Packaging information
| Package | Pins LSON-CLIP (DQP) | 22 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 250 | SMALL T&R |
Features for the TPS53353
- 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
- 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
- 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
- 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™
- For SWIFT™ power products documentation, see http://www.ti.com/swift
Description for the TPS53353
TPS53353 is a D-CAP™ mode, 20-A synchronous switcher with integrated MOSFETs. It is designed for ease of use, low external component count, and space-conscious power systems.
This device features 5.5-mΩ / 2.2-mΩ integrated MOSFETs, accurate 1%, 0.6-V reference, and integrated boost switch. A sample of competitive features include: a conversion input voltage range from 1.5 V to 15 V, very low external component count, D-CAP™ mode control for super fast transient, auto-skip mode operation, internal soft-start control, selectable frequency, and no need for compensation.
The conversion input voltage ranges from 1.5 V to 15 V, the supply voltage range is from 4.5 V to 25 V, and the output voltage range is from 0.6 V to 5.5 V.
The device is available in 5-mm × 6-mm, 22-pin QFN package and is specified from –40°C to 85°C.
The TPS548B28 is a newer 20A device designed for data center applications with a smaller, Pb-free package.