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BD3523HFN 数据表(PDF) 1 Page - Rohm

部件名 BD3523HFN
功能描述  Nch FET Ultra LDOs for Desktop PCs
Download  21 Pages
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制造商  ROHM [Rohm]
网页  http://www.rohm.com
标志 ROHM - Rohm

BD3523HFN 数据表(HTML) 1 Page - Rohm

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www.rohm.com
2009.04 - Rev.B
© 2009 ROHM Co., Ltd. All rights reserved.
Hi-performance Regulator IC Series for PCs
Nch FET Ultra LDOs
for Desktop PCs
BD3523HFN, BD35230HFN, BD35231HFN
Description
The BD3523HFN, BD35230HFN, BD35231HFN 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=150mΩ) 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. Thus, the
BD3523HFN, BD35230HFN, BD35231HFN designed to enable significant package profile downsizing and cost reduction. In
BD3523HFN, an external resistor allows the entire range of output voltage configurations between 0.65 and 2.7V, while the
NRCS (soft start) function enables a controlled output voltage ramp-up, which can be programmed to whatever power supply
sequence is required.
Features
1) Internal high-precision reference voltage circuit(0.65V±1%)
2) Internal high-precision output voltage circuit <BD35230HFN/BD35231HFN>
3) Built-in VCC undervoltage lockout circuit (VCC=3.80V)
4) NRCS (soft start) function reduces the magnitude of in-rush current
5) Internal Nch MOSFET driver offers low ON resistance (100mΩ typ)
6) Built-in short circuit protection (SCP)
7) Built-in current limit circuit (2.0A min)
8) Built-in thermal shutdown (TSD) circuit
9) Variable output (0.65~2.7V) <BD3523HFN>
10) High-power package HSON8 : 2.9mm×3.0mm×0.6mm
11) Tracking function
Applications
Notebook computers, Desktop computers, LCD-TV, DVD, Digital appliances
Line-up
Maximum Output Voltage
Package
Product name
Adjustable (0.65~2.7V)
HSON8
BD3523HFN
1.0V (fixed)
BD35230HFN
1.2V (fixed)
BD35231HFN
No.09030EBT01


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