参数资料
型号: MAX1771CSA+T
厂商: Maxim Integrated Products
文件页数: 6/16页
文件大小: 0K
描述: IC REG CTRLR BST PWM 8-SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 控制器
输出数: 1
频率 - 最大: 500kHz
占空比: 92%
电源电压: 3 V ~ 16.5 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: 0°C ~ 70°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 带卷 (TR)
MAX1771
12V or Adjustable, High-Efficiency,
Low I Q , Step-Up DC-DC Controller
Typical Operating Characteristics (continued)
(Circuit of Figure 2a, T A = +25°C, unless otherwise noted.)
ENTERING/EXITING SHUTDOWN
A
0V
B
5V
0V
2ms/div
I OUT = 500mA, V IN = 5V
A: SHDN, 5V/div
B: V OUT , 5V/div
Pin Description
6
PIN
1
2
3
4
5
6
7
8
NAME
EXT
V+
FB
SHDN
REF
AGND
GND
CS
FUNCTION
Gate Drive for External N-Channel Power Transistor
Power-Supply Input. Also acts as a voltage-sense point when in bootstrapped mode.
Feedback Input for Adjustable-Output Operation. Connect to ground for fixed-output operation.
Use a resistor divider network to adjust the output voltage. See Setting the Output Voltage section.
Active-High TTL/CMOS Logic-Level Shutdown Input. In shutdown mode, V OUT is a diode drop
below V+ (due to the DC path from V+ to the output) and the supply current drops to 5μA
maximum. Connect to ground for normal operation.
1.5V Reference Output that can source 100μA for external loads. Bypass to GND with 0.1μF.
The reference is disabled in shutdown.
Analog Ground
High-Current Ground Return for the Output Driver
Positive Input to the Current-Sense Amplifier. Connect the current-sense resistor between CS
and GND.
Maxim Integrated
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MAX1771ESA 功能描述:DC/DC 开关控制器 12/Adj V Low IQ Step-Up RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK