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参数资料
| 型号： | LT1931AES5#TRM |
| 厂商： | Linear Technology |
| 文件页数： | 3/12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： | 无 |
| 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 PERFOR A CE CHARACTERISTICS
Quiescent Current
Feedback Pin Voltage
Shutdown Pin Current
7.0
6.5
6.0
5.5
NOT SWITCHING
LT1931A
–1.28
–1.27
–1.26
90
80
70
60
50
T A = 25 ° C
LT1931A
5.0
–1.25
40
4.5
4.0
LT1931
–1.24
–1.23
30
20
10
LT1931
3.5
0
3.0
–50
–25
0 25 50
TEMPERATURE ( ° C)
75
100
–1.22
–50
–25
0 25 50
TEMPERATURE ( ° C)
75
100
–10
0
1
2 3 4
SHDN PIN VOLTAGE (V)
5
6
Current Limit
1931 G01
Switch Saturation Voltage
1931 G02
Oscillator Frequency
1931 G03
1.6
1.4
T A = 25 ° C
0.45
0.40
T A = 25 ° C
2.5
2.3
LT1931A
1.2
1.0
0.35
0.30
0.25
2.1
1.9
1.7
0.8
0.6
0.4
0.2
0.20
0.15
0.10
0.05
1.5
1.3
1.1
0.9
0.7
LT1931
0
10
20
30
40
50
60
70
80
90
0
0
0.2
0.4
0.6
0.8
1.0
1.2
0.5
–50
–25
0
25 50
75
100
DUTY CYCLE (%)
PI FU CTIO S
1931 G04
SWITCH CURRENT (A)
1931 G05
TEMPERATURE ( ° C)
1931 G06
(
+ 8 ? 10 – 6
SW (Pin 1): Switch Pin. Connect inductor/diode here.
Minimize trace area at this pin to keep EMI down.
GND (Pin 2): Ground. Tie directly to local ground plane.
For LT 1931 A : R 1 =
| V OUT | – 1 . 255
1 .255
R 2
)
NFB (Pin 3): Feedback Pin. Reference voltage is –1.255V.
Connect resistive divider tap here. Minimize trace area.
The NFB bias current flows out of the pin. Set R1 and R2
according to:
SHDN (Pin 4): Shutdown Pin. Tie to 2.4V or more to enable
device. Ground to shut down.
V IN (Pin 5): Input Supply Pin. Must be locally bypassed.
(
+ 4 ? 10 – 6
For LT 1931 : R 1 =
| V OUT | – 1 . 255
1. 255
R 2
)
1931fa
3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1931AES5TRMPBF | 制造商:Linear Technology 功能描述:1.2MHz/2.2MHz Invert DC/DC Conv. LT1931 |
| LT1931AIS5 | 制造商:Linear Technology 功能描述:Conv DC-DC Single Inv 2.45V to 16V 5-Pin TSOT-23 |
| LT1931AIS5#PBF | 制造商:Linear Technology 功能描述:Conv DC-DC Single Inv 2.45V to 16V 5-Pin TSOT-23 制造商:Linear Technology 功能描述:BUCK 0.6A 500KHZ 6TSOT23 制造商:Linear Technology 功能描述:BUCK, 0.6A, 500KHZ, 6TSOT23 |
| LT1931AIS5#TR | 制造商:Linear Technology 功能描述:Conv DC-DC Single Inv 2.45V to 16V 5-Pin TSOT-23 T/R |
| LT1931AIS5#TRM | 制造商:Linear Technology 功能描述:Conv DC-DC Single Inv 2.45V to 16V 5-Pin TSOT-23 T/R |
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