UNI SONI C TECHNOLOGI ES CO., LTD

P4596

Preliminary

LINEAR INTEGRATED CIRCUIT

www.unisonic.com.tw

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Copyright © 2016 Unisonic Technologies Co., Ltd

QW-R103-064.d

PWM CON T ROL 3 A

ST EP-DOWN CON V ERT ER



DESCRI PT I ON

The UTC P4596 consists of 3A step-down switching regulator

with PWM control which includes a reference voltage source,

oscillation circuit, error amplifier, internal PMOS and etc.

The UTC P4596 can provide low-ripple power, high efficiency,

and excellent transient characteristics and an enable function, an

over current protect function and a short circuit protect function

are built inside, And the PWM control circuit can vary the duty

ratio linearly from 100 down to 0%. This converter also includes

an error amplifier circuit as well as a soft-start circuit that prevents

overshoot at startup. These ICs can work as step-down switching

regulators with the addition of an internal P-channel Power MOS,

a coil and a diode connected externally. They provide such

outstanding features: low current consumption. It is also suitable

for the operation via an AC adapter because this converter can

accommodate an input voltage up to 40V.



FEAT U RES

* Input voltage

：8V~40V

* Duty ratio

：0%~100% PWM control

* Enable with Soft-Start function

* Oscillation frequency can be set by outside resistance

* Current Limit, SCP and OTP

HSOP-8



ORDERI N G I N FORM AT I ON

Ordering Number

Package

Packing

P4596G-SH2-R

HSOP-8

Tape Reel

(1) R: Tape Reel

(2) SH2: HSOP-8

(3) G: Halogen Free and Lead Free

P4596G-SH2-R

(1)Packing Type

(2)Package Type

(3)Green Package

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M ARK I N G