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ON Semiconductor - PFM Step-Up DC-DC Converter

Numéro de référence NCV1406
Description PFM Step-Up DC-DC Converter
Fabricant ON Semiconductor 
Logo ON Semiconductor 





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NCV1406 fiche technique
NCP1406, NCV1406
25 V/25 mA PFM Step-Up
DC-DC Converter
The NCP1406 is a monolithic stepup DCDC converter operating
in a Pulse Frequency Modulation (PFM) scheme with constant peak
current control. It integrates a 0.8 A, 0.7 W internal power switch and
sensing resistor to monitor inductor current. This control scheme
maintains high efficiencies over the entire load current range. The
wide input voltage range, from 1.4V to 5.5 V, enables the user to
operate the device from a LiIon battery or a twocell Alkaline
NiMH. Its ability to boost voltages up to 25 V, and to provide 1 W
output power, makes the NCP1406 the perfect solution for biasing
small and large OLED panels. This device also makes a perfect
solution for biasing a great number of white LEDs in series. A Chip
Enable pin allows the user to control the device to extend the battery
life during standby, and can be pulsewidth modulated for white
LED applications. The versatility of the NCP1406 allows it to be
configured not only as a stepup converter, but also as an inverter and
as a stepdown converter. This solution is proposed in a
spacesaving TSOP5 package.
Features
87% Efficiency at VOUT = 25 V, IOUT = 25 mA, VIN = 5 V
Adjustable Output Voltage up to 25 V
0.8 A, 26 V Internal Power Switch
Operating Input Voltage from 1.4 V to 5.5 V
Low Startup Voltage of 1.8 V Typical at No Load
Low Operating Current of 15 mA (Not Switching)
Low Shutdown Current of 0.3 mA
Operating Switching Frequency up to 1 MHz
Output Voltage SoftStart
Thermal Shutdown Protection
These are PbFree Devices
NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AECQ100
Qualified and PPAP Capable
Typical Applications
LCD Bias Supplies
Small and Large OLED Display Drivers
White LED Driver for Backlight Displays
Personal Digital Assistants (PDA)
Portable Applications:
Cell Phones, Digital Cameras
PDAs, Games, and Portable Video Players
http://onsemi.com
5
1
TSOP5/SOT235/SC595
SN SUFFIX
CASE 483
MARKING
DIAGRAM
5
XXX AYW G
G
1
DAM
AET
A
= Device Marking NCP1406
= Device Marking NCV1406
= Assembly Location
Y = Year
W = Work Week
G = PbFree Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
CE 1
5 LX
FB 2
VDD 3
4 GND
(Top View)
ORDERING INFORMATION
Device
Package
Shipping
NCP1406SNT1G TSOP5 3000 Tape & Reel
(PbFree)
NCV1406SNT1G TSOP5 3000 Tape & Reel
(PbFree)
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2012
October, 2012 Rev. 6
1
Publication Order Number:
NCP1406/D

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