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參數資料
| 型號： | mic5237 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | 500mA Low-Dropout Regulator(輸出電流500mA的低壓差穩壓器) |
| 中文描述： | 500mA的低壓差穩壓器（500mA的輸出電流的低壓差穩壓器） |
| 文件頁數： | 1/8頁 |
| 文件大小： | 41K |
| 代理商： | MIC5237 |
January 2000
1
MIC5237
MIC5237
Micrel
Typical Application
MIC5237
500mA Low-Dropout Regulator
Preliminary Information
General Description
The MIC5237 is a general-purpose low-dropout regulator
capable of 500mA output current with better than 3% output
voltage accuracy. Using Micrel’s proprietary Super
eta PNP process with a PNP pass element, these regu-
lators feature less than 300mV dropout voltage and typically
8mA ground current at full load.
Designed for applications that require moderate current over
a broad input voltage range, including hand-held and battery-
powered devices, the MIC5237 is intended for applications
that can tolerate moderate voltage drop at higher current.
Key features include low ground current to help prolong
battery life, reversed-battery protection, current limiting, over-
temperature shutdown, and thermally efficient packaging.
The MIC5237 is available in fixed output voltages only.
For space-critical applications and improved performance,
see the MIC5209 and MIC5219. For output current require-
ments up to 750mA, see the MIC2937.
Features
Guaranteed 500mA output over the full operating
temperature range
Low 300mV typical dropout voltage at full load
Extremely tight load and line regulation
Current and thermal limiting
Reversed-battery protection
TO-220 and TO-263 packages
Low temperature coefficient
No-load stability
Low-noise output
Applications
Portable and laptop computers
Desktop computer
Battery chargers
SMPS post-regulator/dc-to-dc modules
Consumer and personal electronics
Ordering Information
Part Number
MIC5237-2.5BT
MIC5237-2.5BU
MIC5237-3.3BT
MIC5237-3.3BU
MIC5237-5.0BT
MIC5237-5.0BU
Voltage
2.5V
2.5V
3.3V
3.3V
5.0V
5.0V
Junct. Temp. Range
–40
°
C to +125
°
C
–40
°
C to +125
°
C
–40
°
C to +125
°
C
–40
°
C to +125
°
C
–40
°
C to +125
°
C
–40
°
C to +125
°
C
Package
TO-220
TO-263
TO-220
TO-263
TO-220
TO-263
MIC5237-5.0
IN
OUT
GND
1.0μF
1.0μF
tantalum
V
≥
5.6V
V
OUT
5.0V
3%
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
相關PDF資料 |
PDF描述 |
|---|---|
| MIC5237-2.5BU | 500mA Low-Dropout Regulator Preliminary Information |
| MIC5237-3.3BT | 500mA Low-Dropout Regulator Preliminary Information |
| MIC5237-3.3BU | 500mA Low-Dropout Regulator Preliminary Information |
| MIC5237-5.0BT | 500mA Low-Dropout Regulator Preliminary Information |
| MIC5237-5.0BU | 500mA Low-Dropout Regulator Preliminary Information |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC5237_07 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:500mA Low-Dropout Regulator |
| MIC5237-2.5BT | 制造商:Micrel Inc 功能描述:LDO Regulator Pos 2.5V 0.5A 3-Pin(3+Tab) TO-220 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MIC5237-2.5BU | 功能描述:IC REG LDO 2.5V .5A TO-263 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - 線性 系列:- 標準包裝:500 系列:- 穩壓器拓撲結構:正，固定式 輸出電壓:12V 輸入電壓:14.5 V ~ 35 V 電壓 - 壓降（標準）:- 穩壓器數量:1 電流 - 輸出:500mA 電流 - 限制（最小）:- 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:TO-205AD，TO-39-3 金屬罐 供應商設備封裝:TO-39 包裝:散裝 其它名稱:*LM78M12CH*LM78M12CH/NOPBLM78M12CH |
| MIC5237-2.5BU TR | 功能描述:IC REG LDO 2.5V .5A TO-263 RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - 線性 系列:- 標準包裝:500 系列:- 穩壓器拓撲結構:正，固定式 輸出電壓:12V 輸入電壓:14.5 V ~ 35 V 電壓 - 壓降（標準）:- 穩壓器數量:1 電流 - 輸出:500mA 電流 - 限制（最小）:- 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:TO-205AD，TO-39-3 金屬罐 供應商設備封裝:TO-39 包裝:散裝 其它名稱:*LM78M12CH*LM78M12CH/NOPBLM78M12CH |
| MIC5237-2.5YU | 功能描述:低壓差穩壓器 - LDO 500mA 3% LDO Improved LM2937(Lead Free) RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節:0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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