NCP5007
Compact Backlight LED
Boost Driver
The NCP5007 is a high efficiency boost converter operating in a
current control loop, based on a PFM mode, to drive White LEDs. The
current mode regulation allows a uniform brightness of the LEDs. The
chip has been optimized for small ceramic capacitors and is capable of
supplying up to 1.0 W output power.
http://onsemi.com
Features
MARKING
DIAGRAM
• Inductor Based Converter brings High Efficiency
• Constant Output Current Regulation
• 2.7 to 5.5 V Input Voltage Range
5
5
1
TSOP−5
DCLAYWG
(SOT23−5, SCR59−5)
SN SUFFIX
• V to 22 V Output Compliance Allows up to 5 LEDs to be Driven
G
out
in Series which Provides Automatic LED Current Matching
• Built−in Output Overvoltage Protection
• 0.3 mA Standby Quiescent Current
CASE 483
1
DCL = Device Code
A
Y
W
G
= Assembly Location
= Year
• Includes Dimming Function (PWM)
• Enable Function Driven Directly from Low Battery Voltage Source
• Thermal Shutdown Protection
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
• All Pins are Fully ESD Protected
• Low EMI Radiation
• Pb−Free Package is Available
PIN CONNECTIONS
Typical Applications
• LED Display Back Light Control
• High Efficiency Step Up Converter
FB
GND
EN
1
2
5
4
V
V
bat
3
out
(Top View)
V
V
bat
bat
U1
EN
C1
3
5
ORDERING INFORMATION
V
bat
†
Device
Package
Shipping
4.7 mF
GND
NCP5007SNT1
TSOP−5 3000/Tape & Reel
L1
22 mH
NCP5007SNT1G
TSOP−5 3000/Tape & Reel
(Pb−Free)
D1
2
1
4
V
out
GND
GND
FB
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
MBR0530
C2
1.0 mF
NCP5007
D6
D5
D4
D3
D2
R1
5.6 W
GND
GND
Figure 1. Typical Application
©
Semiconductor Components Industries, LLC, 2006
1
Publication Order Number:
March, 2006 − Rev. 4
NCP5007/D