TPS543620 4-V to 18-V Input, 6-A Synchronous SWIFT™ Step-Down Converter with Internally Compensated Advanced Current Mode Control

1 Features

Fixed-frequency, internally-compensated advanced current mode (ACM) control
Integrated 25-mΩ and 6.5-mΩ MOSFETs
Input voltage range: 4 V to 18 V
Output voltage range: 0.5 V to 7 V
Three selectable PWM ramp options to optimize the control loop performance
Five selectable switching frequencies: 500 kHz, 750 kHz, 1 MHz, 1.5 MHz, and 2.2 MHz
Synchronizable to an external clock
0.5-V, ±0.5% voltage reference accuracy over full temperature range
Selectable soft start times: 0.5 ms, 1 ms, 2 ms, and 4 ms
Monotonic start-up into pre-biased outputs
Selectable current limits to support 6-A and 3-A operation
Enable with adjustable input undervoltage lockout
Power good output monitor
Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
Pin-to-pin compatible with TPS543820 and TPS543320
–40°C to 150°C operating junction temperature
2.5-mm × 3-mm, 14-pin VQFN-HR package with 0.5-mm pitch