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参数资料
| 型号： | LP2950ACN-L-3-3 |
| 厂商： | Exar Corporation |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 3.3V .1A TO92-3 |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 3.3V |
| 输入电压： | 最高 30V |
| 电压 - 压降（标准）： | 0.38V @ 100mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 100mA |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | TO-226-3、TO-92-3 标准主体 |
| 供应商设备封装： | TO-92-3 |
| 包装： | 散装 |
| 其它名称： | 1016-1389 |
LP2950/51
CONDITIONS
PARAMETER (Note 2)
8-Pin Versions only (Continued)
Reference Voltage
Temperature
Coefficient
Feedback Pin Bias
Current
Temperature
Coefficient
Error Comparator
LP2951AC
Min. Typ.
Max.
20
0.1
Min.
LP2951C
Typ. Max.
50
0.1
UNITS
ppm/°C
nA/°C
Output Leakage
Current
Output Low Voltage
V OH = 30V
V IN = 4.5V
I OL = 400 μ A
0.01
150
1
250
0.01
150
1
250
μ A
mV
Upper Threshold
Voltage
Lower Threshold
Voltage
Hysteresis
(Note 7)
(Note 7)
(Note 7)
40
60
75
15
95
40
60
75
15
95
mV
mV
mV
Shutdown Input
Input logic Voltage
Shut down Pin Input
Current
Regulator Output
Current in Shutdown
Thermal
Resistance θ JA
Low (Regulator ON)
High (Regulator OFF)
V S = 2.4V
V S = 30V
(Note 8)
8 Pin SOIC
3 Pin TO-92
2.0
1.3
30
675
3
128. 4
131.9
0.7
50
800
10
2.0
1.3
30
675
3
0.7
50
800
10
V
V
μ A
μ A
μ A
°C/W
°C/W
Note 1: Output or reference voltage temperature coefficients defined as the worst case voltage change divided by the t otal temperature range.
Note 2: Unless otherwise specified all limits guaranteed for T J = 25 ° C, V IN = 6V, I L = 100 μ A and C L = 1 μ F. Additional conditions for the 8-pin versions are feedback
tied to 5V tap and output tied to output sense (V OUT = 5V) and V SHUTDOWN ≤ 0.8V.
Note 3: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes i n output voltage due to heating effects are
covered under the specification for thermal regulation.
Note 4 : Line regulation for the LP2951 is tested at I L = 1mA. For I L = 100 μ A and T J = 125 ° C, line regulation is guaranteed by design to 0.2%. See typical
performance characteristics for line regulation versus temperature and load current.
Note 5: Dropout voltage is defined as the input to output differential at which the output voltage drops 100 mV below its nominal value measured at 1V differential. At
very low values of programmed output voltage, the minimum input supply voltage of 2V (2.3V over temperature) must be ta ken into account.
Note 6: V REF ≤ V OUT ≤ (V IN - 1V), 2.3 ≤ V IN ≤ 30V, 100 μ A ≤ I L ≤ 100mA, T J ≤ T JMAX .
Note 7: Comparator thresholds are expressed in terms of a voltage differential at the feedback terminal below the nomi nal reference voltage measured at 6V input. To
express these thresholds in terms of output voltage change, multiply by the error amplifier gain = V OUT /V REF = (R 1 + R 2 )/R 2 . For example, at a programmed output
voltage of 5V, the error output is guaranteed to go low when the output drops by 95 mV x 5V/1.235 = 384 mV. Thresholds remain constant as a percent of V OUT as V OUT
is varied, with the dropout warning occurring at typically 5% below nominal, 7.5% guaranteed.
Note 8: V SHUTDOWN ≥ 2V, V IN ≤ 30V, V OUT =0, Feedback pin tied to 5V Tap.
Note 9: All typical values are not guaranteed. The value could vary from lot to lot.
Rev G
LP2950-5 Low Dropout Linear Regulator s
3
? 2008 Exar Corporation
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LP2950ACN-L-3-3/TR | 功能描述:低压差稳压器 - LDO 100mA LDO VOLTAGE REGULATOR RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| LP2950ACN-L-5-0 | 功能描述:低压差稳压器 - LDO 100mA Low Dropout Voltage Regulator RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| LP2950ACN-L-5-0/TR | 功能描述:低压差稳压器 - LDO 100mA LDO VOLTAGE REGULATOR RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| LP2950ACN-X | 制造商:CALOGIC 制造商全称:CALOGIC 功能描述:100mA Low Dropout Voltage Regulators |
| LP2950ACP-3 | 制造商:ADMOS 制造商全称:ADMOS 功能描述:100mA LOW DROPOUT VOLTAGE REGULATOR |
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