0
ACTIVE
Input voltage type |
DC/DC |
Topology |
Charge pump, current mode |
Vin (min) (V) |
2.7 |
Vin (max) (V) |
5.5 |
Vout (max) (V) |
5.5 |
Vout (min) (V) |
2.7 |
Iout (max) (A) |
0.7 |
Iq (typ) (mA) |
4 |
Features |
Enable, True Shutdown |
Operating temperature range (°C) |
-40 to 85 |
Dimming method |
PWM |
Number of channels |
1 |
Rating |
Catalog |
DSBGA (YZR)-12-3.9375 mm² 2.25 x 1.75
The LM2758 device is an integrated low-noise, high-current switched capacitor DC-DC converter with a regulated current sink. The device is capable of driving loads up to 700 mA from a single-cell Li-Ion battery. Maximum efficiency is achieved over the input voltage range by actively selecting the proper gain based on the LED forward voltage and current requirements.
One external low-power resistor sets the desired current for indicator, torch, and flash modes. To protect the devices and the flash LED, internal time-out circuitry turns off the LM2758 in case of a faulty prolonged flash mode. Internal soft-start circuitry limits the amount of inrush current during start-up.
For all available packages, see the orderable addendum at the end of the data sheet.WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
