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NCP1404SN50T1 Datasheet

  • NCP1404SN50T1

  • 350 mA PWM/PFM Step-Up DC-DC Converter with Low Battery Dete...

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  • ONSEMI

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NCP1404 Series
Product Preview
350 mA PWM/PFM Step-Up
DC-DC Converter with Low
Battery Detector
The NCP1404 series are monolithic PWM/PFM step鈥搖p DC to DC
converters which can automatically change operation mode from
PWM to PFM at light loads to improve efficiency at light loads. With
only four external components, this series allow a simple means to
implement highly efficient converters for powering up portable
equipment up to 350 mA loading.
Additionally, this series is featured with a Low Battery Detector to
monitor battery voltage. The NCP1404 device series are available in
space鈥搒aving TSOP鈥? package with five standard regulated output
voltages. Additional voltages that range from 1.8 V to 5.0 V in
100 mV steps can be manufactured.
Features
http://onsemi.com
6
1
TSOP鈥?
SN SUFFIX
CASE 318G
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Low Start鈥揢p Voltage of 0.8 V
PWM Oscillator Frequency of 600 kHz at 20% Accuracy
High Efficiency 85% at I
OUT
= 200 mA, V
IN
= 2.5 V, V
OUT
= 3.3 V
Output Current up to 350 mA at V
IN
= 2.5 V, V
OUT
= 3.3 V
Duty Ratio: 17% to 85% typ. PWM Control
Duty Ratio:
17% typ. PFM Control
Output Voltage Accuracy
鹵2.5%
Low Battery Detection with Open鈥揹rain Detector Output
Separated Power Supply Pin
Low Profile and Minimum External Parts
Micro Miniature TSOP鈥?
Digital Cameras
Cellular Telephones
Personal Digital Assistants (PDA)
Camcorders
Electronic Games
Pagers
Portable Audio (MP3)
Handheld Instruments
PIN CONNECTIONS AND
MARKING DIAGRAM
LBI
OUT
V
DD
1
XX
d
2
3
(Top View)
XX = Specific Device Code
d
= Date Code
See specific marking information in the ordering information
table on page 3 of this data sheet.
6
5
4
LX
LBO
GND
Typical Applications
ORDERING INFORMATION
Device
NCP1404SN19T1
NCP1404SN27T1
NCP1404SN30T1
NCP1404SN33T1
NCP1404SN50T1
Package
TSOP鈥?
TSOP鈥?
TSOP鈥?
TSOP鈥?
TSOP鈥?
Shipping
3000/T
ape & Reel
3000/T
ape & Reel
3000/T
ape & Reel
3000/T
ape & Reel
3000/T
ape & Reel
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
漏
Semiconductor Components Industries, LLC, 2002
1
June, 2002 鈥?Rev. 0
Publication Order Number:
NCP1404/D

NCP1404SN50T1相關(guān)型號PDF文件下載

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