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.
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Features
MARKING
DIAGRAM
• Inductor Based Converter brings High Efficiency
• Constant Output Current Regulation
• 2.7 to 5.5 V Input Voltage Range
5
TSOP−5
(SOT23−5, SCR59−5)
SN SUFFIX
DCLYW
5
• V to 22 V Output Compliance Allows up to 5 LEDs to be Driven
out
1
CASE 483
1
in Series which Provides Automatic LED Current Matching
• Built−in Output Overvoltage Protection
• 0.3 mA Standby Quiescent Current
DCL = Device Code
Y
= Year
• Includes Dimming Function (PWM)
• Enable Function Driven Directly from Low Battery Voltage Source
• Thermal Shutdown Protection
W
= Work Week
• All Pins are Fully ESD Protected
• Low EMI Radiation
PIN CONNECTIONS
• Pb−Free Package is Available
FB
1
2
5
4
V
bat
Typical Applications
• LED Display Back Light Control
• High Efficiency Step Up Converter
GND
EN
V
out
3
(Top View)
V
bat
V
bat
ORDERING INFORMATION
U1
EN
C1
†
Device
Package
Shipping
3
5
V
bat
NCP5007SNT1
TSOP−5 3000 Tape & Reel
4.7 mF
NCP5007SNT1G
TSOP−5 3000 Tape & Reel
(Pb−Free)
GND
L1
22 mH
†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.
D1
2
1
4
V
out
GND
GND
FB
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, 2004
1
Publication Order Number:
July, 2004 − Rev. 4
NCP5007/D
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