Features

• Fixed output voltage choices: 1.5V, 1.8V, 2.5V, 3.3V, and 5V

with +/- 2 output tolerance

• Adjustable version output voltage range: 0.9V to (VCC -

1V) with +/- 1.5 reference

• Wide input voltage range: 4.5V to 40V (42V Abs Max)

• 1MHz +/- 10 ! xed switching frequency

• Continuous output current: 1A (TS30041), 2A (TS30042)

• High e ciency up to 95

• Current mode PWM control with PFM mode for improved

light load e ciency

• Voltage supervisor for VOUT reported at the Power Good

(PG) pin

• Input supply under voltage lockout

• Soft start for controlled startup with no overshoot

• Full protection for over-current, over-temperature, and

VOUT over-voltage

• SYNC function on EN/SYNC pin to control switching frequency

• Less than 10uA in standby mode

• Low external component count

Description

The TS30041 (1A) and TS30042 (2A) are DC/DC synchronous

switching regulators with fully integrated power switches,

internal compensation, and full fault protection. The switching

frequency of 1MHz enables the use of small ! lter components

resulting in minimal board space and reduced BOM costs.

The TS30041/42 utilizes current mode feedback in normal

regulation PWM mode. When the regulator is placed in

standby (EN is low), the device draws less than 10uA quiescent

current.

The TS30041/42 integrates a wide range of protection circuitry

including input supply under-voltage lockout, output voltage

soft start, current limit, and thermal shutdown.

The TS30041/42 includes supervisory reporting through

the PG (Power Good) open drain output to interface other

components in the system.

Applications

• On-card switching regulators

• Set-top box, DVD, LCD, LED supply

• Industrial power supplies