参数资料
| 型号： | ISL62875HRUZ-T |
| 厂商： | Intersil |
| 文件页数： | 1/22页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 20UTQFN |
| 标准包装： | 3,000 |
| 系列： | Robust Ripple Regulator™ (R³) |
| PWM 型： | 控制器 |
| 输出数： | 1 |
| 频率 - 最大： | 550kHz |
| 电源电压： | 4.75 V ~ 5.25 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -10°C ~ 100°C |
| 封装/外壳： | 20-UFQFN |
| 包装： | 带卷 (TR) |
PWM DC/DC Controller with VID Inputs for
Portable GPU Core-Voltage Regulator
ISL62875
The ISL62875 is a Single-Phase Synchronous-Buck
PWM voltage regulator featuring Intersil’s Robust Ripple
Regulator (R 3 ) Technology?. The wide 3.3V to 25V
input voltage range is ideal for systems that run on
battery or AC-adapter power sources. The ISL62875 is a
low-cost solution for applications requiring dynamically
selected slew-rate controlled output voltages. The
soft-start and dynamic setpoint slew-rates are capacitor
programmed. Voltage identification logic-inputs select
four resistor-programmed setpoint reference voltages
that directly set the output voltage of the converter
between 0.5V to 1.5V, and up to 3.3V using a feedback
voltage divider. Robust integrated MOSFET drivers and
Schottky bootstrap diode reduce the implementation
area and component cost.
Intersil’s R 3 Technology? combines the best features of
both fixed-frequency and hysteretic PWM control. The
PWM frequency is 500kHz 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.
Features
? Input Voltage Range: 3.3V to 25V
? Output Voltage Range: 0.5V to 3.3V
? Output Load up to 30A
? Extremely Flexible Output Voltage Programmability
- 2-Bit VID Selects Four Independent Setpoint
Voltages
- Simple Resistor Programming of Setpoint Voltages
- Accepts External Setpoint Reference such as DAC
? ±0.75% System Accuracy: -10°C to +100°C
? Fixed 500kHz PWM Frequency in Continuous
Conduction
? Integrated High-current MOSFET Drivers and
Schottky Boot-Strap Diode for Optimal Efficiency
Applications* (see page 21)
? Mobile PC GPU Core Power
? Mobile PC I/O Controller Hub (ICH) VCC Rail
? Tablet PCs/Slates and Netbooks
? Hand-Held Portable Instruments
Related Literature* (see page 21)
Typical Application
+5V
V IN
3.3V TO 25V
GPIO
C PVCC
2
3
4
5
6
7
8
9
1
PGND
GND
EN
VID1
VID0
SREF
SET0
SET1
20
VCC
BOOT
UGATE
PHASE
OCSET
VO
FB
19
18
17
16
14
13
12
C VCC
C BOOT
QHS
QLS
LO
C OCSET
RO
CIN
V OUT
0.5V TO 3.3V
COUT
10 11
V CC
R COMP
C COMP
R SET1 R SET2 R SET3
R FB
GPIO
FN6905.1
September 18, 2009
1
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.
Copyright Intersil Americas Inc. 2009. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL62881 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Single-Phase PWM Regulator for IMVP-6.5? Mobile CPUs and GPUs |
| ISL62881_10 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Single-Phase PWM Regulator for IMVP-6.5a?￠ Mobile CPUs and GPUs |
| ISL62881B | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Single-Phase PWM Regulator for IMVP-6.5? Mobile CPUs and GPUs |
| ISL62881BHRTZ | 功能描述:直流/直流开关调节器 1 PHS CNTRLR W/INTEG DRVR 32LD 5X5 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| ISL62881BHRTZ-T | 功能描述:直流/直流开关调节器 1 PHS CNTRLR W/INTEG DRVR 32LD 5X5 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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