- 您现在的位置：买卖IC网 > PDF目录13064 > MIC2940A-5.0WU (Micrel Inc)IC REG LDO 5V 1.25A TO263 PDF资料下载
参数资料
| 型号： | MIC2940A-5.0WU |
| 厂商： | Micrel Inc |
| 文件页数： | 4/11页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 5V 1.25A TO263 |
| 标准包装： | 50 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 5V |
| 输入电压： | 最高 26V |
| 电压 - 压降（标准）： | 0.4V @ 1.25A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 1.25A |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-263-4，D²Pak（3 引线+接片），TO-263AA |
| 供应商设备封装： | TO-263-3 |
| 包装： | 管件 |
| 产品目录页面： | 1096 (CN2011-ZH PDF) |
| 其它名称： | 576-1137 |
Micrel, Inc.
Electrical Characteristics (MIC2941A Only)
MIC2940A/2941A
Parameter
Reference Voltage
Condition
Min
1.223
Typ
1.235
Max
1.247
Units
V
1.210
1.260
V
Adjust Pin Bias Current
Reference Voltage Temperature Coefficient
Adjust Pin Bias Current Temperature
( Note 8 )
1.204
20
20
0.1
1.266
40
60
V
nA
nA
ppm/°C
nA/°C
Coefficient
Shutdown Input
Input Logic Voltage
Low (ON)
High (OFF)
2.0
1.3
0.7
V
V
V
Shutdown Pin Input Current
Regulator Output Current in Shutdown
V SHUTDOWN = 2.4V
V SHUTDOWN = 26V
( Note 10 )
30
450
3
50
100
600
750
30
μA
μA
μA
μA
μA
Notes:
60
μA
1.
2.
3.
4.
5.
6.
7.
8.
9.
Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical speci ? cations do not apply when operating
the device outside of its rated operating conditions. The maximum allowable power dissipation is a function of the maximum junction temperature,
T J(MAX) , the junction-to-ambient thermal resistance, θ JA , and the ambient temperature, T A . The maximum allowable power dissipation at any ambient
temperature is calculated using: P (MAX) = (T J(MAX) – T A ) / θ JA . Exceeding the maximum allowable power dissipation will result in excessive die
temperature, and the regulator will go into thermal shutdown.
Output voltage temperature coef ? cient is de ? ned as the worst case voltage change divided by the total temperature range.
Regulation is measured at constant junction temperature using low duty cycle pulse testing. Changes in output voltage due to heating effects are
covered by the thermal regulation speci ? cation.
Dropout Voltage is de ? ned as the input to output differential at which the output voltage drops 100 mV below its nominal value measured at 1V
differential. At low values of programmed output voltage, the minimum input supply voltage of 4.3V over temperature must be taken into account.
Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current plus the ground pin
current.
The MIC2940A features fold-back current limiting. The short circuit (V OUT = 0V) current limit is less than the maximum current with normal output
voltage.
Thermal regulation is de ? ned as the change in output voltage at a time T after a change in power dissipation is applied, excluding load or line
regulation effects. Speci ? cations are for a 200mA load pulse at V IN = 20V (a 4W pulse) for T = 10ms.
V REF ≤ V OUT ≤ (V IN – 1 V), 4.3V ≤ V IN 26V, 5mA < I L ≤ 1.25A, T J ≤ T J(MAX) .
Circuit of Figure 3 with R1 ≥ 150k ? . V SHUTDOWN ≥ 2 V and V IN ≤ 26 V,V OUT = 0.
10. When used in dual supply systems where the regulator load is returned to a negative supply, the output voltage must be diode clamped to ground.
11. Maximum positive supply voltage of 60 V must be of limited duration (< 100 ms) and duty cycle ( ≤ 1%). The maximum continuous supply voltage is
26V.
July 2007
4
M9999-071307
相关PDF资料 |
PDF描述 |
|---|---|
| VI-B33-EY-F2 | CONVERTER MOD DC/DC 24V 50W |
| GSA15DTAS | CONN EDGECARD 30POS R/A .125 SLD |
| VE-BTF-EV-B1 | CONVERTER MOD DC/DC 72V 150W |
| ECA30DTBD | CONN EDGECARD 60POS R/A .125 SLD |
| VE-BT4-EV-B1 | CONVERTER MOD DC/DC 48V 150W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MIC2941ABT | 功能描述:IC REG LDO ADJ 1.25A TO220-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式 输出电压:3.8V 输入电压:最高 16V 电压 - 压降（标准）:0.3V @ 80mA 稳压器数量:1 电流 - 输出:80mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:带卷 (TR) 其它名称:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND |
| MIC2941ABT L3 | 制造商:Micrel Inc 功能描述:The Micrel MIC2941ABT L3 is a 1.25A Low Dropout Voltage Regulator. |
| MIC2941ABU | 功能描述:IC REG LDO ADJ 1.25A TO263-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式 输出电压:3.8V 输入电压:最高 16V 电压 - 压降（标准）:0.3V @ 80mA 稳压器数量:1 电流 - 输出:80mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:带卷 (TR) 其它名称:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND |
| MIC2941ABU TR | 功能描述:IC REG LDO ADJ 1.25A TO263-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 线性 系列:- 标准包装:3,000 系列:- 稳压器拓扑结构:正，固定式 输出电压:3.8V 输入电压:最高 16V 电压 - 压降（标准）:0.3V @ 80mA 稳压器数量:1 电流 - 输出:80mA 电流 - 限制（最小）:- 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:带卷 (TR) 其它名称:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND |
| MIC2941AWT | 功能描述:低压差稳压器 - LDO 1.25A LDO Adj+Shutdown(ROHS Compliant) 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 |
发布紧急采购，3分钟左右您将得到回复。