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參數資料
| 型號： | MIC3975 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | 750mA UCap Low-Voltage Low-Dropout Regulator |
| 中文描述： | 七五〇毫安開普低電壓低壓差穩壓器 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 104K |
| 代理商： | MIC3975 |
February 2003
1
MIC3975
MIC3975
Micrel
Ordering Information
Part Number
MIC3975-1.65BMM
MIC3975-1.8BMM
MIC3975-2.5BMM
MIC3975-3.0BMM
MIC3975-3.3BMM
MIC3975-5.0BMM
MIC3975BMM
Voltage
1.65V
1.8V
2.5V
3.0V
3.3V
5.0V
Adj.
Junction 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
–40
°
C to +125
°
C
Package
MSOP-8
MSOP-8
MSOP-8
MSOP-8
MSOP-8
MSOP-8
MSOP-8
MIC3975
750mA
μ
Cap Low-Voltage Low-Dropout Regulator
Final Information
General Description
The MIC3975 is a 750mA low-dropout linear voltage regula-
tors that provide low-voltage, high-current output from an
extremely small package. Utilizing Micrel’s proprietary Super
β
eta PNP pass element, the MIC3975 offers extremely low
dropout (typically 300mV at 750mA) and low ground current
(typically 6.5mA at 750mA).
The MIC3975 is ideal for PC add-in cards that need to convert
from standard 5V to 3.3V or 3.0V, 3.3V to 2.5V or 2.5V to 1.8V
or 1.65V. A guaranteed maximum dropout voltage of 500mV
over all operating conditions allows the MIC3975 to provide
2.5V from a supply as low as 3.0V and 1.8V or 1.65V from a
supply as low as 2.25V.
The MIC3975 is fully protected with overcurrent limiting,
thermal shutdown, and reversed-battery protection. Fixed
voltages of 5.0V, 3.3V, 3.0, 2.5V, 1.8V, and 1.65V are
available. An adjustable output voltage option is available for
voltages down to 1.24V.
For other voltages, contact Micrel.
Typical Applications
Features
Fixed and adjustable output voltages to 1.24V
300mV typical dropout at 750mA
Ideal for 3.0V to 2.5V conversion
Ideal for 2.5V to 1.8V or 1.65V conversion
Stable with ceramic capacitor
750mA minimum guaranteed output current
1% initial accuracy
Low ground current
Current limiting and thermal shutdown
Reversed-battery protection
Reversed-leakage protection
Fast transient response
Low-profile MSOP-8
Applications
Fiber optic modules
LDO linear regulator for PC add-in cards
PowerPC power supplies
High-efficiency linear power supplies
SMPS post regulator
Multimedia and PC processor supplies
Battery chargers
Low-voltage microcontrollers and digital logic
Super
β
eta PNP is a trademark of Micrel, Inc.
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
IN
R1
100k
2.5V
Error
Flag
Output
V
3.3V
10
μ
F
ceramic
EN
OUT
FLG
GND
MIC3975-2.5BMM
SHENABLE
2.5V/750mA Regulator with Error Flag
IN
R1
1.5V
V
2.5V
10
μ
F
ceramic
R2
EN
OUT
ADJ
GND
MIC3975BMM
SHENABLE
1.5V/750mA Adjustable Regulator
相關PDF資料 |
PDF描述 |
|---|---|
| MIC3975BMM | 750mA UCap Low-Voltage Low-Dropout Regulator |
| MIC3975-1.65BMM | 750mA UCap Low-Voltage Low-Dropout Regulator |
| MIC3975-1.8BMM | 750mA UCap Low-Voltage Low-Dropout Regulator |
| MIC3975-2.5BMM | 750mA UCap Low-Voltage Low-Dropout Regulator |
| MIC3975-3.0BMM | 750mA UCap Low-Voltage Low-Dropout Regulator |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC3975_05 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:750mA μCap Low-Voltage Low-Dropout Regulator |
| MIC3975-1.65BMM | 功能描述:IC REG LDO 1.65V .75A 8-MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - 線性 系列:- 標準包裝:3,000 系列:- 穩壓器拓撲結構:正，固定式 輸出電壓:3.8V 輸入電壓:最高 16V 電壓 - 壓降（標準）:0.3V @ 80mA 穩壓器數量:1 電流 - 輸出:80mA 電流 - 限制（最小）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應商設備封裝:SOT-23-5 包裝:帶卷 (TR) 其它名稱:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND |
| MIC3975-1.65BMM TR | 功能描述:IC REG LDO 1.65V .75A 8-MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩壓器 - 線性 系列:- 標準包裝:3,000 系列:- 穩壓器拓撲結構:正，固定式 輸出電壓:3.8V 輸入電壓:最高 16V 電壓 - 壓降（標準）:0.3V @ 80mA 穩壓器數量:1 電流 - 輸出:80mA 電流 - 限制（最小）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應商設備封裝:SOT-23-5 包裝:帶卷 (TR) 其它名稱:MIC5203-3.8BM5TRMIC5203-3.8BM5TR-ND |
| MIC3975-1.65BMMTR | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel |
| MIC3975-1.65YMM | 功能描述:低壓差穩壓器 - LDO 750mA uCap LDO in Power MSOP-8 Pkg(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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