参数资料
| 型号： | ISL62883IRTZ-T |
| 厂商： | Intersil |
| 文件页数： | 3/37页 |
| 文件大小： | 0K |
| 描述： | IC REG PWM 3PHASE BUCK 40TQFN |
| 标准包装： | 6,000 |
| 应用： | 控制器，Intel IMVP-6.5? |
| 输入电压： | 5 V ~ 21 V |
| 输出数： | 1 |
| 输出电压： | 0.013 V ~ 1.5 V |
| 工作温度： | -40°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 供应商设备封装： | 40-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
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ISL62883, ISL62883B
Pin Function Descriptions
GND
Signal common of the IC. Unless otherwise stated, signals are
referenced to the GND pin.
PGOOD
Power-Good open-drain output indicating when the regulator is
able to supply regulated voltage. Pull-up externally with a 680 Ω
resistor to VCCP or 1.9k Ω to 3.3V.
PSI#
Low load current indicator input. When asserted low, indicates a
reduced load-current condition. For ISL62883, when PSI# is
asserted low, PWM3 will be disabled.
RBIAS
147k resistor to GND sets internal current reference.
VR_TT#
Thermal overload output indicator.
NTC
Thermistor input to VR_TT# circuit.
VW
A resistor from this pin to COMP programs the switching
frequency (8k Ω gives approximately 300kHz).
COMP
This pin is the output of the error amplifier. Also, a resistor across
this pin and GND adjusts the overcurrent threshold.
FB
This pin is the inverting input of the error amplifier.
ISEN3/FB2
When the ISL62883 is configured in 3-phase mode, this pin is
ISEN3. ISEN3 is the individual current sensing for phase 3. When
the ISL62883 is configured in 2-phase mode, this pin is FB2.
There is a switch between the FB2 pin and the FB pin. The switch
is on in 2-phase mode and is off in 1-phase mode. The
components connecting to FB2 are used to adjust the
compensation in 1-phase mode to achieve optimum
performance.
ISEN2
Individual current sensing for Phase-2. When ISEN2 is pulled to
5V VDD, the controller will disable Phase-2 and allow other
phases to operate.
ISEN1
Individual current sensing for Phase-1.
VSEN
Remote core voltage sense input. Connect to microprocessor die.
3
RTN
Remote voltage sensing return. Connect to ground at
microprocessor die.
ISUM- and ISUM+
Droop current sense input.
VDD
5V bias power.
VIN
Battery supply voltage, used for feed-forward.
IMON
An analog output. IMON outputs a current proportional to the
regulator output current.
BOOT1
Connect an MLCC capacitor across the BOOT1 and the PHASE1
pins. The boot capacitor is charged through an internal boot
diode connected from the VCCP pin to the BOOT1 pin, each time
the PHASE1 pin drops below VCCP minus the voltage dropped
across the internal boot diode.
UGATE1
Output of the Phase-1 high-side MOSFET gate driver. Connect the
UGATE1 pin to the gate of the Phase-1 high-side MOSFET.
PHASE1
Current return path for the Phase-1 high-side MOSFET gate driver.
Connect the PHASE1 pin to the node consisting of the high-side
MOSFET source, the low-side MOSFET drain, and the output
inductor of Phase-1.
VSSP1
Current return path for the Phase-1 low-side MOSFET gate driver.
Connect the VSSP1 pin to the source of the Phase-1 low-side
MOSFET through a low impedance path, preferably in parallel
with the trace connecting the LGATE1 pin to the gate of the
Phase-1 low-side MOSFET.
LGATE1
Output of the Phase-1 low-side MOSFET gate driver. Connect the
LGATE1 pin to the gate of the Phase-1 low-side MOSFET.
PWM3
PWM output for Channel 3. When PWM3 is pulled to 5V VDD, the
controller will disable Phase-3 and allow other phases to operate.
VCCP
Input voltage bias for the internal gate drivers. Connect +5V to
the VCCP pin. Decouple with at least 1μF of an MLCC capacitor to
VSSP1 and VSSP2 pins respectively.
LGATE2
Output of the Phase-2 low-side MOSFET gate driver. Connect the
LGATE2 pin to the gate of the Phase-2 low-side MOSFET.
FN6891.4
June 21, 2011
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL62884C | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Single-Phase PWM Regulator for IMVP-6a?￠ Mobile CPUs |
| ISL62884CEVAL2Z | 功能描述:EVAL BOARD FOR ISL62884C RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| ISL62884CHRTZ | 功能描述:直流/直流开关调节器 1-PHS PWM BUCKG FOR MICROPROC PWR SUPPLY 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 |
| ISL62884CHRTZ-T | 功能描述:直流/直流开关调节器 1-PHS PWM BUCKG FOR MICROPROC PWR SUPPLY 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 |
| ISL62884CIRTZ | 功能描述:直流/直流开关调节器 1-PHS PWM BUCKG FOR MICROPROC PWR SUPPLY 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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