参数资料
型号: LT1931AES5#TRM
厂商: Linear Technology
文件页数: 10/12页
文件大小: 0K
描述: IC REG INV 1A TSOT23-5
标准包装: 1
类型: 反相
输出数: 1
输入电压: 2.45 V ~ 16 V
PWM 型: 电流模式
频率 - 开关: 2.2MHz
电流 - 输出: 1A
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: SOT-23-5 细型,TSOT-23-5
包装: 剪切带 (CT)
供应商设备封装: TSOT-23-5
其它名称: LT1931AES5
LT1931AES5#TRMCT
LT1931AES5-ND
LT1931/LT1931A
TYPICAL APPLICATIO S
2.2MHz, 5V to –5V Converter Uses Tiny Chip Inductors
Efficiency
V IN
5V
L1
3.3 μ H
C2
1 μ F
L2
3.3 μ H
80
75
C1
2.2 μ F
V IN
SHDN
LT1931A
GND
SW
NFB
R1
28.7k
R2
C4
68pF
D1
V OUT
–5V
200mA
C3
4.7 μ F
70
65
60
10k
55
C1: TAIYO YUDEN X5R JMK212BJ225MG
C2: TAIYO YUDEN X5R LMK212BJ105MG
1931 TA06a
50
0
50
100 150 200
250
C3: TAIYO YUDEN X5R JMK212BJ475MG
D1: ON SEMICONDUCTOR MBR0520
L1, L2: PANASONIC ELJPC3R3MF
SLIC Power Supply with – 33V and – 68V Outputs, Uses Soft-Start
LOAD CURRENT (mA)
1931 TA06b
V IN
L1
22 μ H
R1
1 ?
12V
C1
4.7 μ F
16V
V IN
SW
C2
1 μ F
35V
D1
V SS
R SS
15k
LT1931
SHDN
GND
NFB
R2
R3
3
2
1
C4
4.7 μ F
35V
COM
V OUT1
1000pF
C SS
68nF
1k
25.5k
C6
R4
2.7k
C3
1 μ F
35V
D2
–33V
100mA*
*TOTAL OUTPUT POWER NOT TO EXCEED 3.3W
C1 TO C5: X5R OR X7R
D1, D2: BAV99 OR EQUIVALENT
L1: SUMIDA CR43-220
3
2
1
C5
4.7 μ F
35V
1931 TA08
V OUT2
–66V
48mA*
1931fa
10
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