ADP1653
FEATURES
Small 6.4 mm × 7.2 mm solution 2.2 μH power inductor 92% peak efficiency Tx masking within 50 μs 2.1 A, 12 V power switch Pin-selectable interface: 2-bit logic or I2C Programmable flash and torch current
Up to 200 m A in torch mode Up to 500 m A in flash mode Programmable indicator LED current up to 20 m A Programmable timer register: up to 820 ms flash timeout 2.75 V to 5.5 V input voltage range Low noise, 1.2 MHz PWM operation Safety features
Interrupt output pin Fault condition register Short-circuit protection Output overvoltage protection Thermal overload protection Integrated current limit and soft start Small 3 mm × 3 mm, 16-lead LFCSP footprint
APPLICATIONS
Camera-enabled cellular phones, smart phones Digital still cameras, camcorders, PDAs
OPTIONAL Tx MASK
TYPICAL OPERATING CIRCUIT
INPUT VOLTAGE = 2.75V TO 5.5V
OFF OFF
2.2µH
4.7µF UP TO 10.2V
STR EN VDD
1 SETT
2 SETF
4.7µF 13
PGND 12 INT 11
ONE OR TWO LEDs
3 CTRL1/SCL
INTF...
