TPS628511

ACTIVE

2.7-V to 6-V, 1-A, fixed-frequency, step-down converter in SOT583 package

Texas Instruments TPS628511 Product Info

1 April 2026 2

Parameters

Rating	Catalog
Topology	Buck
Iout (max) (A)	1
Vin (max) (V)	6
Vin (min) (V)	2.7
Vout (max) (V)	5.5
Vout (min) (V)	0.6
Features	Adjustable soft start, Enable, Forced PWM, Frequency synchronization, Light load efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Soft-start adjustable, Synchronous Rectification, Tracking, UVLO adjustable
EMI features	Spread Spectrum
Control mode	current mode
Operating temperature range (°C)	-40 to 150
Iq (typ) (A)	0.000017
Duty cycle (max) (%)	100
TI functional safety category	Functional Safety-Capable

Package

SOT-5X3 (DRL)-8-3.36 mm² 2.1 x 1.6

Features

Functional Safety-Capable
- Documentation available to aid functional safety system design
Input voltage range: 2.7 V to 6 V
Output voltage from 0.6 V to 5.5 V
1% feedback voltage accuracy (full temperature range)
T_J = –40°C to +150°C
Family of 0.5-A, 1-A, 2-A (continuous), and 3-A (peak) devices
Switching frequency in PWM: 2.25 MHz
External synchronization from 1.8 MHz to 4 MHz
Forced PWM or PWM/PFM operation
Quiescent current: 17 µA (typical)
Adjustable soft start-up to 10 ms
Precise ENABLE input allows:
- User-defined undervoltage lockout
- Exact sequencing
100% duty cycle mode
Active output discharge
Power-good output with window comparator
For device options with selectable compensation, see the TPS628501

Functional Safety-Capable
- Documentation available to aid functional safety system design
Input voltage range: 2.7 V to 6 V
Output voltage from 0.6 V to 5.5 V
1% feedback voltage accuracy (full temperature range)
T_J = –40°C to +150°C
Family of 0.5-A, 1-A, 2-A (continuous), and 3-A (peak) devices
Switching frequency in PWM: 2.25 MHz
External synchronization from 1.8 MHz to 4 MHz
Forced PWM or PWM/PFM operation
Quiescent current: 17 µA (typical)
Adjustable soft start-up to 10 ms
Precise ENABLE input allows:
- User-defined undervoltage lockout
- Exact sequencing
100% duty cycle mode
Active output discharge
Power-good output with window comparator
For device options with selectable compensation, see the TPS628501

Description

The TPS62851x is a family of pin-to-pin 0.5-A, 1-A, 2-A (continuous), and 3-A (peak) high efficiency, easy-to-use, synchronous step-down DC/DC converters. They are based on a peak current mode control topology. Low resistive switches allow up to 2-A continuous output current and 3-A peak current. The switching frequency is internally fixed at 2.25 MHz and can also be synchronized to an external clock in the range from 1.8 MHz to 4 MHz. In PWM/PFM mode, the TPS62851x automatically enters power save mode at light loads to maintain high efficiency across the whole load range. The TPS62851x provide a 1% output voltage accuracy in PWM mode, which helps design a power supply with high output voltage accuracy. The SS/TR pin allows setting the start-up time or tracking the output voltage to an external source, which allows external sequencing of different supply rails and limits the inrush current during start-up.

The TPS62851x is available in an 8-pin 1.60-mm × 2.10-mm SOT583 package, offering a high power density solution.

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ELECTRONIC COMPONENTS
All In One Distributor

TPS628511

2.7-V to 6-V, 1-A, fixed-frequency, step-down converter in SOT583 package

Texas Instruments TPS628511 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS All In One Distributor

TPS628511

2.7-V to 6-V, 1-A, fixed-frequency, step-down converter in SOT583 package

Texas Instruments TPS628511 Product Info

Parameters

Package

Features

Description

SUBMITTED SUCCESSFULLY！

ELECTRONIC COMPONENTS
All In One Distributor