TPS54260-Texas Instruments-集成电路

描述
特点
规格
应用
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描述

The TPS54260 device is a 60-V, 2.5-A, step-down regulator with an integrated high-side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low-ripple, pulse skip mode reduces the no load, regulated output supply current to 138 µA. Using the enable pin, shutdown supply current is reduced to 1.3 µA, when the enable pin is low.

Undervoltage lockout (UVLO) is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow-start pin that can also be configured for sequencing and tracking. An open-drain powergood signal indicates the output is within 94% to 107% of its nominal voltage.

A wide switching frequency range allows efficiency and external component size to be optimized. Frequency foldback and thermal shutdown protects the part during an overload condition.

The TPS54260 is available in 10-pin thermally enhanced MSOP and 10-pin 3-mm × 3-mm SON PowerPAD packages.

特点

3.5-V to 60-V Input Voltage Range

200-mΩ High-Side MOSFET

High Efficiency at Light Loads With a Pulse-Skipping Eco-mode™

138-µA Operating Quiescent Current

1.3-µA Shutdown Current

100-kHz to 2.5-MHz Switching Frequency

Synchronizes to External Clock

Adjustable Slow Start and Sequencing

UV and OV Powergood Output

Adjustable UVLO Voltage and Hysteresis

0.8-V Internal Voltage Reference

10-Pin MSOP and 10-Pin 3-mm × 3-mm VSON With PowerPAD™ Packages

规格

Pins	10
Operating temperature range (°C)	-40 to 125
Topology	Buck
Type	Converter
Iout (max) (A)	2.5
Vin (min) (V)	3.5
Vin (max) (V)	60
Switching frequency (min) (kHz)	100
Switching frequency (max) (kHz)	2500
Features	Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Tracking, UVLO adjustable
Control mode	current mode
Vout (min) (V)	0.8
Vout (max) (V)	58
Iq (typ) (µA)	138
Duty cycle (max) (%)	98