参数资料
型号: CS5171GDR8
厂商: ON Semiconductor
文件页数: 5/21页
文件大小: 0K
描述: IC REG MULTI CONFIG 1.5A 8SOIC
产品变化通告: Product Discontinuation 27/Jun/2007
标准包装: 1
类型: 升压(升压),回扫,正向转换器,Sepic
输出数: 1
输入电压: 2.7 V ~ 30 V
PWM 型: 电流模式
频率 - 开关: 280kHz
电流 - 输出: 1.5A
同步整流器:
工作温度: 0°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
包装: 剪切带 (CT)
供应商设备封装: 8-SOICN
其它名称: CS5171GDR8OSCT
CS5171, CS5172, CS5173, CS5174
PACKAGE PIN DESCRIPTION
Package
Pin
Pin #
7
8
Symbol
PGND
V SW
Function
Power ground. This pin is the ground connection for the emitter of the power switching transistor. Connection
to a good ground plane is essential.
High current switch pin. This pin connects internally to the collector of the power switch. The open voltage
across the power switch can be as high as 40 V. To minimize radiation, use a trace as short as practical.
V CC
Shutdown
2.0 V
Regulator
Thermal
Shutdown
V SW
S PWM
SS
Delay
Timer
Sync
Oscillator
Frequency
Shift 5:1
Latch
R
Q
Driver
Switch
200 k
2.0 V
Negative
Error Amp
Slope
Compensation
× 5
63 m W
NFB
CS5172/4
only
250 k
+
?
? 0.65 V Detector
+
?
PWM Compar-
ator
Ramp
Summer
PGND
0.4 V Detector
FB
?
CS5171/3
only
1.276 V
+
Positive
Error Amp
AGND
V C
Figure 2. Block Diagram
http://onsemi.com
5
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