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參數資料
| 型號： | MIC2920A-12WT |
| 廠商： | MICREL INC |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 400mA Low-Dropout Voltage Regulator |
| 中文描述： | 12 V FIXED POSITIVE LDO REGULATOR, 0.75 V DROPOUT, SFM3 |
| 封裝： | LEAD FREE, TO-220, 3 PIN |
| 文件頁數： | 1/12頁 |
| 文件大小： | 415K |
| 代理商： | MIC2920A-12WT |
MIC2920A/29201/29202/29204
Micrel, Inc.
February 2005
1
M9999-021505
MIC2920A/29201/29202/29204
400mA Low-Dropout Voltage Regulator
Features
High output voltage accuracy
Guaranteed 400mA output
Low quiescent current
Low dropout voltage
Extremely tight load and line regulation
Very low temperature coefficient
Current and thermal limiting
Input withstands –20V reverse battery and
60V positive transients
Error flag warns of output dropout
Logic-controlled electronic shutdown
Output programmable from 1.24V to 26V
(MIC29202/MIC29204)
Available in TO-220-3, TO-220-5, and surface-mount
TO-263-5, SOT-223, and SO-8 packages.
Applications
Battery-powered equipment
Cellular telephones
Laptop, notebook, and palmtop computers
PCMCIA V
and V
PP
regulation/switching
Bar code scanners
Automotive electronics
SMPS post-regulators
Voltage reference
High-efficiency linear power supplies
General Description
The MIC2920A family are “bulletproof,” efficient voltage regu-
lators with very low dropout voltage (typically 40mV at light
loads and 370mV at 250mA), and very low quiescent current
(140μA typical). The quiescent current of the MIC2920A in-
creases only slightly in dropout, prolonging battery life. Key
MIC2920A features include protection against reversed bat-
tery, fold-back current limiting, and automotive “load dump”
protection (60V positive transient).
The MIC2920 is available in several configurations. The
MIC2920A-x.x devices are three pin fixed voltage regulators
available in 3.3V, 4.85V, 5V, and 12V outputs. The MIC29201
is a fixed regulator offering a logic compatible ON/OFF (shut-
down) input and an error flag output. This flag may also be
used as a power-on reset signal. A logic-compatible shutdown
input is provided on the adjustable MIC29202 which allows
the regulator to be switched on and off. The MIC29204 8-pin
SOIC adjustable regulator includes both shutdown and error
flag pins and may be pin-strapped for 5V output or programmed
from 1.24V to 26V using two external resistors.
MIC2920A-xxBT
(TO-220)
MIC29201/29202BT
(TO-220-5)
MIC29201/29202BU
(TO-263-5)
5-Lead Package Pinouts
MIC29201
1) Error
2) Input
3) Ground
4) Output
5) Shutdown
MIC29202
Adjust
Shutdown
Ground
Input
Output
Tab is Ground on SOT-223, TO-220, and TO-263 packages.
1
3
2
TAB
INPUT
MIC2920A-x.xBS
(SOT-223)
OUTPUT
GROUND
Pin Configuration
1
2
3
4
8
7
6
5
INPUT
NC
NC
ERROR
OUTPUT
SENSE
SHUTDOWN
GROUND
MIC29201-3.3BM (SOIC-8)
1
2
3
4
8
7
6
5
INPUT
ADJUST
5V TAP
ERROR
OUTPUT
SENSE
SHUTDOWN
GROUND
MIC29204BM (SOIC-8)
Micrel, Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
TAB
5
4
3
2
1
TAB
3
OUT
2
GND
1
IN
TAB
5
4
3
2
1
相關PDF資料 |
PDF描述 |
|---|---|
| MIC2920A-3.3WS | 400mA Low-Dropout Voltage Regulator |
| MIC2920A-3.3WT | 400mA Low-Dropout Voltage Regulator |
| MIC2920A-4.8WS | 400mA Low-Dropout Voltage Regulator |
| MIC2920A-4.8WT | 400mA Low-Dropout Voltage Regulator |
| MIC2920A-5.0WS | 400mA Low-Dropout Voltage Regulator |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MIC2920A-3.3BS | 功能描述:IC REG LDO 3.3V .4A SOT223 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 |
| MIC2920A-3.3BS TR | 功能描述:IC REG LDO 3.3V .4A SOT223 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 |
| MIC2920A-3.3BT | 功能描述:IC REG LDO 3.3V .4A TO-220-3 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 |
| MIC2920A-3.3WS | 功能描述:低壓差穩壓器 - LDO 400mA LDO Fixed Volt.(ROHS Compliant) 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 |
| MIC2920A-3.3WS TR | 功能描述:低壓差穩壓器 - LDO 400mA LDO Fixed Volt.(ROHS Compliant) 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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