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参数资料
| 型号： | MAX8654ETX+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/17页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 8A 36TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.6 V ~ 11.9 V |
| 输入电压： | 4.5 V ~ 14 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 500kHz ~ 1MHz |
| 电流 - 输出： | 8A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 36-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 36-TQFN 裸露焊盘（6x6） |
12V, 8A 1.2MHz
Step-Down Regulator
INPUT
4.5V TO 14V
10 μ F
10 μ F
0.1 μ F
IN
VP
MAX8654
BST
LX
0.22 μ F
1.0 μ H
OUTPUT
3.3V, 8A
VL
VL
PGND
2 x 22 μ F
1nF
1 μ F
VDL
4.99k ?
100 ?
2.2 μ F
FB
FREQ
ILIM
3.57k ?
1.1k ?
100k ?
75k ?
REFIN
SS
COMP
10nF
22pF
0.022 μ F
IN
EN
GND
SYNC
SYNCOUT
PWRGD
20k ?
VL
Figure 1. Typical Application Circuit, 3.3V, 8A, 500kHz
Detailed Description
The MAX8654 high-efficiency, voltage-mode switching
regulator is capable of delivering up to 8A of output
current. The MAX8654 provides output voltages from
0.6V to 0.85 x V IN from 4.5V to 14V input supplies, mak-
ing them ideal for on-board point-of-load applications.
The output voltage accuracy is better than ±1% over
temperature.
The MAX8654 allows for all ceramic-capacitor designs
and faster transient responses. The device is available in
a 6mm x 6mm 36-pin TQFN-EP package. The SYNCOUT
function allows end users to operate two MAX8654s at
the same switching frequency with 180° out-of-phase
operation to minimize the input ripple current, conse-
quently reducing the input capacitance requirements.
The REFIN function makes the MAX8654 an ideal candi-
date for DDR and tracking power supplies. Using inter-
nal low R DS(ON) n-channel MOSFETs for both high- and
low-side switches maintains high efficiency at both heavy
load and high switching frequencies.
The MAX8654 uses voltage-mode control architecture
with a high-bandwidth (20MHz) error amplifier. The volt-
age-mode control architecture allows up to 1.2MHz
switching, reducing board area. The op-amp voltage
error amplifier works with type 3 compensation to fully
utilize the bandwidth of the high-frequency switching to
obtain fast transient response. Adjustable soft-start time
provides flexibility to minimize input startup inrush cur-
rent. The open-drain power-good (PWRGD) output
goes high impedance when the output reaches 90% of
its regulation point.
10
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相关代理商/技术参数 |
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|---|---|
| MAX8654EVKIT+ | 功能描述:电源管理IC开发工具 MAX8654 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MAX8655ETN/GG8 | 功能描述:直流/直流开关调节器 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 |
| MAX8655ETN+ | 功能描述:直流/直流开关调节器 25A Int MOSFET Step-Down Regulator 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 |
| MAX8655ETN+T | 功能描述:直流/直流开关调节器 25A Int MOSFET Step-Down Regulator 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 |
| MAX8655ETN+TW | 功能描述:直流/直流开关调节器 25A Int MOSFET Step-Down Regulator 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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