NCP5603
High Efficiency Charge Pump
Converter
The NCP5603 is an integrated circuit dedicated to the medium
power White LED applications. The power conversion is achieved by
means of a charge pump structure, using two external ceramic
capacitors, making the system extremely tiny. The device supplies a
constant voltage to the load from a low battery voltage source. It is
particularly suited for the High Efficiency LED used in low cost, low
power applications, with high extended battery life.
Features
• Wide Battery Supply Voltage Range: 2.7 < VCC < 5.5 V
• Automatic Operating Mode 1X, 1.5X and 2X Improves Efficiency
• Dimmable Output Current
• Up to 350 mA Output Pulsed Current
• Selectable Output Voltage
• High Efficiency Up To 90%
• Supports 2.5 kV ESD, Human Body Model
• Supports 200 V Machine Model ESD
• Low 40 mA Short Circuit Current
• Pb−Free Package is Available
Applications
• High Power LED
• Back Light Display
• High Power Flash
http://onsemi.com
MARKING
DIAGRAM
DFN10
MN SUFFIX
CASE 485C
5603
ALYW
G
5603
A
L
Y
W
G
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
PIN CONNECTIONS
Vout 1
C1P 2
Vbat 3
Fsel 4
Vsel 5
(Top View)
10 C2P
9 C1N
8 GND
7 C2N
6 EN
ORDERING INFORMATION
Device
Package
Shipping†
NCP5603MNR2 QFN10, 3x3 3000/ Tape & Reel
NCP5603MNR2G QFN10, 3x3 3000/ Tape & Reel
(Pb−Free)
†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, 2005
1
November, 2005 − Rev. 1
Publication Order Number:
NCP5603/D