TPS628304ARZER中文资料德州仪器数据手册PDF规格书

1 Features

• 2.25V to 5.5V input voltage range

• 0.5V to 4.5V 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

• 7μA operating quiescent current

• 2.0MHz switching frequency

• 35mΩ and 18mΩ internal power MOSFETs

• DCS-Control topology

• MODE pin for conduction mode selection

• Supports 1.2V 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

• Create a custom design using the TPS62830x with

WEBENCH® Power Designer

2 Applications

• Solid state drive

• Portable electronics

• Analog security and IP network cameras

• Industrial PC

• Factory automation and control

• ASIC, SoC, and MCU supply

• Generic point of load

3 Description

The TPS62830x is an easy-to-use, synchronous,

step-down, DC/DC converters family with low

quiescent current. Based on the DCS-Control

topology, TPS62830x provides a fast transient

response with small output capacitance. The internal

reference allows to regulate the output voltage down

to 0.5V with a high feedback voltage accuracy of

1 over the junction temperature range of –40°C to

125°C. The family is available in two packages and

each package devices are pin-to-pin compatible.

The TPS62830x 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. TPS62830x is able to operate in 100

mode. For fault protection, TPS62830x incorporates

a HICCUP short-circuit protection as well as a

thermal shutdown. One device option has a latch-off

protection for short circuit as well as overvoltage

incidents. The family is available in two packages:

an 8-pin 1.0mm × 2.0mm QFN package, offering

the highest power density design, and an 8-pin

1.6mm × 2.1mm SOT583 package, offering an easyto-

assemble designs.