MAX1577Y Datasheet, PDF (7/11 Pages) Maxim Integrated Products – 1.2A White LED Regulating Charge Pump for Camera Flashes and Movie Lights

1.2A White LED Regulating Charge Pump for
Camera Flashes and Movie Lights
C1
2.2µF*
2.7V TO 5.5V
C_IN
4.7µF
100%, 33%, 20%,
AND SHUTDOWN
CP
CN
5.3V OVP
R_CS
IN
OUT
C_OUT
10µF
GND
MAX1577Z
EN1
CS
EN2
V_OUT - (300mV OR
100mV OR 60mV)
UP TO 1.2A
OR
*1µF FOR LESS THAN 600mA OUTPUT.
Figure 2. Current Regulation with the MAX1577Z
C1
1µF
2.7V TO 5.5V
C_IN
4.7µF
5.1V, 4.6V, 3.4V
AND SHUTDOWN
CP
CN
5.1V, 4.6V, OR 3.4V
IN
OUT
C_OUT
10µF
GND
MAX1577Y
EN1
CS
EN2
Figure 3. Voltage Regulation with the MAX1577Y
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