BD3550HFN Datasheet Ultra Low Dropout Linear Regulators

Manufacturer: ROHM

BD3550HFN ultra low dropout linear regulators by ROHM - Datasheet Preview

Datasheet Details

Part number	BD3550HFN
Manufacturer	ROHM
File Size	1.04 MB
Description	Ultra Low Dropout Linear Regulators
Download	BD3550HFN Download (PDF)

General Description

BD3550HFN,BD3551HFN,BD3552HFN ultra low-dropout linear chipset regulator operates from a very low input supply, and offers ideal performance in low input voltage to low output voltage applications.

It incorporates a built-in N-MOSFET power transistor to minimize the input-to-output voltage differential to the ON resistance (RON=100mΩ ) level.

By lowering the dropout voltage in this way, the regulator realizes high current output (Iomax=2.0A ) with reduced conversion loss, and thereby obviates the switching regulator and its power transistor, choke coil, and rectifier diode.

Overview

TECHNICAL NOTE High-performance Regulator IC Series for PCs Ultra Low Dropout Linear Regulators for PC BD3550HFN, BD3551HFN, BD3552HFN (0.5～2.

Key Features

) Internal high-precision reference voltage circuit(0.65V±1%) 2) Built-in VCC undervoltage lockout circuit 3) NRCS (soft start) function reduces the magnitude of in-rush current 4) Internal Nch MOSFET driver offers low ON resistance (100mΩ ) 5) Built-in current limit circuit 6) Built-in thermal shutdown (TSD) circuit 7) Variable output (0.65～2.7V) 8) Small package HSON8 : 2.9×3×0.6(mm) 9) Tracking function.

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