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TPS7A37 Datasheet(PDF) 5 Page - Texas Instruments |
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TPS7A37 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 31 page TPS7A37 www.ti.com SBVS220B – MARCH 2013 – REVISED AUGUST 2015 6.5 Electrical Characteristics Over operating temperature range (TJ = –40°C to 125°C), VIN = VOUT(nom) + 1 V (1), I OUT = 10 mA, VEN = 2.2 V, and COUT = 2.2 μF, unless otherwise noted. Typical values are at TJ = 25°C. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIN Input voltage range(1)(2) 2.2 5.5 V VFB Internal reference TJ = 25°C 1.192 1.204 1.216 V Output voltage range TPS7A3701(3) VFB 5.5 – VDO V Nominal TJ = 25°C 0.23% VOUT over VIN, IOUT, Accuracy(1) , (4) VOUT + 0.5 V ≤ VIN ≤ 5.5 V; and TJ= –40°C to –1% +1.0% 10 mA ≤ IOUT ≤ 1 A 125°C ΔVO(ΔVI) Line regulation(1) VOUT(nom) + 0.5 V ≤ VIN ≤ 5.5 V 0.01 0.03 %/V 0.25% 0.35% 0.1 mA ≤ IOUT ≤ 300 mA ΔVO(ΔIO) Load regulation 3 5 mV 10 mA ≤ IOUT ≤ 1 A 0.5% Dropout voltage(5) VDO IOUT = 1 A 130 200 mV (VIN = VOUT(nom) – 0.1 V) ZO(DO) Output impedance in dropout 2.2 V ≤ VIN ≤ VOUT + VDO 0.25 Ω ICL Output current limit VOUT = 0.9 × VOUT(nom) 1.05 1.6 2.2 A ISC Short-circuit current VOUT = 0 V 450 mA IREV Reverse leakage current(6) (–IIN) VEN ≤ 0.5 V, 0 V ≤ VIN ≤ VOUT 0.1 μA IOUT = 10 mA (IQ) 400 IGND GND pin current μA IOUT = 1 A 1300 ISHDN Shutdown current (IGND) VEN ≤ 0.5 V, VOUT ≤ VIN ≤ 5.5 V 20 nA IFB FB pin current TPS7A3701 0.1 0.6 μA f = 100 Hz, IOUT = 1 A 58 Power-supply rejection ratio (ripple PSRR dB rejection) f = 10 kHz, IOUT = 1 A 37 Output noise voltage VN COUT = 10 μF 27 × VOUT μVRMS BW = 10 Hz to 100 kHz tSTR Startup time VOUT = 3 V, RL = 30 Ω, COUT = 1 μF 600 μs VEN(HI) EN pin high (enabled) 1.7 VIN V VEN(LO) EN pin low (shutdown) 0 0.5 V IEN(HI) EN pin current (enabled) VEN = 5.5 V 20 nA Shutdown, temperature increasing 160 TSD Thermal shutdown temperature °C Reset, temperature decreasing 140 TJ Operating junction temperature –40 125 °C (1) Minimum VIN = VOUT + VDO or 2.2 V, whichever is greater. (2) For VOUT(nom) < 1.6 V, when VIN ≤ 1.6 V, the output will lock to VIN and may result in an over-voltage condition on the output. To avoid this situation, disable the device before powering down VIN. (3) TPS7A3701 is tested at VOUT = 1.2 V. (4) Tolerance of external resistors not included in this specification. (5) VDO is not measured for fixed output versions with VOUT(nom) < 2.3 V since minimum VIN = 2.2 V. (6) Fixed-voltage versions only; refer to the Application Information section for more information. Copyright © 2013–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: TPS7A37 |
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