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S-85S1PD24-I8T1U Datasheet(PDF) 7 Page - Seiko Instruments Inc |
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S-85S1PD24-I8T1U Datasheet(HTML) 7 Page - Seiko Instruments Inc |
7 / 38 page POWER MONITORING OUTPUT, 5.5 V INPUT, 200 mA SYNCHRONOUS STEP-DOWN SWITCHING REGULATOR WITH 260 nA QUIESCENT CURRENT Rev.1.3_00 S-85S1P Series 7 Electrical Characteristics 1. DC-DC converter block Table 6 (VIN = 3.6 V *1, Ta = +25°C unless otherwise specified) Item Symbol Condition Min. Typ. Max. Unit Operating input voltage VIN − 2.2 3.6 5.5 V Output voltage *2 VOUT 1.0 V ≤ VOUT ≤ 3.9 V, no external parts VOUT(S) × 0.985 VOUT(S) VOUT(S) × 1.015 V 0.7 V ≤ VOUT <1.0 V, no external parts VOUT(S) − 0.015 VOUT(S) VOUT(S) + 0.015 V Current consumption at shutdown ISSS VEN = 0 V − 1 100 nA Current consumption at switching off ISS1 VOUT = VOUT(S) + 0.1 V, VEN = VIN, no external parts, no switching operation − 260 500 nA High level input voltage VSH VIN = 2.2 V to 5.5 V, EN pin 1.1 − − V Low level input voltage VSL VIN = 2.2 V to 5.5 V, EN pin − − 0.3 V High level input current ISH VIN = 2.2 V to 5.5 V, EN pin, VEN = VIN −100 − 100 nA Low level input current ISL VIN = 2.2 V to 5.5 V, EN pin, VEN = 0 V −100 − 100 nA High side power MOS FET on-resistance RHFET ISW = 100 mA − 420 − m Ω Low side power MOS FET on-resistance RLFET ISW = −100 mA − 320 − m Ω High side power MOS FET leakage current IHSW VIN = 2.2 V to 5.5 V, VEN = 0 V, VSW = 0 V − 1 100 nA Low side power MOS FET leakage current ILSW VIN = 2.2 V to 5.5V, VEN = 0 V, VSW = VIN −100 1 − nA Current limit *3 ILIM L = 2.2 μH − 450 − mA ON time *4 tON tON(S) = 1/fSW *5 × VOUT/VIN, VOUT = VOUT(S) × 0.9 tON(S)/1.3 tON(S) tON(S)/0.7 ns Minimum OFF time tOFF(MIN) − − 100 − ns UVLO detection voltage VUVLO− When VIN falls 1.7 1.8 1.9 V UVLO release voltage VUVLO+ When VIN rises 1.9 2.0 2.1 V UVP detection voltage VUVP − − VOUT(S) × 0.7 − V Soft-start wait time tSSW Time until VOUT starts rising − 1.5 − ms Soft-start time tSS Time until VOUT reaches 90% after it starts rising − 1.0 − ms Thermal shutdown detection temperature TSD Junction temperature − 135 − °C Thermal shutdown release temperature TSR Junction temperature − 115 − °C *1. VIN = VOUT(S) + 1.0 V (VOUT(S) ≥ 2.6 V) *2. VOUT: Actual output voltage VOUT(S): Set output voltage *3. The current limit changes according to the L value for the inductor to be used, input voltage, and output voltage. Refer to " Operation" for details. *4. tON: Actual ON time tON(S): Set ON time *5. fSW: Switching frequency (1 MHz) |
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Similar Description - S-85S1PD24-I8T1U |
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