Single-chip Type with built-in FET Switching Regulator Series Flexible Step-down Switching Regulators with Built-in Power MOSFET BD9778F, BD9778HFP, BD9001F, BD9781HFP
The flexible step-down switching regulator controller is a switching regulator controller designed with a high-withstand-voltage built-in POWER MOS FET, providing a free setting function of operating frequency with external resistor. This switching regulator controller features a wide input voltage range (7 V to 35 V or 7 V to 48 V) and operating temperature range (-40℃ to +125℃ or-40℃ to +95℃). Furthermore, an external synchronization input pin (BD9781HFP) enables synchronous operation with external clock.
Features:
● Minimal external components
● Wide input voltage range: 7 V to 35 V (BD9778F/HFP and BD9781HFP), 7 V to 48 V (BD9001F)
● Built-in P-ch POWER MOS FET
● Output voltage setting enabled with external resistor: 1 to VIN
● Reference voltage accuracy: ±2%
● Wide operating temperature range: -40℃ to +125℃(BD9778F/HFP and BD9781HFP), -40℃ to +95℃ (BD9001F)
● Low dropout: 100% ON Duty cycle
● Standby mode supply current: 0 μA (Typ.) (BD9778F/HFP and BD9781HFP), 4 μA (Typ.) (BD9001F)
● Oscillation frequency variable with external resistor: 50 to 300 kHz (BD9001F), 50 to 500 kHz (BD9778F/HFP and BD9781HFP)
● External synchronization enabled (only on the BD9781HFP)
● Soft start function: soft start time fixed to 5 ms (Typ.))
● Built-in overcurrent protection circuit
● Built-in thermal shutdown protection circuit
● High power HRP7 package mounted (BD9778HFP and BD9781HFP) Compact SOP8 package mounted (BD9778F and BD9001F)
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flexible step-down switching regulator controller 、 Flexible Step-downSwitching Regulators |
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[ industrial equipment ][ Flat TV ][ printer ][ DVD ][ car audio ][ car navigation ][ ETC ][ AV ][ OA ] |
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Datasheet |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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DEC.2015 |
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REV C |
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10027EBT41 |
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2.2 MB |
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