TPS62830x, 2.25-V to 5.5-V Input, 1-, 2-, 3-, 4-A Step-Down Converter With 1% Output

Accuracy in Small WQFN and SOT583 Packages

1 Features

• Available as an integrated-inductor power module

• 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 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 0.5 V 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 soft-

start 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 1.0-mm × 2.0-mm QFN package, offering

the highest power density design, and an 8-pin 1.6-

mm × 2.1-mm SOT583 package, offering an easy-to-

assemble designs.

Package Information

PART NUMBER

PACKAGE(1)

PACKAGE SIZE(2)

TPS62830x

RZE (WQFN, 8)

1 mm × 2 mm

DRL (SOT583, 8) 2.1 mm × 1.6 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

(2)

The package size (length × width) is a nominal value and

includes pins, where applicable

Device Information

PART

NUMBER(1)

OUTPUT

CURRENT

OCP MODE

TPS62830xA

1 A, 2 A, 3 A, 4 A Hiccup

TPS62830xB

3 A

OCP/OVP latch-off

(1)

See the Device Options table.

R1

523 k

R2

200 k

SW

GND

FB

EN

PG

VIN

C2

2 x 10 µF

R3

100 k

C1

4.7 µF

VIN

2.25 V to 5.5 V

VPG

VOUT

1.8 V

L1

0.47 µH

TPS62830x

VOS

MODE

Typical Application Schematic

Load [A]

60

65

70

75

80

85

90

95

100

100



1m

10m

100m

1

4

VOUT=1.2V

VOUT=1.8V

VOUT=2.5V

VOUT=3.3V

Efficiency at VIN = 5 V

TPS628301, TPS628302, TPS628303, TPS628304

SLVSG98A – FEBRUARY 2023 – REVISED OCTOBER 2023

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.