High Power White LED Driver
PAM2800
Features
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High Efficiency 92%
Up to 350mA Constant Source Current
Low Quiescent Current: Typ. 65 μ A
0.5 μ A Shutdown Current
Short Circuit Protection
Open Load LED Protection
Thermal Protection
Space Saving Package SOT23-5
Pb-Free Package
General Descriptio
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The PAM2800 is a high power white LED driver
with 350mA constant rated source current. It
features high efficiency and low quiescent current,
making it ideal for battery powered applications.
Applications
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High Power White LED Driver
Typical Application Circuit
Efficiency vs Supply Voltage
100
IN
VIN
Efficiency(%)
VOUT
PAM2800
EN
GND
FB
C
IN
1μF
95
R1
C
O
2.2 μ F
90
85
80
75
70
R
S
R2
1W
WLED
65
60
4.8
4.5
4.2
3.9
3.6
3.3
Supply Voltage(V)
Figure 1
Power Analog Microelectronics
,
Inc
www.poweranalog.com
09/2008 Rev 1.1
1
PAM [ POWER ANALOG MICOELECTRONICS ]
