UM175415 UNIONSEMI | Alldatasheet
Document overview
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Technical content
Features
z Bluetooth/802.11 Cards z PDAs and Notebook Computers z Portable Instruments and Battery-Powered Systems z Cellular Phones z Very Low Dropout: 90mV(max) at 150mA z Maximum Input Voltage: 6.0V z Low Noise:75μVRMS (10Hz to 100kHz) z ±2%Voltage Accuracy at 150mA z Fast Transient Response z Under Voltage Lockout z Fixed Output Voltage: 1.2V z Output Current Limit z Reverse-Battery Protection z No Protection Diodes Needed z Stable with 1μF Output Capacitor z Short-Circuit and Thermal Overload Protection z Low Profile SOT23-5 Package P i n C o n f i g u r a t i o n s T o p V i e w UM175XX M: Monthly Code SOT23-5
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Ordering Information
Part Number Output Voltage Packaging Type Marking Code Shipping Qty UM175415 4.15V 5CY UM17535 3.5V 5CZ UM17533 3.3V 5CU UM17530 3.0V 5CR UM17528 2.8V 5CQ UM17527 2.7V 5CP UM17525 2.5V 5CN UM17518 1.8V 5CK UM17515 1.5V 5CJ UM17513 1.3V 5CF UM17512 1.2V SOT23-5 5CE 3000pcs/7Inch Tape & Reel Pin Description Pin Number Symbol Function
1 IN Power Supply
2 GND Ground
3 SHDN
Shutdown Input, Active Low
4 NC Not Connected
5 OUT Voltage Regulated Output
Absolute Maximum Ratings (Note 1) Symbol Parameter Value Unit VIN Supply Voltage on IN Pin -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 Indefinite TJ Operating Junction Temperature (Notes 2, 3) -40 to +125 °C TSTG Storage Temperature Range -65 to +150 °C TL Lead Temperature for Sold ering 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 specifi ed under pulse load conditions such that T J≈TA. The device is guaranteed to meet pe rformance 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 protec tion 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.
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Electrical Characteristics
Symbol Parameter Test Conditions Min Typ Max Unit VIN Input Voltage Range VOUT+ VDROP 6.0 V VUVLO1 （Note1） Input Under Voltage Lockout VIN falling 2.0 2.6 V VUVLO2 （Note2） Input Under Voltage Lockout VIN falling 2.1 2.3 V IOUT=0mA 90 μA IQ Operating Quiescent Current IOUT=300mA 100 ISHDN Shutdown Leakage Current 1 μA ESD Rating Human Body Mode 2 KV IOUT Output Current 300 mA 1mA≤IOUT≤150mA, TA=+25℃ -1 +1 % 1mA≤IOUT≤150mA, TA=-40℃ to +85℃ -2 +2 Output Voltage Accuracy 1mA≤IOUT≤300mA, ΔVDO Dropout Voltage I OUT=150mA 90 mV ILIMT Output Current Limit VIN≥2.5V 450 mA t Startup Time Response RL=68Ω, COUT=1μF 20 μs VIL SHDN Input Low Voltage 0.3×V IN V VIH SHDN Input High Voltage 0.7×V IN V SHDN Input Current SHDN =VIN or GND -1 0.1 +1 μA TSHDN Thermal-Shutdown Temperature 160 ℃ ΔTSHDN Thermal-Shutdown Hysteresis 20 ℃ Line Regulation VOUT+1V≤VIN≤VOUT+2V IOUT=10mA 0.09 %/V Load Regulation VIN=VOUT+1V 1mA≤IOUT≤150mA 0.2 % Output Voltage Noise 10Hz to 100KHz CIN=0.1μF, IOUT=10mA 75 μVRMS F=100Hz 70 dB F=1KHz 65 F=10KHz 50 PSRR Power Supply Ripple Rejection VIN=VOUT+1V IOUT=100mA F=100KHz 40 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.04 Feb.2012 4 / 7 UM175XX Pin Function IN (Pin 1): Power for UM175XX and Load. Power is supp lied to the devices through the IN pin. The IN pin should be locally bypassed to gro und if the UM175XX series are more than a few inches away from another source of bulk capacitan ce. In general, the output impedance of a battery rises with frequency, so it is usually a dvisable to include an input bypass capacitor in battery-powered circuits. A cap acitor in the range of 0.1 μF to 1 μF 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 reve rsed input, which can happen if a battery is plugged in backwards, the UM175XX will act as if ther e 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): V oltage Regulated Output. The OUT pin supplies power to the load. A minimum output capacitor of 1 μF is required to ensure stability. Larg er output capacitors may be required for applications with large transient loads to lim it peak voltage transients. See the Applications Information section for more information on output capacitance. Typical Application Circuit IN OUT OFF 3.4V to 6.0V ON 1uF SHDN 1uF VOUT 3.3V GND VIN
http://www.union-ic.com Rev.04 Feb.2012 5 / 7 UM175XX Typical Performance Characteristics IOUT=30mA to 200mA (200mA/div) VOUT (20mV/div) UM17533S VIN=4.3V,100us/div VIN=3.5V to 4.5V (2.0V/div) VOUT (100mV/div) UM17533S ILOAD=100mA,100us/div Load Transient Response Line Transient Response Quiescent Current vs Input Voltage 100 120 140 2 . 533 . 544 . 555 . 56 Input Voltage(V) Quiescent Current(uA) Dropout Voltage vs Output Current 100 120 0 25 50 75 100 125 150 175 200 225 250 275 300 Output Current(mA) Dropout Voltage(mV) Outpout Voltage vs Output Current 3.25 3.26 3.27 3.28 3.29 3.30 3.31 3.32 3.33 3.34 0 1 50 100 150 200 250 300 Output Current(mA) Dropout Voltage(V) Outpout Voltage vs Output Current 3.25 3.26 3.27 3.28 3.29 3.30 3.31 3.32 3.33 3.34 0 1 50 100 150 200 250 300 Output Current(mA) Dropout Voltage(V)
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Package Information
UM175XX: SOT23-5 Outline Drawing DIMENSIONS MILLIMETERS INCHES Symbol Min Max Min Max A 1.050 1.250 0.041 0.049 A1 0.000 0.100 0.000 0.004 A2 1.050 1.150 0.041 0.045 b 0.300 0.500 0.012 0.020 c 0.100 0.200 0.004 0.008 D 2.820 3.020 0.111 0.119 E 1.500 1.700 0.059 0.067 E1 2.650 2.950 0.104 0.116 e 0.950REF 0.037REF e1 1.800 2.000 0.071 0.079 L 0.300 0.600 0.012 0.024 θ 0° 8° 0° 8° Land Pattern 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. Tape and Reel Orientation
http://www.union-ic.com Rev.04 Feb.2012 7 / 7 UM175XX IMPORTANT NOTICE The information in this document has been ca refully reviewed and is believed to be accurate. Nonetheless, this document is subjec t 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 rese rves 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: 2F, No. 3, Lane 647 Songtao Road, Shanghai 201203 Tel: 021-51093966 Fax: 021-51026018 Website: www.union-ic.com