参数资料
型号: MAX5033DASA+T
厂商: Maxim Integrated Products
文件页数: 12/17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
Application Circuit
V IN
C IN
V IN
BST
LX
0.1 μ F
L1
V OUT
R1
MAX5033
ON/OFF
FB
D1
C OUT
R2
SGND
GND
VD
0.1 μ F
Figure 2. Fixed Output Voltages
Table 2. Typical External Components Selection (Circuit of Figure 2)
V IN (V)
V OUT (V)
I OUT (A)
EXTERNAL COMPONENTS
C IN = 47μF, Panasonic, EEVFK2A470Q
C OUT = 47μF, Vishay Sprague, 594D476X_016C2T
C BST = 0.1μF, 0805
7.5 to 76
3.3
0.5
R1 = 1M ? ±1%, 0805
R2 = 384k ? ±1%, 0805
D1 = 50SQ100, IR
L1 = 150μH, Coilcraft Inc., DO5022P-154
C IN = 47μF, Panasonic, EEVFK2A470Q
C OUT = 33μF, Vishay Sprague, 594D336X_016C2T
C BST = 0.1μF, 0805
7.5 to 76
5
0.5
R1 = 1M ? ±1%, 0805
R2 = 384k ? ±1%, 0805
D1 = 50SQ100, IR
L1 = 220μH, Coilcraft Inc., DO5022P-224
C IN = 47μF, Panasonic, EEVFK2A470Q
C OUT = 15μF, Vishay Sprague, 594D156X_025C2T
C BST = 0.1μF, 0805
15 to 76
12
0.5
R1 = 1M ? ±1%, 0805
R2 = 384k ? ±1%, 0805
D1 = 50SQ100, IR
L1 = 330μH, Coilcraft Inc., DO5022P-334
ground configuration). A ground plane is required.
Minimize lead lengths to reduce stray capacitance,
trace resistance, and radiated noise. In particular,
place the Schottky rectifier diode right next to the
12
device. Also, place BST and VD bypass capacitors
very close to the device. Use the PCB copper plane
connecting to V IN and LX for heatsinking.
Maxim Integrated
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