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MP8715

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100% Duty Cycle Synchronous 4A, 21V, 500kHz Step-Down Converter

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Datasheet (EN)

Product Description

The MP8715 is a 500 kHz fixed-frequency PWM synchronous step-down regulator. MP8715 operates from a 4.5V to 21V input and generates an output voltage form 0.8V to VIN with 100% duty cycle operation. The MP8715 integrates a 120mΩ high-side switch and a 50mΩ synchronous rectifier for high efficiency without an external Schottky diode. It offers a very compact solution to achieve 4A continuous output current over a wide input supply range with excellent load and line regulation. External soft start and power good indication meet flexible design requirement. The MP8715 is available in a space saving 8-pin SOIC package with an exposed pad.

Product Features

4A Output Current
Wide 4.5V to 21V Input Operation Range
100% Duty Cycle Support
120mΩ/50mΩ Internal Power MOSFET
All Ceramic Capacitor Design
Up to 95% Efficiency
500kHz Fixed Switching Frequency
Adjustable Output from 0.8V to Vin
External Soft-Start
Frequency Synchronization Input
Power OK Indicator
Internal Compensation
Over Current Hiccup and Thermal Protection
8-pin SOIC Package with an Exposed Pad

Parametrics

fsw (max) (kHz)500
Vin (min) (V)4.5
Vin (max) (V)21
Iout (max) (A)4
Isw Limit (typ) (A)7
Max Duty Cycle (%)1
Vfb (V)0.805
Iq (typ) (mA)0.66
Regulated Outputs1
Vout (max) (V)21
Vout (min) (V)0.8
GradeCatalog
PackageQFN-14 (3x4)
Control ModeCurrent Mode
Common FeaturesExternal Soft Start, Power Good, Synchronous Rectification
Special Features100% Duty Cycle, External Frequency Sync

100% Duty Cycle Synchronous 4A, 21V, 500kHz Step-Down Converter EV Board

The MP8715 is a 500kHz fixed-frequency PWM synchronous step-down regulator. MP8715 operates from a 4.5V to 21V input and generates an output voltage form 0.8V to VIN with 100% duty cycle operation.

The MP8715 integrates a 120m? high-side switch and a 50m? synchronous rectifier for high efficiency without an external Schottky diode. It offers a very compact solution to achieve 4A continuous output current over a wide input supply range with excellent load and line regulation.

External soft start and power good indication meet flexible design requirement.

$25.00 + tax