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Data Sheet
BQ25758S: I2C Controlled, Bidirectional Buck-Boost Controller
1 Features
- Wide input voltage operating range: 4.4V to 26V
- Synchronous buck boost DC/DC controller with NFET drivers
- Adjustable switching frequency from
200kHz to 600kHz
- Optional synchronization to external
clock
- Integrated loop compensation with
soft start
- Selectable PFM operation for light
load efficiency improvement
- Optional gate driver supply input for
optimized efficiency
- Support
USB-PD
Standard Power Range (SPR)
in forward and reverse power direction
- Adjustable input and output voltage regulation from 3.3V to 26V with 20mV/step
- Adjustable input and output current
regulation (RAC_SNS, ROUT_SNS) from 400mA to 20A with 50mA/step using 5mΩ
resistor
- Bypass mode
for highest efficiency with VOUT = VAC
- Buck-only
mode
- High accuracy
-
±2% output voltage
regulation
- ±3%
output current regulation
- ±2% input voltage regulation
- ±3% input current regulation
- I2C controlled for optimal system performance with resistor-programmable
option
- Hardware adjustable input and output
current limits
- Integrated 16-bit ADC for
voltage, current, and temperature monitoring
- High safety integration
- Adjustable input overvoltage and
undervoltage protection
- Output
Overvoltage and overcurrent protection
- Thermal shutdown
- Status outputs
- Adapter present status
(PG)
- Switcher
Operation status (STAT)
- Package
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