0
ACTIVE
Input voltage type |
DC/DC |
Topology |
Boost, current mode |
Vin (min) (V) |
2.5 |
Vin (max) (V) |
5.5 |
Vout (max) (V) |
5.5 |
Vout (min) (V) |
2.5 |
Iout (max) (A) |
1.5 |
Iq (typ) (mA) |
0.59 |
Features |
Load Disconnect During Shutdown |
Operating temperature range (°C) |
-40 to 85 |
Dimming method |
Analog, PWM |
Number of channels |
3 |
Rating |
Catalog |
DSBGA (YFF)-20-3.96 mm² 1.8 x 2.2
The TPS6130xx device is based on a high-frequency synchronous boost topology with constant current sinks to drive up to three white LEDs in parallel (400-mA, 800-mA, and 400-mA maximum flash current). The extended high-current mode (HC_SEL) allows up to 1025-mA, 2050-mA, and 1025-mA flash current out of the storage capacitor.
The high-capacity storage capacitor on the output of the boost regulator provides the high-peak flash LED current, thereby reducing the peak current demand from the battery to a minimum.
The 2-MHz switching frequency allows the use of small and low profile 2.2-µH inductors. To optimize overall efficiency, the device operates with a 400-mV LED feedback voltage.
The TPS6130xx device not only operates as a regulated current source, but also as a standard voltage boost regulator. The device keeps the output voltage regulated even when the input voltage exceeds the nominal output voltage. The device enters power-save mode operation at light load currents to maintain high efficiency over the entire load current range.
To simplify flashlight synchronization with the camera module, the device offers a trigger pin (FLASH_SYNC) for zero latency LED turnon time.
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