参数资料
| 型号： | ISL62883IRTZ-T |
| 厂商： | Intersil |
| 文件页数： | 27/37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) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页当前第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页
ISL62883, ISL62883B
TABLE 5. LAYOUT CONSIDERATION (Continued)
TABLE 5. LAYOUT CONSIDERATION (Continued)
PIN
14
15
NAME
ISUM-
ISUM+
LAYOUT CONSIDERATION
Place the current sensing circuit in general
proximity of the controller.
Place C82 very close to the controller.
Place NTC thermistors R42 next to Phase-1
inductor (L1) so it senses the inductor temperature
correctly.
Each phase of the power stage sends a pair of
VSUM+ and VSUM- signals to the controller. Run
these two signals traces in parallel fashion with
decent width (>20mil).
IMPORTANT: Sense the inductor current by routing
the sensing circuit to the inductor pads.
Route R63 and R71 to the Phase-1 side pad of
PIN
25
26
27
28
29
NAME
VCCP
LGATE2
VSSP2
PHASE2
UGATE2
LAYOUT CONSIDERATION
A capacitor (C22) decouples it to GND. Place it in
close proximity of the controller.
Run these two traces in parallel fashion with
decent width (>30mil). Avoid any sensitive analog
signal trace from crossing over or getting close.
Recommend routing VSSP2 to the Phase-2 low-
side MOSFET (Q5 and Q1) source pins instead of
general power ground plane for better
performance.
Run these two traces in parallel fashion with
decent width (>30mil). Avoid any sensitive analog
signal trace from crossing over or getting close.
inductor L1. Route R88 to the output side pad of
inductor L1.
Route R65 and R72 to the Phase-2 side pad of
Recommend routing PHASE2 trace to the Phase-2
high-side MOSFET (Q4 and Q10) source pins
instead of general Phase-2 node copper.
inductor L2. Route R90 to the output side pad of
inductor L2.
Route R67 and R73 to the Phase-3 side pad of
inductor L3. Route R92 to the output side pad of
inductor L3.
30
31~37
BOOT2
VID0~6
Use decent wide trace (>30mil). Avoid any
sensitive analog signal trace from crossing over or
getting close.
No special consideration.
If possible. Route the traces on a different layer
from the inductor pad layer and use vias to
connect the traces to the center of the pads. If no
38
39
VR_ON No special consideration.
DPRSLPVR No special consideration.
via is allowed on the pad, consider routing the
traces into the pads from the inside of the
inductor. The following drawings show the two
preferred ways of routing current sensing traces.
40 CLK_EN# No special consideration.
Other Phase Node Minimize phase node copper area. Don’t let the
phase node copper overlap with/getting close to
other sensitive traces. Cut the power ground plane
Inductor
Inductor
Other
to avoid overlapping with phase node copper.
Minimize the loop consisting of input capacitor,
high-side MOSFETs and low-side MOSFETs (e.g.:
Vias
Current-Sensing
Traces
Current-Sensing
Traces
C27, C33, Q2, Q8, Q3 and Q9).
16
17
18
19
20
21
22
23
24
VDD
VIN
IMON
BOOT1
UGATE1
PHASE1
VSSP1
LGATE1
PWM3
A capacitor (C16) decouples it to GND. Place it in
close proximity of the controller.
A capacitor (C17) decouples it to GND. Place it in
close proximity of the controller.
Place the filter capacitor (C21) close to the CPU.
Use decent wide trace (>30mil). Avoid any
sensitive analog signal trace from crossing over or
getting close.
Run these two traces in parallel fashion with
decent width (>30mil). Avoid any sensitive analog
signal trace from crossing over or getting close.
Recommend routing PHASE1 trace to the Phase-1
high-side MOSFET (Q2 and Q8) source pins instead
of general
Phase-1 node copper.
Run these two traces in parallel fashion with
decent width (>30mil). Avoid any sensitive analog
signal trace from crossing over or getting close.
Recommend routing VSSP1 to the Phase-1 low-
side MOSFET (Q3 and Q9) source pins instead of
general power ground plane for better
performance.
No special consideration.
27
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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