Datasheet > ISL6520A

ISL6520A

更新时间： 2023-12-20 18:45:13

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
12页	666K
描述
Single Synchronous Buck Pulse-Width Modulation (PWM) controller

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ISL6520A 数据手册

DATASHEET

ISL6520A

FN9016

Rev 6.00

Dec 10, 2009

Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

The ISL6520A makes simple work out of implementing a

complete control and protection scheme for a DC/DC

stepdown converter. Designed to drive N-Channel

MOSFETs in a synchronous buck topology, the ISL6520A

integrates the control, output adjustment, monitoring and

protection functions into a single 8 Lead package.

Features

• Operates from +5V Input

• 0.8V to V Output Range

- 0.8V Internal Reference

- ±1.5% Over Line Voltage and Temperature

The ISL6520A provides simple, single feedback loop,

voltage-mode control with fast transient response. The

output voltage can be precisely regulated to as low as 0.8V,

with a maximum tolerance of ±1.5% over-temperature and

line voltage variations. A fixed frequency oscillator reduces

design complexity, while balancing typical application cost

and efficiency.

• Drives N-Channel MOSFETs

• Simple Single-Loop Control Design

- Voltage-Mode PWM Control

• Fast Transient Response

- High-Bandwidth Error Amplifier

- Full 0% to 100% Duty Cycle

The error amplifier features a 15MHz gain-bandwidth

product and 8V/ms slew rate which enables high converter

bandwidth for fast transient performance. The resulting

PWM duty cycles range from 0% to 100%.

• Lossless, Programmable Overcurrent Protection

- Uses Upper MOSFET’s r

DS(ON)

• Small Converter Size

- 300kHz Fixed Frequency Oscillator

- Internal Soft-Start

Protection from overcurrent conditions is provided by

monitoring the r

of the upper MOSFET to inhibit PWM

DS(ON)

- 8 Ld SOIC or 16 Ld 4mmx4mm QFN

operation appropriately. This approach simplifies the

implementation and improves efficiency by eliminating the

need for a current sense resistor.

• QFN Package:

- Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat

No Leads - Package Outline

Pinouts

ISL6520A

- Near Chip Scale Package footprint, which improves

PCB efficiency and has a thinner profile

(8 LD SOIC)

TOP VIEW

• Pb-Free (RoHS Compliant)

BOOT

UGATE

GND

PHASE

COMP/SD

Applications

• Power Supplies for Microprocessors

- PCs

LGATE

VCC

- Embedded Controllers

• Subsystem Power Supplies

- PCI/AGP/GTL+ Buses

ISL6520A

(16 LD QFN)

TOP VIEW

- ACPI Power Control

- SSTL-2 and DDR SDRAM Bus Termination Supply

• Cable Modems, Set Top Boxes, and DSL Modems

• DSP and Core Communications Processor Supplies

• Memory Supplies

16 15 14 13

BOOT

12 NC

UGATE

GND

11 COMP/OCSET

10 NC

• Personal Computer Peripherals

• Industrial Power Supplies

• 5V-Input DC/DC Regulators

• Low-Voltage Distributed Power Supplies

FN9016 Rev 6.00

Dec 10, 2009

Page 1 of 12

12 3 4 5 6 7...12

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ISL6520A_07	INTERSIL	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller	获取价格
ISL6520ACB	INTERSIL	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller	获取价格
ISL6520ACB	RENESAS	SWITCHING CONTROLLER, 340kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, MS-012-AA, SOIC-8	获取价格
ISL6520ACB-T	INTERSIL	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller	获取价格
ISL6520ACB-T	ROCHESTER	SWITCHING CONTROLLER, 340 kHz SWITCHING FREQ-MAX, PDSO8, PLASTIC, MS-012-AA, SOIC-8	获取价格
ISL6520ACBZ	INTERSIL	Single Synchronous Buck Pulse-Width Modulation (PWM) Controller	获取价格

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