XPSM828303ARDSR中文资料德州仪器数据手册PDF规格书

1 Features

• 2.25-V to 5.5-V input voltage range

• 0.5-V to 4.5-V adjustable output voltage

• 1 FB voltage accuracy (–40°C to 125°C TJ)

• 2.0-MHz switching frequency

• 35-mΩ and 18-mΩ internal power MOSFETs

• DCS-Control topology

• Optimized EMI performance

• Facilitates CISPR 11/32 compliance

– Integrated on-chip noise-filtering capacitors

– Measurements according to CISPR available

• Excellent transient response

• MODE pin for conduction mode selection

• Supports 1.2-V GPIO

• 100 duty cycle for lowest dropout

• Active output discharge

• Power-good output

• Thermal shutdown protection

• Hiccup or latch-off OCP/OVP

• PSpice and SIMPLIS models available

• Create a custom design using the TPSM828303

with WEBENCH® Power Designer

2 Applications

• Industrial PC

• Factory automation and control

• ASIC, SoC, and MCU supply

• Generic point of load

3 Description

The TPSM82830x is an easy-to-use, synchronous,

step-down, DC/DC module family with integrated

inductor. Based on the DCS-Control topology, the

device provides a fast transient response with small

output capacitance. The internal reference allows to

regulate the output voltage down to 0.5 V with a high

feedback voltage accuracy of 1 over the junction

temperature range of –40°C to 125°C.

The TPSM82830x has a MODE pin to control

the device mode of operation. Power save mode

maintains high efficiency down to very light loads for

extending the system battery run-time. Forced-PWM

mode maintains a continuous conduction mode to

make sure the least ripple in the output voltage and a

quasi-fixed switching frequency. The device features a

Power-Good signal and a well-controlled internal softstart

circuit. The device is able to operate in 100

mode. For fault protection, the device incorporates a

HICCUP short-circuit protection as well as a thermal

shutdown. The family is available in a 3.0 mm× 3.0

mm × 2.0 mm QFN package.