TPS6293X中文資料德州儀器數(shù)據(jù)手冊(cè)PDF規(guī)格書

1 Features

? Configured for a wide range of applications

– 3.8-V to 30-V input voltage range

– 0.8-V to 22-V output voltage range

– Ultra-low quiescent current: 12 μA (TPS62932,

TPS62933, and TPS62933P)

– Integrated 76-mΩ and 32-mΩ MOSFETs

– 0.8 V ± 1 reference voltage (25°C)

– Maximum 98 duty cycle operation

– Precision EN threshold

– 2-A (TPS62932) and 3-A (TPS62933 and

TPS62933x) continuous output current

– –40°C to 150°C operating junction temperature

? Numerous pin-compatible options

– TPS62932, TPS62933, and TPS62933F with

the SS pin for adjustable soft-start time

– TPS62933P and TPS62933O with the PG pin

for a power-good indicator

– TPS62932, TPS62933, and TPS62933P with

pulse frequency modulation (PFM) for high

light-load efficiency

– TPS62933F with forced continuous current

modulation (FCCM)

– TPS62933O with out-of-audio (OOA) feature

? Ease of use and small solution size

– Peak current control mode with internal

compensation

– 200-kHz to 2.2-MHz selectable frequency

– EMI friendly with frequency spread spectrum

(TPS62932, TPS62933, TPS62933P and

TPS62933O)

– Supports start-up with prebiased output

– Cycle-by-cycle OC limit for both high-side and

low-side MOSFETs

– Non-latched protections for OTP, OCP, OVP,

UVP, and UVLO

– 1.6-mm × 2.1-mm SOT583 package

? Create a custom design with the TPS6293x using

the WEBENCH? Power Designer

2 Applications

? Building automation, appliances, industrial PC

? Multifunction printers, enterprise projectors

? Portable electronics, connected peripherals

? Smart speakers, monitors

? Distributed power systems with 5-V, 12-V, 19-V,

and 24-V input

3 Description

The TPS6293x is a high-efficiency, easy-to-use

synchronous buck converter with a wide input voltage

range of 3.8 V to 30 V, and supports up to 2-A

(TPS62932) and 3-A (TPS62933 and TPS62933x)

continuous output current and 0.8-V to 22-V output

voltage.

The device employs fixed-frequency peak current

control mode for fast transient response and good

line and load regulation. The optimized internal

loop compensation eliminates external compensation

components.

The TPS62932, TPS62933, and TPS62933P operate

in pulse frequency modulation for high light load

efficiency. The TPS62933F operates in forced

continuous current modulation which maintains

lower output ripple during all load conditions. The

TPS62933O operates in out of audio mode to avoid

audible noise.