NCP1403 Datasheet, PDF (1/20 Pages) ON Semiconductor – 15 V/50 mA PFM Step-Up DC-DC Converter

NCP1403
15 V/50 mA PFM Step−Up
DC−DC Converter
The NCP1403 is a monolithic PFM step-up DC-DC converter.
This device is designed to boost a single Lithium or two cell
AA/AAA battery voltage up to 15 V (with internal MOSFET) output
for handheld applications. A pull-up Chip Enable feature is built
with this device to extend battery-operating life. Besides, the device
can also be incorporated in step-down, and voltage-inverting
configurations. This device is available in space-saving TSOP-5
package.
Features
• 82% Efficiency at V_OUT = 15 V, I_OUT = 50 mA, V_IN = 5.0 V
• 78% Efficiency at V_OUT = 15 V, I_OUT = 30 mA, V_IN = 3.6 V
• Low Operating Current of 19 mA (No Switching)
• Low Shutdown Current of 0.3 mA
• Low Start-up Voltage of 1.3 V Typical at 0 mA
• Output Voltage up to 15 V with Built-in 16 V MOSFET Switch
• PFM Switching Frequency up to 300 kHz
• Chip Enable
• Low Profile and Minimum External Parts
• Micro Miniature TSOP-5 Package
Typical Applications
• LCD Bias
• Personal Digital Assistants (PDA)
• Digital Still Camera
• Handheld Games
• Hand-held Instrument
http://onsemi.com
5
1
TSOP-5
CASE 483
SN SUFFIX
PIN CONNECTIONS AND
MARKING DIAGRAM
CE 1
5 LX
FB 2
VDD ³
4 _GND
(Top View)
DCE = Device Marking
Y = Year
W = Work Week
ORDERING INFORMATION
Device
Package
Shipping
NCP1403SNT1
TSOP-5 3000/Tape & Reel
© Semiconductor Components Industries, LLC, 2002
1
December, 2002 - Rev. 4
Publication Order Number:
NCP1403/D