参数资料
| 型号： | ISL62875HRUZ-T |
| 厂商： | Intersil |
| 文件页数： | 20/22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) |
ISL62875
FB, SREF, SET0, SET1, AND SET2 PINS
The input impedance of these pins is high, making it
critical to place the loop compensation components,
setpoint reference programming resistors, feedback
voltage divider resistors, and CSOFT close to the IC,
keeping the length of the traces short.
LGATE, PGND, UGATE, BOOT, AND PHASE PINS
The signals going through these traces are boht high
dv/dt and di/dt, with high peak charging and discharging
current. The PGND pin can only flow current from the
gate-source charge of the low-side MOSFETs when
LGATE goes low. Ideally, route the trace from the LGATE
pin in parallel with the trace from the PGND pin, route
the trace from the UGATE pin in parallel with the trace
from the PHASE pin, and route the trace from the BOOT
pin in parallel with the trace from the PHASE pin. These
pairs of traces should be short, wide, and away from
other traces with high input impedance; weak signal
traces should not be in proximity with these traces on
any layer.
20
Copper Size for the Phase Node
The parasitic capacitance and parasitic inductance of the
phase node should be kept very low to minimize ringing.
It is best to limit the size of the PHASE node copper in
strict accordance with the current and thermal
management of the application. An MLCC should be
connected directly across the drain of the upper MOSFET
and the source of the lower MOSFET to suppress the
turn-off voltage.
September 18, 2009
FN6905.1
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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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