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參數資料
| 型號： | MIC39151-2.5BU |
| 廠商： | MICREL INC |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 1.5A Low-Voltage Low-Dropout Regulator |
| 中文描述： | 2.5 V FIXED POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PSSO5 |
| 封裝： | TO-263, 5 PIN |
| 文件頁數： | 1/12頁 |
| 文件大小： | 106K |
| 代理商： | MIC39151-2.5BU |
May 2000
1
MIC39150/39151
MIC39150/39151
Micrel
MIC39150/39151
1.5A Low-Voltage Low-Dropout Regulator
General Description
The MIC39150 and MIC39151 are 1.5A low-dropout linear
voltage regulators that provide a low voltage, high current
output with a minimum of external components. Utilizing
Micrel’s proprietary Super
β
eta PNP pass element, the
MIC39150/1 offers extremely low dropout (typically 375mV at
1.5A) and low ground current (typically 17mA at 1.5A).
The MIC39150/1 is ideal for PC add-in cards that need to
convert from 3.3V to 2.5V or 2.5V to 1.8V. A guaranteed
maximum dropout voltage of 500mV over all operating con-
ditions allows the MIC39150/1 to provide 2.5V from a supply
as low as 3V or 1.8V from a supply as low as 2.3V. The
MIC39150/1 also has fast transient response for heavy
switching applications. This device requires only 10
μ
F of
output capacitance to maintain stability and achieve fast
transient response
The MIC39150/1 is fully protected with overcurrent limiting,
thermal shutdown, reversed-battery protection, reversed-
lead insertion, and reverse-leakage protection. The MIC39151
offers a TTL-logic compatible enable pin and an error flag that
indicates undervoltage and over current conditions. Offered
in fixed voltages of 2.5V and 1.8V, the MIC39150/1 comes in
the TO-220 and TO-263 packages and is an ideal upgrade to
older, NPN-based linear voltage regulators.
For applications requiring input voltage greater than 16V or
automotive load dump protection, see the MIC29150/1/2/3
family.
Features
1.5A minimum guaranteed output current
500mV maximum dropout voltage over temperature
Ideal for 3.0V to 2.5V conversion
Ideal for 2.5 to 1.8V conversion
1% initial accuracy
Low ground current
Current limiting and Thermal shutdown
Reversed-battery and reversed lead insertion protection
Reversed-leakage protection
Fast transient response
TO-263 and TO-220 packaging
TTL/CMOS compatible enable pin (MIC39151 only)
Error flag output (MIC39151 only)
Applications
Low-voltage digital ICs
LDO linear regulator for PC add-in cards
High-efficiency linear power supplies
SMPS post regulator
Low-voltage microcontrollers
StrongARM processor supply
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
Typical Application
MIC39150-2.5
IN
OUT
GND
10μF
tantalum
V
3.3V
V
2.5V
MIC39150
MIC39151-2.5
IN
OUT
GND
10μF
tantalum
V
3.3V
V
2.5V
EN
FLG
ERROR FLAG
OUTPUT
ENABLE
SHUTDOWN
100k
MIC39151
StrongARM is a trademark of Advanced RSIC Machines, Ltd.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC39152 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:1.5A, Low-Voltage Low-Dropout Regulator |
| MIC39152WD | 制造商:Micrel Inc 功能描述:LDO Regulator Pos 1.24V to 15.5V 1.5A 6-Pin(5+Tab) TO-252 制造商:Micrel 功能描述:Micrel MIC39152WD, Low-Dropout (LDO) Voltage Regulators |
| MIC39152WD TR | 功能描述:低壓差穩壓器 - LDO 1.5A Adjustable Wide VIN LDO 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 |
| MIC39152WD-TR | 功能描述:Linear Voltage Regulator IC Positive Adjustable 1 Output 1.24 V ~ 15.5 V 1.5A TO-252-5 制造商:microchip technology 系列:- 包裝:剪切帶（CT） 零件狀態:有效 穩壓器拓撲:正，可調式 電壓 - 輸出:1.24 V ~ 15.5 V 電流 - 輸出:1.5A 電壓 - 跌落（典型值）:0.375V @ 1.5A 穩壓器數:1 電壓 - 輸入:2.25 V ~ 16 V 電流 - 限制（最小值）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:TO-252-6，DPak（5 引線 + 接片） 供應商器件封裝:TO-252-5 標準包裝:1 |
| MIC39152WU | 功能描述:低壓差穩壓器 - LDO 1.5A, Adjustable VOUT CAP LDO in 5-pin TO-263 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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