150 mA CMOS Low Dropout LDO

B4151
ON/OFF























Pin Connection







Description

The B4151 series are a group of positive output voltage,
five-pin regulators, which provide a high current even
when the input/output voltage differential is small. Low
power consumption and high accuracy is achieved
though CMOS and programmable fuse technologies.
Output voltage: 2.0V to 6.0V in 0.1V increments.

The B4151 consists of a high-precision voltage
reference, an error correction circuit, and a current
limited output driver. Key features include a Shutdown
Pin that reduces supply current. With good transient
responses, output remains stable even during load
changes.

The ON/OFF pin enables the output to be turned off,
resulting in reduced power consumption. Provided in
SOT-25 (150mW) packages minimizes the usage of
board real state.
Features

• Maximum output current: 150 mA.
• Highly accurate: Output voltage +/- 2%(1%)
• Shutdown Supply Current 1µA
• Ground Current of Less than 20µA
• CMOS low power consumption.
0.20V at 160mA
0.38V at 80mA
• Small input/output differential:
• Shut Down Mode for Power Savings
• Improve pin-to-pin XC62GR-XX
• Pin-to-Pin Low Power to Bipolar LDO’s

Applications

• Battery Powered Equipment
• Notebook PC, Palmtops, PDA
• Portable Cameras and Video Recorders
• Reference Voltage Sources
• Cellular / GSM / PCS Phones

Bay Linear
Inspire the Linear Power
SOT-25 (K5)
45
V
out NC
ON/OFF
VV
321

Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 T



Top View
INSS


Ordering Information

Package Part No.
SOT-25 B4151CK5 -X.X
X.X = Fixed Output Voltages from 2.0V to 6.0V









el: (925) 606-5950, Fax: (925) 940-9556 www.baylinear.com