ROHM, BD9870FPS-E2 Step-Down Switching Regulator 1.5A Adjustable 5-Pin, TO252S

  • RS Stock No. 167-7208
  • Mfr. Part No. BD9870FPS-E2
  • Manufacturer ROHM
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

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.

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

Attribute Value
Maximum Output Current 1.5A
Maximum Output Voltage 28 V
Regulator Function Buck Converter
Minimum Output Voltage 1 V
Minimum Input Voltage 8 V
Maximum Input Voltage 35 V
Output Type Adjustable
Mounting Type Surface Mount
Pin Count 5
Package Type TO252S
Switching Regulator Yes
Line Regulation 25 mV
Load Regulation 40 mV
Height 0.93mm
Maximum Operating Temperature +85 °C
Maximum Switching Frequency 900 kHz
Length 6.5mm
Dimensions 6.5 x 5.5 x 0.93mm
Width 5.5mm
Minimum Operating Temperature -40 °C
35 Within 4 working day(s) (Global stock)
15 Within 6 working day(s) (Global stock)
Price Each (In a Pack of 5)
MYR 6.75
Per unit
Per Pack*
5 - 20
25 - 120
125 +
*price indicative