参数资料
型号: CS2001YDWFR20
厂商: ON Semiconductor
文件页数: 5/7页
文件大小: 0K
描述: IC REG BST FLYBK ADJ 1.2A 20SOIC
产品变化通告: Product Obsolescence 30/Dec/2003
标准包装: 1,000
类型: 升压,反激式
输出类型: 可调式
输出数: 1
输出电压: 4.9 V ~ 5.1 V
PWM 型: 电流模式
频率 - 开关: 150kHz
电流 - 输出: 1.2A
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: 20-SOIC(0.295",7.50mm 宽)
包装: 带卷 (TR)
供应商设备封装: 20-SOIC
其它名称: CS2001YDWFR20OS
CS2001
PACKAGE PIN DESCRIPTION (continued)
PACKAGE PIN #
SO ? 20L
13
14
15
16
17
18
19
20
PIN SYMBOL
V CHG
GND5
GND6
GND7
GND8
NERD
RESETB
V OUT
FUNCTION
Switched cap voltage tripler output.
Ground.
Ground.
Ground.
Ground.
No energy reserve detected output.
Reset output.
Linear regulator output.
0.25 V ?
V CC Switcher
V CC
?
+
V REF
Logic
V CC
VER
V FB
COMP
I BIAS
V REF
V CC
V REF V FB /C PUMP
Short
Detect
+
Error Amp
+
?
Preregulator
Switcher
Comp
Base
Drive
Current
Sense Amp +
?
Voltage
Tripler
1.2 A
V CHG
V SW
GND
C PUMP
Oscillator
V REF
Bandgap 1.25 V
Reference
Switcher
V C C Shutdown
Comp
? 0.5 × V CC
+
SWSD
V BAT
NERD
V CC
V REF
Over
Temperature
V REF Low
Battery
? Detect
7.25 V +
Linear V RE F
Error Amp
+
?
V REF
Logic
Current
Limit
V C C
No Battery
Drive
100 mA
VER
Detect
V OUT
RESETB
Reset
Figure 2. Block Diagram
http://onsemi.com
5
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