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TPS73701 Datasheet(PDF) 3 Page - Texas Instruments |
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TPS73701 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 18 page  www.ti.com ELECTRICAL CHARACTERISTICS TPS737xx SBVS067C – JANUARY 2006 – REVISED AUGUST 2006 Over operating temperature range (T J = –40°C to +125°C), VIN = VOUT(nom) + 1.0V (1), I OUT = 10mA, VEN = 2.2V, and C OUT = 2.2µF, 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 (TPS73701) TJ = +25°C 1.198 1.20 1.210 V Output voltage range VFB 5.5 – VDO V (TPS73701) VOUT Nominal TJ = +25°C –1.0 +1.0 Accuracy(1)(3) % over VIN, IOUT, VOUT + 0.5V ≤ VIN ≤ 5.5V; –3.0 ±0.5 +3.0 and T 10mA ≤ I OUT ≤ 1A ∆V OUT%/∆VIN Line regulation(1) VOUT(nom) + 0.5V ≤ VIN ≤ 5.5V 0.01 %/V 1mA ≤ I OUT ≤ 1A 0.002 ∆V OUT%/∆IOUT Load regulation %/mA 10mA ≤ I OUT ≤ 1A 0.0005 Dropout voltage(4) VDO IOUT = 1A 130 500 mV (VIN = VOUT(nom) – 0.1V) ZO(DO) Output impedance in dropout 2.2V ≤ V IN ≤ 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 = 0V 450 mA IREV Reverse leakage current(5) (–IIN) VEN ≤ 0.5V, 0V ≤ VIN ≤ VOUT 0.1 µA IOUT = 10mA (IQ) 400 IGND Ground pin current µA IOUT = 1A 800 ISHDN Shutdown current (IGND) VEN ≤ 0.5V, VOUT ≤ VIN ≤ 5.5 20 nA IFB FB pin current (TPS73701) 0.1 0.6 µA f = 100Hz, IOUT = 1A, 58 VIN = VOUT + 1V Power-supply rejection ratio PSRR dB (ripple rejection) f = 10kHz, IOUT = 1A, 37 VIN = VOUT + 1V Output noise voltage VN COUT = 10µF 27 × V OUT µV RMS BW = 10Hz – 100KHz tSTR Startup time VOUT = 3V, RL = 30Ω, COUT = 1µF 600 µs VEN(HI) Enable high (enabled) 1.7 VIN V VEN(LO) Enable low (shutdown) 0 0.5 V IEN(HI) Enable pin current (enabled) VEN = 5.5V 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 2.2V, whichever is greater. (2) For VOUT(nom) < 1.6V, when VIN ≤ 1.6V, 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) Tolerance of external resistors not included in this specification. (4) VDO is not measured for fixed output versions with VOUT(nom) < 2.3V since minimum VIN = 2.2V. (5) Refer to the Applications section for more information. 3 Submit Documentation Feedback |
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