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LQA48B Datasheet(PDF) 10 Page - National Semiconductor (TI) |
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LQA48B Datasheet(HTML) 10 Page - National Semiconductor (TI) |
10 / 32 page V O8 LDO Electrical Characteristics Unless otherwise noted, V IN =VBATT = 3.6V. Typical values and limits appearing in normal type apply for TJ = 25˚C. Limits ap- pearing in boldface type apply over the entire junction temperature range for operation, −40 to +125˚C. (Notes 2, 8, 9) Symbol Parameter Condition Min Typ Max Units V OUT Accuracy Output Voltage 1 mA ≤ I OUT ≤ 150 mA, V OUT = 2.7V 3.0V ≤ V BATT =VIN ≤ 5.5V −3 ±1.0 +3 % V OUT Range Programmable Output Voltage Range 0µA ≤ I OUT ≤ 150 mA Programming Resolution = 100 mV 2.5 3.0 3.2 V I OUT Output Current (V OUT + 0.25V, 3.0V)MAX ≤ V BATT V BATT =VIN ≤ 5.5V 150 mA Output Current Limit V OUT = 0V 510 V IN–VOUT Dropout Voltage I OUT =75mA 30 173 mV ∆V OUT Line Regulation (V OUT + 0.25V, 3.0V)MAX ≤ V BATT V BATT =VIN ≤ 5.5V, I OUT =75mA 3 mV Load Regulation V IN = 3.6V, 1 mA ≤ I OUT ≤ 150 mA 12 41 e N Output Noise Voltage 10 Hz ≤ f ≤ 100 kHz, C OUT = 2.2 µF 27 µV RMS PSRR Power Supply Ripple Rejection Ratio f = 217 Hz, C OUT = 2.2 µF 57 dB I GND Ground Current I OUT = 100 µA 30 µA C OUT Output Capacitance Output Capacitor ESR 0µA ≤ I OUT ≤ 150 mA 220 µF 5 500 m Ω t START-UP Start-Up Time from Shutdown C OUT = 2.2 µF, IOUT = 150 mA (Note 10) 60 µs V O9 LDO Electrical Characteristics Unless otherwise noted, V IN =VBATT = 3.6V. Typical values and limits appearing in normal type apply for TJ = 25˚C. Limits ap- pearing in boldface type apply over the entire junction temperature range for operation, −40 to +125˚C. (Notes 2, 8, 9) Symbol Parameter Condition Min Typ Max Units V OUT Accuracy Output Voltage 1 mA ≤ I OUT ≤ 200 mA, V OUT = 2.2V 3.0V ≤ V BATT =VIN ≤ 5.5V −3 ±1.0 +3 % V OUT Range Programmable Output Voltage Range 0µA ≤ I OUT ≤ 200 mA Programming Resolution = 100 mV 1.5 3.0 3.0 V I OUT Output Current (V OUT + 0.25V, 3.0V)MAX ≤ V BATT V BATT =VIN ≤ 5.5V 200 mA Output Current Limit V OUT = 0V 770 V IN–VOUT Dropout Voltage I OUT = 100 mA 50 288 mV ∆V OUT Line Regulation (V OUT + 0.25V, 3.0V)MAX ≤ V BATT V BATT =VIN ≤ 5.5V, I OUT = 100 mA 3 mV Load Regulation V IN = 3.6V, 1 mA ≤ I OUT ≤ 200 mA 15 44 e N Output Noise Voltage 10 Hz ≤ f ≤ 100 kHz, C OUT = 4.7 µF 27 µV RMS PSRR Power Supply Ripple Rejection Ratio f = 217 Hz, C OUT = 4.7 µF 60 dB I GND Ground Current I OUT = 100 µA 30 µA C OUT Output Capacitance Output Capacitor ESR 1µA ≤ I OUT ≤ 200 mA 220 µF 5 500 m Ω t START-UP Start-Up Time from Shutdown C OUT = 4.7 µF, IOUT = 200 mA (Note 10) 60 µs www.national.com 10 |
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