TPSM828301ARDSR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)

• Optimized EMI performance

• Facilitates CISPR 11/32 compliance

– Integrated on-chip noise-filtering capacitors

– Measurements according to CISPR available

• Excellent transient response

• 7-μA operating quiescent current

• 2.0-MHz switching frequency

• 35-mΩ and 18-mΩ internal power MOSFETs

• DCS-Control topology

• 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

• SIMPLIS model available

2 Applications

• Industrial PC

• Factory automation and control

• Medical patient monitor

• 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 and integrated on-chip noise-filtering

capacitors. Based on the DCS-Control topology, the

devices provide 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 devices feature a

Power-Good signal and a well-controlled internal softstart

circuit. The devices are able to operate in 100%

mode. For fault protection, the devices incorporate 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.