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AP1623 Datasheet(PDF) 3 Page - Anachip Corp |
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AP1623 Datasheet(HTML) 3 Page - Anachip Corp |
3 / 6 page AP1623 PWM Control Step-Down Switching Regulator-Controllers Anachip Corp. www.anachip.com.tw Rev. 0.1 Feb 10, 2004 3/6 Electrical Characteristics (VIN = 5V, T a=25°C, unless otherwise specified) Symbol Parameter Conditions Min. Typ. Max. Unit VOUT(E) Output voltage *1 - VOUT(S) ×0.976 VOUT(S) VOUT(S) ×1.024 V VIN Input voltage AP1623 Series 2.5 -- 16 V ISW Switch Current Duty = 50% 3 -- -- A ISS1 Current consumption 1 VOUT=VOUT(S) ×1.2 -- 35 60 µA ISSS Current consumption during power off VON/OFF =0V -- -- 0.5 µA ∆VOUT1 Line regulation VIN=VOUT(S) ×1.2 to ×1.4 *2 -- 30 60 mV ∆VOUT2 Load regulation Load current=10µA to IOUT(See below) ×1.25 -- 30 60 mV ∆VOUT /∆Ta Output voltage temperature coefficient Ta= -40°C to 85°C -- ±VOUT(S) ×5E-5 -- V/°C VOUT(S)≥ 2.5V 153 180 207 fOSC Oscillation frequency Measure waveform at SW pin VOUT(S)≤ 2.4V 144 180 216 KHz VSH Evaluate oscillation at SW pin 1.8 -- -- VSL Power-Off pin input voltage Evaluate oscillation stop at SW pin -- -- 0.3 V ISH -- -0.1 -- 0.1 µA ISL Power-Off pin input leakage current -- -0.1 -- 0.1 µA TSS Soft-Start time -- 4.0 8.0 16.0 ms EFFI Efficiency VIN = 5V, VOUT = 2.5V IOUT = 1A -- 93 -- % Conditions: The recommended components are connected to the IC, unless otherwise indicated. VIN=VOUT(S) ×1.2[V], IOUT=120[mA] (VIN=2.5V, if VOUT(S) ≤ 2.0V.) Peripheral components: Coil : Sumida Electric Co., Ltd. CD54 (47µH). Diode : Matsushita Electronics Corporation MA720(Schottky type). Capacitor : Matsushita Electronics Corporation TE (16V, 22µF tantalum type). The power-off pin is connected to VIN. Notes: The output voltage indicated above represents a typical output voltage set up. These specifications apply in common to AP1623, unless otherwise noted. *1 VOUT(S) Specified output voltage value. VOUT(E) Actual output voltage value. *2 VIN=2.5V to 2.94V, if VOUT(S) ≤ 2.0V. |
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