Description
Having integrated MOSFETs, the 20-A synchronous switcher TPS53353DQPR operates in D-CAPTM mode. It is made with simplicity of use, minimal exterior component count, and space-saving power systems in mind.
This device has an integrated boost switch, accurate 1 percent, 5.5-mΩ/2.2-mΩ MOSFETs, and 0.6-V reference. There is no need for compensation, internal soft-start control, selectable frequency, a conversion input voltage range of 1.5 V to 15 V, a very low external component count, auto-skip mode operation, D-CAPTM mode control for super-fast transient, and internal soft-start control are a few examples of competitive features.
The supply voltage ranges from 4.5 to 25 volts, the output voltage ranges from 0.6 to 5.5 volts, and the conversion input voltage extends from 1.5 to 15 volts.
The device has a temperature range of -40°C to 85°C and is offered in a 22-pin, 5-mm by 6-mm QFN package.
Features
Overvoltage, undervoltage, UVLO, and overtemperature protection
Supports all ceramic output capacitors
Open-drain power-good indication
Incorporates NexFET? power block technology
22-pin QFN package with PowerPAD?
Selectable auto-skip or PWM-only operation
Built-in 1% 0.6-V reference
0.7-ms, 1.4-ms, 2.8-ms, and 5.6-ms selectable internal voltage servo soft start
Integrated boost switch
Precharged start-up capability
Adjustable overcurrent limit with thermal compensation
Supports single-rail input
Integrated power MOSFETs with 20 A of continuous output current
Auto-skip Eco-mode? for light-load efficiency
< 10-μA shutdown current
D-CAP? mode with fast transient response
Selectable switching frequency from 250 kHz to 1 MHz with external resistor
New product available: TPS548B28 16-V, 20-A synchronous-buck converter with remote sense
Conversion input voltage range: 1.5 V to 15 V
VDD input voltage range: 4.5 V to 25 V
92% efficiency from 12 V to 1.5 V at 20 A
Output voltage range: 0.6 V to 5.5 V
5-V LDO output
Applications
ASIC, SoC, FPGA, DSP core, and I/O voltage
Enterprise rack Servers and storage
Wired networking switches and routers
Automotive electronics
Power converters
