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Discrete
 Semiconductors

Opto Electronics

Passive Components

Modules
 (Sub Systems)

Energy Saving!ECO Devices

Output 1.5A or Less High-efficiency Step-down
Switching Regulators with Built-in Power MOSFET

BD9109FVM

Inquiries concering our products
   Data Sheet (PDF, 669K)
Package RoHS Quality and reliability information Application notes Design Model

[ Product description ]

ROHM's high efficiency step-down switching regulator (BD91□□) is a power supply designed to produce a low voltage including 1 volts from 5 / 3.3 volts power supply line. Offers high efficiency with our original pulse skip control technology and synchronous rectifier. Employs a current mode control system to provide faster transient response to sudden change in load.

Specifications
Number of output 1
Supply Voltage(V) 4.5 to 5.5
Output Current(A) 0.8
Output Voltage 1(V) 3.3
Output Voltage 2(V) -
reference Voltage accuracy(%) ±2.0
Operating temperatur(ºC) -25 to 85
Operating Frequency(kHz) 1000
External synchronous oscillation -
Package size(mm) 4.0×2.9×0.9
[ Pin Configuration ]
BD9109FVM

Features

・1ch Switching Regulator
・Offers fast transient response with current mode PWM control system
・Offers highly efficiency for all load range with synchronous rectifier (Nch / Pch FET) and SLLM™ (Simple Light Load Mode)
・Incorporates soft-start function.
・Incorporates thermal protection and ULVO functions.
・Incorporates short-current protection circuit with time delay function
・Incorporates shutdown function. Icc=0µA (Typ.)

*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
Samples Sales
BD9109FVM-TR MSOP8 Active Yes Embossed Tape And Reel 3000 3000 Purchase Inquiry

* Active: Production or current type  Preview: Development

Others

Please check the details on Product List for Others.

Single-chip Type
with Built-in FET

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