown Temperature Thermal-Shutdown Hysteresis Line Regulation Load Regulation Output Voltage Noise PSRR Power Supply Ripple Rejection ___________ SHDN=VIN or GND -1 VOUT+1V≤VIN≤VOUT+2V IOUT=10mA VIN=VOUT+1V 1mA≤IOUT≤150mA 10Hz to 100KHz CIN=0.1μF, IOUT=10mA f=100Hz 70 f=1kHz 65 f=10kHz 50 f=100kHz 40 VIN=VOUT+1V IOUT=100mA 0.1 +1 μA 160 ℃ 20 ℃ 0.09 %/V 0.2 % 75 μVRMS dB Note1: VUVLO1 is measured for devices with VOUT≥1.8V. Note2: VUVLO2 is measured for devices with VOUT≤1.5V. Note3: ΔVDO just define for device with VOUT≥2.5V. ________________________________________________________________________ http://www.union-ic.com Rev.05 Nov.2014 3/7 UM175xx Pin Function IN (Pin 1): Power for UM175xx and Load. Power is supplied to the devices through the IN pin. The IN pin should be locally bypassed to ground if the UM175xx series are more than a few inches away from another source of bulk capacitance. In general, the output impedance of a battery rises with frequency, so it is usually advisable to include an input bypass capacitor in battery-powered circuits. A capacitor in the range of 0.1μF to 1μF is usually sufficient. The UM175xx series are designed to withstand reverse voltages on the IN pin with respect to both ground and the output pin. In the case of a reversed input, which can happen if a battery is plugged in backwards, the UM175xx will act as if there is a large resistor in series with its input with only a small amount of current flow. GND (Pin 2): Ground and Heat Sink. Solder to a ground plane or large pad to maximize heat dissipation. ___________ SHDN (Pin 3): Shutdown, Active Low. This pin is used to put the UM175xx into shutdown. The ___________ SHDN pin cannot be left floating and must be tied to the input pin if not used. NC (Pin 4): Not Connected. OUT (Pin 5): Voltage Regulated Output. The OUT pin supplies power to the load. A minimum output capacitor of 1μF is required to ensure stability. Larger output capacitors may be required for applications with large transient loads to limit peak voltage transients. See the Applications Information section for more information on output capacitance. Typical Application Circuit VIN 3.4V to 6.0V IN 1uF 1uF OFF ON VOUT 3.3V OUT SHDN GND ________________________________________________________________________ http://www.union-ic.com Rev.05 Nov.2014 4/7 UM175xx Typical Performance Characteristics Quiescent Current vs vs Input Voltage Quiescent Current Input Voltage Outpout Voltage Voltage vsvs Output Current Output Output Current 3.34 140 3.33 3.32 Voltage(V) DropoutVoltage(V) Output Quiescent Current(uA) 120 100 80 60 40 3.31 3.30 3.29 3.28 3.27 20 3.26 0 3.25 2.5 3 3.5 4 4.5 5 5.5 6 Input Voltage(V) Dropout Voltage vs vs Output Current Dropout Voltage Output Current 0 1 50 100 150 200 250 300 Output Current(mA) Line Transient Response 120 VIN=3.5V to 4.5V (2.0V/div) Dropout Voltage(mV) 100 80 60 VOUT (100mV/div) 40 UM17533S ILOAD=100mA,100us/div 20 0 0 25 50 75 100 125 150 175 200 225 250 275 300 Output Current(mA) Load Transient Response IOUT=30mA to 200mA (200mA/div) VOUT (20mV/div) UM17533S VIN=4.3V,100us/div ________________________________________________________________________ http://www.union-ic.com Rev.05 Nov.2014 5/7 UM175xx Package Information UM175xx: SOT23-5 Outline Drawing D b θ Symbol 5 E E1 4 2 3 L 1 e c 0.2 e1 A1 A End View A2 Top View Side View A A1 A2 b c D E E1 e e1 L θ DIMENSIONS MILLIMETERS Min Max 1.050 1.250 0.000 0.100 1.050 1.150 0.300 0.500 0.100 0.200 2.820 3.020 1.500 1.700 2.650 2.950 0.950REF 1.800 2.000 0.300 0.600 0° 8° INCHES Min Max 0.041 0.049 0.000 0.004 0.041 0.045 0.012 0.020 0.004 0.008 0.111 0.119 0.059 0.067 0.104 0.116 0.037REF 0.071 0.079 0.012 0.024 0° 8° Land Pattern 2.40 0.90 0.60 0.95 NOTES: 1. Compound dimension: 2.92×1.60; 2. Unit: mm; 3. General tolerance ±0.05mm unless otherwise specified; 4. The layout is just for reference. 0.95 5CX M Tape and Reel Orientation ________________________________________________________________________ http://www.union-ic.com Rev.05 Nov.2014 6/7 UM175xx 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 201210 Tel: 021-51093966 Fax: 021-51026018 Website: www.union-ic.com ________________________________________________________________________ http://www.union-ic.com Rev.05 Nov.2014 7/7