参数资料
型号: MAX8686ETL+T
厂商: Maxim Integrated Products
文件页数: 9/23页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 25A 40TQFN
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: 0.7 V ~ 5.5 V
输入电压: 4.5 V ~ 20 V
PWM 型: 电流模式
频率 - 开关: 300kHz ~ 1MHz
电流 - 输出: 25A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 40-WFQFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 40-TQFN-EP(6x6)
Single/Multiphase, Step-Down,
DC-DC Converter Delivers Up to 25A Per Phase
Pin Description (continued)
PIN
33
34
35
36
NAME
FREQ
SS
ILIM
REFIN
FUNCTION
Frequency-Setting Input. Connect a capacitor from FREQ to GFREQ to set the switching frequency.
The triangle ramp runs between 0 and AVL/2. In multiphase applications, connect FREQ of the master
and all slave devices together. FREQ is internally pulled to GFREQ during shutdown.
Soft-Start Input. For master-mode or single-phase operation, connect a capacitor from SS to GND to
set the soft-start time. A 25μA internal current source charges the capacitor. SS is pulled to GND in
shutdown. Connect SS to GND for slave mode operation.
Analog Programmable Current Limit. Connect a resistor from ILIM to GND to set the current limit. A
10μA current source through this resistor sets the current-limit threshold. In multiphase applications,
connect ILIM of the master and all slave devices together.
Voltage Error-Amplifier Reference Input. For master-mode or single-phase operation, connect REFIN to
PHASE/REFO through a resistor-divider to set the output voltage from 0 to 3.3V. To use an external
reference, connect REFIN to the system reference voltage, and use an RC network at REFIN to
implement soft-start if the external reference does not provide this function. Connect REFIN to GND for
slave mode operation.
Phase Selection Input/Reference Voltage Output. For single-phase or master-mode operation, the 3.3V
output with 1% accuracy can be used as a reference voltage. For multiphase operation, connect
37
PHASE/REFO PHASE/REFO of each slave device to the center tap of a resistor-divider from the master AVL to GND.
The resistor values are selected to set phase delay between phases. The PWM cycle starts 60ns after
the rising edge of V FREQ crosses V PHASE .
Compensation and Output of the Voltage-Error Amplifier. Connect a Type II compensation network at
38
39
40
COMP
RS+
RS-
GND_EP
IN_EP
LX_EP
COMP. COMP is internally pulled to GND in shutdown. In multiphase applications, connect COMP of
the master and all slave devices together.
Positive Input of the Output-Voltage Remote Sense. For master-mode or single-phase operation,
connect RS+ to the output-voltage sense point at the load. Connect RS+ to AVL (slave) for slave mode
operation.
Negative Input of the Output-Voltage Remote Sense. For master-mode or single-phase operation,
connect RS- to the remote ground at the load. Connect RS- to AVL (slave) for slave mode operation.
Ground Exposed Paddle. Connect GND_EP to GND.
Input Exposed Paddle. Connect IN_EP to IN.
LX Exposed Paddle. Connect LX_EP to LX.
_______________________________________________________________________________________
9
相关PDF资料
PDF描述
MAX8688BLETG+ IC PWR SUPPLY CTRLR/MONTR 24TQFN
MAX868EUB+T IC REG MULTI CONFIG ADJ 10UMAX
MAX869LEEE+T IC SW P-CH HIGH SIDE 16-QSOP
MAX8704EUB+ IC REG LDO 1.5V/1.2V/ADJ 10-UMAX
MAX8707ETL+ IC CNTRLR MULTIPHASE 40TQFN
相关代理商/技术参数
参数描述
MAX8686EVKIT# 功能描述:电源管理IC开发工具 MAX8686 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
MAX8686EVKIT+ 功能描述:电源管理IC开发工具 MAX8686 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
MAX8687ETL+ 制造商:Maxim Integrated Products 功能描述:SINGLE /MULTIPHASE, DC/DC CONVERTER - Rail/Tube
MAX8688AHETG+ 功能描述:电流和电力监控器、调节器 Digital Power-Supply Controller/Monitor RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel
MAX8688AHETG+T 功能描述:电流和电力监控器、调节器 Digital Power-Supply Controller/Monitor RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel