参数资料
型号: MAX5033DASA+T
厂商: Maxim Integrated Products
文件页数: 8/17页
文件大小: 0K
描述: IC REG BUCK ADJ 0.5A 8SOIC
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: 1.25 V ~ 13.2 V
输入电压: 7.5 V ~ 76 V
PWM 型: 电压模式
频率 - 开关: 125kHz
电流 - 输出: 500mA
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
供应商设备封装: 8-SOIC
MAX5033
500mA, 76V, High-Efficiency, MAXPower
Step-Down DC-DC Converter
Pin Description
PIN
1
2
3
4
5
6
7
8
NAME
BST
VD
SGND
FB
ON/ OFF
GND
V IN
LX
ON/OFF
FUNCTION
Boost Capacitor Connection. Connect a 0.1μF ceramic capacitor from BST to LX.
Internal Regulator Output. Bypass VD to GND with a 0.1μF ceramic capacitor.
Internal Connection. SGND must be connected to GND.
Output Sense Feedback Connection. For fixed output voltage (MAX5033A, MAX5033B, MAX5033C),
connect FB to V OUT . For adjustable output voltage (MAX5033D), use an external resistive voltage-divider to
set V OUT . V FB regulating set point is 1.22V.
Shutdown Control Input. Pull ON/ OFF low to put the device in shutdown mode. Drive ON/ OFF high for
normal operation.
Ground
Input Voltage. Bypass V IN to GND with a low-ESR capacitor as close to the device as possible.
Source Connection of Internal High-Side Switch
Simplified Block Diagram
V IN
1.69V
ENABLE
REGULATOR
(FOR ANALOG)
CPFM
I REF-PFM
HIGH-SIDE
CURRENT
VD
REGULATOR
(FOR DRIVER)
V REF
OSC
RAMP
CILIM
I REF-LIM
SENSE
BST
MAX5033
FB
RAMP
CLK
CONTROL
LOGIC
R h
R l
x1
TYPE 3
COMPENSATION
V REF
EAMP
CPWM
THERMAL
SHUTDOWN
8
GND
SGND
LX
Maxim Integrated
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