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| 型号： | LP2950ACDT-3.0RK |
| 厂商： | ON Semiconductor |
| 文件页数： | 5/22页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3V .1A DPAK |
| 产品变化通告： | Product Obsolescence 11/Feb/2009 |
| 标准包装： | 2,500 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 3V |
| 输入电压： | 最高 30V |
| 电压 - 压降（标准）： | 0.35V @ 100mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 100mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-252-3，DPak（2 引线+接片），SC-63 |
| 供应商设备封装： | DPAK-3 |
| 包装： | 带卷 (TR) |
LP2950, LP2951, NCV2951
ELECTRICAL CHARACTERISTICS (continued)
(V in = V O + 1.0 V, I O = 100 m A, C O = 1.0 m F, T A = 25 ? C [Note 8], unles s otherwise noted.)
Characteristic
Line Regulation (V in = V O(nom) +1.0 V to 30 V) (Note 9)
LP2950C ? XX/LP2951C/LP2951C ? XX/NCV2951C*
LP2950AC ? XX/LP2951AC/LP2951AC ? XX/NCV2951AC*
Load Regulation (I O = 100 m A to 100 mA)
LP2950C ? XX/LP2951C/LP2951C ? XX/NCV2951C*
LP2950AC ? XX/LP2951AC/LP2951AC ? XX/NCV2951AC*
Dropout Voltage
I O = 100 m A
I O = 100 mA
Supply Bias Current
I O = 100 m A
I O = 100 mA
Dropout Supply Bias Current (V in = V O(nom) ? 0.5 V,
I O = 100 m A) (Note 9)
Current Limit (V O Shorted to Ground)
Thermal Regulation
Output Noise Voltage (10 Hz to 100 kHz) (Note 10)
C L = 1.0 m F
C L = 100 m F
Symbol
Reg line
Reg load
V I ? V O
I CC
I CCdropout
I Limit
Reg thermal
V n
Min
?
?
?
?
?
?
?
?
?
?
?
?
?
Typ
0.08
0.04
0.13
0.05
30
350
93
4.0
110
220
0.05
126
56
Max
0.20
0.10
0.20
0.10
80
450
120
12
170
300
0.20
?
?
Unit
%
%
mV
m A
mA
m A
mA
%/W
m Vrms
LP2951A/LP2951AC Only
Reference Voltage (T A = 25 ? C)
LP2951C/LP2951C ? XX/NCV2951C*
LP2951AC/LP2951AC ? XX/NCV2951AC*
Reference Voltage (T A = ? 40 to +125 ? C)
LP2951C/LP2951C ? XX/NCV2951C*
LP2951AC/LP2951AC ? XX/NCV2951AC*
Reference Voltage (T A = ? 40 to +125 ? C)
I O = 100 m A to 100 mA, V in = 23 to 30 V
LP2951C/LP2951C ? XX/NCV2951C*
LP2951AC/LP2951AC ? XX/NCV2951AC*
Feedback Pin Bias Current
V ref
V ref
V ref
I FB
1.210
1.220
1.200
1.200
1.185
1.190
?
1.235
1.235
?
?
?
?
15
1.260
1.250
1.270
1.260
1.285
1.270
40
V
V
V
nA
Error Comparator
Output Leakage Current (V OH = 30 V)
Output Low Voltage (V in = 4.5 V, I OL = 400 m A)
Upper Threshold Voltage (V in = 6.0 V)
Lower Threshold Voltage (V in = 6.0 V)
Hysteresis (V in = 6.0 V)
I lkg
V OL
V thu
V thl
V hy
?
?
40
?
?
0.01
150
45
60
15
1.0
250
?
95
?
m A
mV
mV
mV
mV
Shutdown Input
Input Logic Voltage
Logic “0” (Regulator “On”)
Logic “1” (Regulator “Off”)
Shutdown Pin Input Current
V shtdn = 2.4 V
V shtdn = 30 V
Regulator Output Current in Shutdown Mode
(V in = 30 V, V shtdn = 2.0 V, V O = 0, Pin 6 Connected to Pin 7)
V shtdn
I shtdn
I off
0
2.0
?
?
?
?
?
35
450
3.0
0.7
30
50
600
10
V
m A
m A
6. The Junction ? to ? Ambient Thermal Resistance is determined by PCB copper area per Figure 29.
7. ESD data available upon request.
8. Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
9. V O(nom) is the part number voltage option.
10. Noise tests on the LP2951 are made with a 0.01 m F capacitor connected across Pins 7 and 1.
*NCV prefix is for automotive and other applications requiring site and change control.
http://onsemi.com
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