BD9870FPS | Single-chip Type with Built-in FET Switching Regulators | Switching Regulators | ICs

Simple Step-down Switching Regulators
with Built-in Power MOSFET

BD9870FPS

Data Sheet

Data Sheet (366K)

Technical Data

Package

RoHS

Application notes

Design Model

Quality information

FAQ

[ Product description ]

The BD9870FPS single-channel step-down switching regulator incorporates a Pch MOSFET capable of PWM operation at 900kHz, enabling use of a smaller coil, as well as circuitry that eliminates the need for external compensation - only a diode, coil, and ceramic capacitor are required - reducing board size significantly.

Specifications
Number of output	1
Supply Voltage(V)	8.0 to 35
Output Current(A)	1.5
Output Voltage 1(V)	0.8×(Vcc-Io×Ron)
Output Voltage 2(V)	-
reference Voltage accuracy(%)	±1.0
Operating temperatur(ºC)	-40 to 85
Operating Frequency(kHz)	900
External synchronous oscillation	-
Package size(mm)	6.5×9.5×1.2

[ Pin Configuration ]

Features

・Maximum switching current : 1.5A
・Built-in Pch FET ensures high efficiency
・Output voltage adjustable via external resistors
・High switching frequency : 900kHz (fixed)
・Soft start time : 5ms (fixed)
・Overcurrent and thermal shutdown protection circuits built in
・ON / OFF control via STBY pin
・Ceramic output capacitor compatibility
・Small surface mount TO252S-5 package

*The contents described here are just outline for introduction.
Please obtain the specification sheets from us for thorough check before use.

Status Product

Part No.	Package (PDF)	Status *	RoHS	Constitution materials list	Packing Type	Unit Quantity	Minimum Packaging Quantity	Sales	Distribution Inventory
BD9870FPS-E2	TO252S-5	Active	Yes		Embossed Tape And Reel	2000	2000	Inquiry