Datasheet > ISL6545IRZ-T

ISL6545IRZ-T

更新时间： 2024-11-29 14:42:55

品牌	Logo	应用领域
瑞萨 - RENESAS		开关光电二极管输出元件
页数	文件大小	规格书
16页	370K
描述
5V or 12V Single Synchronous Buck Pulse-Width Modulation (PWM) Controller; DFN10, SOIC8; Temp Range: See Datasheet

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ISL6545IRZ-T 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	DFN, SOIC	包装说明：	HVSON, SOLCC10,.12,20
针数：	10, 8	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.12	其他特性：	ALSO ADJUSTABLE OUTPUT FROM 0.6 TO 5.5, ALSO OPERATES ON 12V OR 6.5V TO 14.4V SUPPLY
模拟集成电路 - 其他类型：	SWITCHING CONTROLLER	控制模式：	VOLTAGE-MODE
控制技术：	PULSE WIDTH MODULATION	最大输入电压：	5.5 V
最小输入电压：	4.5 V	标称输入电压：	5 V
JESD-30 代码：	S-PDSO-N10	JESD-609代码：	e3
长度：	3 mm	湿度敏感等级：	3
功能数量：	1	端子数量：	10
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	HVSON
封装等效代码：	SOLCC10,.12,20	封装形状：	SQUARE
封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified	座面最大高度：	1 mm
子类别：	Switching Regulator or Controllers	表面贴装：	YES
切换器配置：	PUSH-PULL	最大切换频率：	330 kHz
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn) - annealed
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	40
宽度：	3 mm	Base Number Matches：	1

ISL6545IRZ-T 数据手册

ISL6545, ISL6545A

March 3, 2011

Data Sheet

FN6305.6

5V or 12V Single Synchronous Buck

Features

Pulse-Width Modulation (PWM) Controller

• Operates from +5V or +12V Supply Voltage (for bias)

The ISL6545, ISL6545A makes simple work out of

implementing a complete control and protection scheme for a

DC/DC stepdown converter driving N-Channel MOSFETs in a

synchronous buck topology. Since it can work with either 5V or

12V supplies, this one IC can be used in a wide variety of

applications within a system. The ISL6545, ISL6545A

(hereafter referred to as “ISL6545x”, except as needed)

integrates the control, gate drivers, output adjustment,

monitoring and protection functions into a single 8 Ld SOIC or

10 Ld DFN package.

- 1.0V to 12V V Input Range (up to 20V possible with

restrictions; see Input Voltage Considerations)

- 0.6V to V Output Range

- Integrated Gate Drivers use V

(5V to 12V)

- 0.6V Internal Reference; ±1.0% tolerance

• Simple Single-Loop Control Design

- Voltage-Mode PWM Control

- Drives N-Channel MOSFETs

- Traditional Dual Edge Modulator

• Fast Transient Response

The ISL6545x provides single feedback loop, voltage-mode

control with fast transient response. The output voltage can be

precisely regulated to as low as 0.6V, with a maximum

tolerance of ±1.0% over-temperature and line voltage

variations. A selectable fixed frequency oscillator (ISL6545 for

300kHz; ISL6545A for 600kHz) reduces design complexity,

while balancing typical application cost and efficiency.

- High-Bandwidth Error Amplifier

- Full 0% to 100% Duty Cycle

• Lossless, Programmable Overcurrent Protection

- Uses Lower MOSFET’s r

DS(ON)

• Small Converter Size in 8 Ld SOIC or 10 Ld DFN

- 300kHz or 600kHz Fixed Frequency Oscillator

The error amplifier features a 20MHz gain-bandwidth

product and 9V/µs slew rate which enables high converter

bandwidth for fast transient performance. The resulting

PWM duty cycles range from 0% to 100%.

- Fixed Internal Soft-Start, Capable into a Pre-biased

Load

- Integrated Boot Diode

- Enable/Shutdown Function on COMP/SD Pin

- Output Current Sourcing and Sinking

Protection from overcurrent conditions is provided by

monitoring the r

of the lower MOSFET to inhibit PWM

DS(ON)

• Pb-Free (RoHS Compliant)

operation appropriately. This approach simplifies the

implementation and improves efficiency by eliminating the

need for a current sense resistor.

Applications

• Power Supplies for Microprocessors or Peripherals

- PCs, Embedded Controllers, Memory Supplies

- DSP and Core Communications Processor Supplies

Pinout

ISL6545, ISL6545A

(8 LD SOIC)

• Subsystem Power Supplies

TOP VIEW

- PCI, AGP; Graphics Cards; Digital TV

PHASE

COMP/SD

BOOT

UGATE

- SSTL-2 and DDR/DDR2/DDR3 SDRAM Bus

Termination Supply

GND

• Cable Modems, Set Top Boxes, and DSL Modems

• Industrial Power Supplies; General Purpose Supplies

• 5V or 12V-Input DC/DC Regulators

LGATE/OCSET

VCC

ISL6545, ISL6545A

(10 LD 3x3 DFN)

TOP VIEW

• Low-Voltage Distributed Power Supplies

BOOT

PHASE

UGATE

COMP/SD

GND

N/C

GND

N/C

LGATE/OCSET

VCC

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

12 3 4 5 6 7...16

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