Datasheet > ISL8130

ISL8130

更新时间： 2023-12-20 18:45:27

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
23页	1613K
描述
Advanced Single Universal Pulse-Width Modulation (PWM) Controller

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ISL8130 数据手册

DATASHEET

ISL8130

FN7954

Rev.4.00

Mar 24, 2017

Advanced Single Universal Pulse-Width Modulation (PWM) Controller

The ISL8130 is a versatile controller that integrates control,

Features

output adjustment, monitoring, and protection functions into a

single package for synchronous Buck, standard Boost, SEPIC,

and Flyback topologies.

• Universal controller for multiple DC/DC converters

• Wide input range

- 4.5V to 5.5V

- 5.5V to 28V

The ISL8130 provides simple, single feedback loop, voltage

mode control with fast transient response. The output voltage

of the converter can be precisely regulated to as low as 0.6V.

The switching frequency is adjustable from 100kHz to 1.4MHz.

• Programmable soft-start

• Supports pre-biased load applications

The error amplifier features a 15MHz gain-bandwidth product

and 6V/µs slew rate that enables fast transient response. The

PWM duty cycle ranges from 0% to 100% in transient

conditions. The capacitor from the ENSS pin to ground sets

soft-start slew rate.

• Resistor-selectable switching frequency

- 100kHz to 1.4MHz

• External reference tracking mode

• Fast transient response

The ISL8130 monitors the output voltage and generates a

power-good (PGOOD) signal when soft-start sequence is

complete and the output is within regulation. A built-in,

overvoltage protection circuit prevents the output voltage from

going above typically 115% of the set point. For a Buck and

Buck-Boost configuration, protection from overcurrent

- High-bandwidth error amplifier

• Extensive circuit protection functions

- Overvoltage, overcurrent, over-temperature

• Pb-free (RoHS compliant)

conditions is provided by monitoring the r

of the upper

DS(ON)

Applications

• Power supplies for microprocessors/ASICs

• Ethernet routers and switchers

• Medical instrument power supplies

MOSFET to inhibit the PWM operation appropriately. This

approach improves efficiency by eliminating the need for a

current sensing resistor. For other topologies, overcurrent

protection is achieved using a current sensing resistor.

Related Literature

• For a full list of related documents, visit our website

- ISL8130 product page

5.6V to 16V

499Ω

VIN VCC5

PVCC

OCSET

ISEN

MONITOR AND

PROTECTION

5mΩ

NSS

10µH

LGATE

BOOT

47.5kΩ

PGOOD

CDEL

OSC

REF

32V

0.1µF

UGATE

PHASE

SGND

220µF x 2

COMP

REFIN

3.32kΩ

REFOUT

470pF

2.2µF

10kΩ

12.1kΩ

47nF

470pF

174kΩ

FIGURE 1. BOOST CONVERTER

FN7954 Rev.4.00

Mar 24, 2017

Page 1 of 23

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