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參數資料
| 型號： | MIC5239BM |
| 廠商： | MICREL INC |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 1.6 MHz, 3V to 6V Input, 3A Syn. Step Down SWIFT Converter with Disabled Sinking During Start UP 24-VQFN -40 to 125 |
| 中文描述： | 1.24 V-20 V ADJUSTABLE POSITIVE LDO REGULATOR, 0.4 V DROPOUT, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數： | 1/12頁 |
| 文件大?。?/td> | 96K |
| 代理商： | MIC5239BM |
January 2002
1
MIC5239
MIC5239
Micrel
MIC5239
Low Quiescent Current 500mA
μ
Cap LDO Regulator
Advance Information
General Description
The MIC5239 is a low quiescent current,
μ
Cap low-dropout
regulator. With a maximum operating input voltage of 30V
and a quiescent current of 23
μ
A, it is ideal for supplying keep-
alive power in systems with high-voltage batteries.
Capable of 500mA output, the MIC5239 has a dropout
voltage of only 350mV. It can provide high output current for
applications such as USB.
As a
μ
Cap LDO, the MIC5239 is stable with either a ceramic
or a tantalum output capacitor. It only requires a 3.3
μ
F output
capacitor for stability.
The MIC5239 includes a logic compatible enable input and an
undervoltage error flag indicator. Other features of the
MIC5239 include thermal shutdown, current-limit, overvolt-
age shutdown, load-dump protection, reverse leakage pro-
tections, and reverse battery protection.
Available in the thermally enhanced SOIC-8, MSOP-8 and
SOT-223, the MIC5239 comes in fixed 3.0V and adjustable
voltages. For other output voltages, contact Micrel.
Typical Application
I
GND
= 23
μ
A
V
OUT
3.0V/100
μ
A
V
IN
30V
IN
MIC5239
EN
OUT
GND
FLG
Regulator with Low I
O
and Low I
Q
Features
Ultra-low quiescent current (I
Q
= 23
μ
A @I
O
= 100
μ
A)
Continuious 500mA output current
Wide input range: 2.3V to 30V
Low dropout voltage:
350mV @500mA;
±
1.0% initial output accuracy
Stable with ceramic or tantalum output capacitor
Logic compatible enable input
Low output voltage error flag indicator
Overcurrent protection
Thermal shutdown
Reverse-leakage protection
Reverse-battery protection
High-power SOIC-8, MSOP-8 and SOT-223 packages
Applications
USB power supply
Keep-alive supply in notebook and portable personal
computers
Logic supply from high-voltage batteries
Automotive electronics
Battery-powered systems
Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 http://www.micrel.com
Ground Current vs. Input Voltage
10
15
20
25
30
35
40
4
9
INPUT VOLTAGE (V)
14
19
24
29
G
μ
A
I
OUT
= 10
μ
A
I
OUT
= 1mA
I
OUT
= 100
μ
A
相關PDF資料 |
PDF描述 |
|---|---|
| MIC5239BMM | 1.6 MHz, 3V to 6V Input, 3A Syn. Step Down SWIFT Converter with Disabled Sinking During Start UP 24-VQFN -40 to 125 |
| MIC5239-3.0BMM | Low Quiescent Current 500mA UCap LDO Regulator |
| MIC5246-3.0BM5 | 150mA レCap CMOS LDO Regulator Preliminary Information |
| MIC5246 | DIODE,40V,1A,1N5819 |
| MIC5246-2.6BM5 | DIODE, SCHOTTKY BARRIER DIODE |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC5239BM TR | 功能描述:IC REG LDO ADJ .5A 8-SOIC 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?。?- 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 |
| MIC5239BMM | 功能描述:IC REG LDO ADJ .5A 8MSOP RoHS:是 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?。?- 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 |
| MIC5239BMM TR | 功能描述:IC REG LDO ADJ .5A 8-MSOP 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?。?- 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 |
| MIC5239YM | 功能描述:低壓差穩壓器 - LDO High Vin, Low Iq Regulator (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 |
| MIC5239YM TR | 功能描述:低壓差穩壓器 - LDO High Vin, Low Iq Regulator (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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