TPS53318DQPR Power Path Management IC Switching Voltage Regulators Hi Eff 8A SD Reg

TPS53318DQPR Power Path Management IC Switching Voltage Regulators Hi Eff 8A SD Reg

1 Features

• Conversion Input Voltage Range: 1.5 V to 22 V

• VDD Input Voltage Range: 4.5 V to 25 V

• 91% Efficiency from 12 V to 1.5 V at 14 A

• Output Voltage Range: 0.6 V to 5.5 V

• 5-V LDO Output

• Supports Single-Rail Input

• Integrated Power MOSFETs with 8 A (TPS53318) or 14 A (TPS53319) of Continuous Output Current

• Auto-Skip Eco-modeTM for Light-Load Efficiency

• < 110 μA Shut Down Current

• D-CAPTM 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

• Pre-Charged Start-Up Capability

• Adjustable Overcurrent Limit with Thermal Compensation

• Overvoltage, Undervoltage, UVLO and Over- Temperature Protection

• Supports All Ceramic Output Capacitors

• Open-Drain Power Good Indication

• Incorporates NexFETTM Power Block Technology

• 22-Pin QFN (DQP) Package with PowerPADTM

2 Applications

• Server/Storage
• Workstations and Desktops
• Telecommunications Infrastructure

3 Description

The TPS53318 and TPS53319 devices are D-CAP mode, 8-A or 14-A synchronous switchers with integrated MOSFETs. They are designed for ease of use, low external component count, and space- conscious power systems.

These devices feature accurate 1%, 0.6-V reference, and integrated boost switch. A sample of competitive features include: 1.5-V to 22-V wide conversion input voltage range, very low external component count, D- CAPTM 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 22 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.

These devices are available in 5 mm x 6 mm, 22-pin QFN package and is specified from –40°C to 85°C.

Device Information