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Rating |
Catalog |
Topology |
Boost, Flyback, SEPIC |
Vin (max) (V) |
5.5 |
Vin (min) (V) |
2.5 |
Vout (max) (V) |
84 |
Vout (min) (V) |
20 |
Switch current limit (typ) (A) |
1 |
Features |
Enable, Nonsynchronous, UVLO Fixed |
Operating temperature range (°C) |
-40 to 125 |
Iq (typ) (A) |
0.0005 |
Duty cycle (max) (%) |
99 |
WQFN (RTE)-16-9 mm² 3 x 3
The TPS61391 is a 700-kHz pulse-width modulating (PWM) step-up converter with an 85-V switch FET with an input ranging from 2.5 V to 5.5 V. The switching peak current is up to 1000 mA. The TPS61391 includes accurate current mirror with two gain options selectable (1 : 5 or 4 : 5).
The TPS61391 also provides high optical-power protection with an additional FET in series with the APD power path with the typical response time of 0.5 µs . It can recover automatically once the high optical releasing.
The TPS61391 is available in 3 mm × 3 mm QFN package with exposed pad underneath.