Datasheet > ISL62870

ISL62870

更新时间： 2024-11-13 05:39:43

品牌	Logo	应用领域
英特矽尔 - INTERSIL		稳压器控制器
页数	文件大小	规格书
16页	478K
描述
PWM DC/DC Voltage Regulator Controller

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ISL62870 数据手册

ISL62870

Data Sheet

August 14, 2008

FN6708.0

PWM DC/DC Voltage Regulator Controller

Features

The ISL62870 IC is a Single-Phase Synchronous-Buck

PWM voltage regulator featuring Intersil’s Robust Ripple

Regulator (R ) Technology™. The ISL62870 provides a low

• Input Voltage Range: 3.3V to 25V

• Output Voltage Range: 0.5V to 3.3V

• Output Load to 30A

cost solution for compact high performance applications.The

wide 3.3V to 25V input voltage range is ideal for systems

that run on battery or AC adapter power sources. Resistor

programmed output voltage setpoint and capacitor

programmed soft-start delay allow for fast and easy

implementation. Robust integrated MOSFET drivers and

Schottky bootstrap diode reduce the implementation area and

lower component cost.

• Simple Resistor Programming for Output Voltage

• ±0.75% System Accuracy: -10°C to +100°C

• Capacitor Programming for Soft-Start Delay

• Fixed 300kHz PWM Frequency in Continuous Conduction

• External Compensation Affords Optimum Control Loop

Tuning

Intersil’s R Technology™ combines the best features of

• Automatic Diode Emulation Mode for Highest Efficiency

both fixed-frequency and hysteretic PWM control. The PWM

frequency is 300kHz during static operation, becoming

variable during changes in load, setpoint voltage, and input

voltage when changing between battery and AC adapter

power. The modulators ability to change the PWM switching

frequency during these events in conjunction with external

loop compensation produces superior transient response.

For maximum efficiency, the converter automatically enters

diode-emulation mode (DEM) during light-load conditions

such as system standby.

• Integrated High-Current MOSFET Drivers and Schottky

Boot-Strap Diode for Optimal Efficiency

• Choice of Overcurrent Detection Schemes

- Lossless Inductor DCR Current Sensing

- Precision Resistive Current Sensing

• Power-Good Monitor for Soft-Start and Fault Detection

• Fault Protection

- Undervoltage

- Overvoltage

Pinout

- Overcurrent (DCR-Sense or Resistive-Sense Capability)

- Over-Temperature Protection

- Fault Identification by PGOOD Pull-Down Resistance

ISL62870

(16 LD 2.6X1.8 µTQFN)

TOP VIEW

• Pb-Free (RoHS Compliant)

Applications

• Mobile PC Graphical Processing Unit VCC Rail

• Mobile PC I/O Controller Hub (ICH) VCC Rail

• Mobile PC Memory Controller Hub (GMCH) VCC Rail

GND

BOOT

UGATE

PHASE

OCSET

SREF

Ordering Information

PART NUMBER

(Note)

PART

MARKING

TEMP RANGE

(°C)

PACKAGE

(Pb-Free)

PKG.

DWG. #

ISL62870HRUZ

GAL

-10 to +100

16 Ld 2.6x1.8 µTQFN

L16.2.6x1.8A

ISL62870HRUZ-T*

*Please refer to TB347 for details on reel specifications.

NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and

NiPdAu plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free

products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

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

1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

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

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与ISL62870相关器件

型号	品牌	获取价格	描述	数据表
ISL62870HRUZ	INTERSIL	获取价格	PWM DC/DC Voltage Regulator Controller
ISL62870HRUZ	RENESAS	获取价格	SWITCHING CONTROLLER, 330kHz SWITCHING FREQ-MAX, PQCC16, 2.60 X 1.80 MM, ROHS COMPLIANT, P
ISL62870HRUZ-T	INTERSIL	获取价格	PWM DC/DC Voltage Regulator Controller
ISL62871	INTERSIL	获取价格	PWM DC/DC Controller With VID Inputs For Portable GPU Core-Voltage Regulator
ISL62871	RENESAS	获取价格	PWM DC/DC Controller With VID Inputs for Portable GPU Core-Voltage Regulator
ISL62871HRUZ	INTERSIL	获取价格	PWM DC/DC Controller With VID Inputs For Portable GPU Core-Voltage Regulator
ISL62871HRUZ-T	INTERSIL	获取价格	PWM DC/DC Controller With VID Inputs For Portable GPU Core-Voltage Regulator
ISL62871HRUZ-T7	RENESAS	获取价格	SWITCHING CONTROLLER
ISL62872HRUZ	INTERSIL	获取价格	PWM DC/DC Controller With VID Inputs For Portable GPU Core-Voltage Regulator
ISL62872HRUZ-T	INTERSIL	获取价格	PWM DC/DC Controller With VID Inputs For Portable GPU Core-Voltage Regulator

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