Texas Instruments LM5177
The LM5177 is a four switch buck-boost controller. The device provides a regulated output voltage if the input voltage is higher, equal, or lower than the adjusted output voltage. The LM5177 runs at a fixed switching frequency, which can be set through the RT or SYNC pin.| Part No. | LM5177 |
|---|---|
| Datasheet | LM5177 Download |
| Manufacturer |  Texas Instruments |
| Description | Bidirectional 4-Switch Buck-Boost Controller |
| Buy | Stock & Price |
FEATURES
● Wide input range from 3.5V to 60V (85V absolute maximum) – Minimum 2.8V when V(BIAS) > 3.5V● Output voltage from 3.3V to 60V
● Low shutdown IQ of 3μA
● Low operating IQ of 60μA
● 3% reverse current limit accuracy for precise charging currents
● Average input and output current monitor or limiter
● Dynamic output voltage tracking for PWM or analog input signals
● Power save mode (PSM) selectable for high light load efficiency
● Two integrated high-voltage supply LDOs with automatic selection
● 2A peak current logic level gate driver – Integrated bootstrap diode – Bootstrap overvoltage and undervoltage protection
● Fixed frequency across all operating modes (boost, buck-boost, buck) – Forced PWM mode selectable – Switching up to 600kHz for small solution and component size – External clock synchronization
● Spread spectrum operation selectable
● Adjustable undervoltage protection
● Hiccup overcurrent and short protection 2
APPLICATIONS
● Backup power systems (battery backup,...
