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PDF MIC5212 Data sheet ( Hoja de datos )
| Número de pieza | MIC5212 | |
| Descripción | Dual 500mA LDO Regulator | |
| Fabricantes | Micrel Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MIC5212 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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MIC5212
MIC5212
Dual 500mA LDO Regulator
Final
General Description
The MIC5212 is a dual linear voltage regulator with very-low
dropout voltage (typically 10mV at light loads and 350mV at
500mA), very-low ground current (225µA at 10mA output),
and better than 1% initial accuracy.
Both regulator outputs can supply up to 500mA at the same
time as long as each regulator’s maximum junction tempera-
ture is not exceeded.
Key features include current limiting, overtemperature shut-
down, and protection against reversed battery.
The MIC5212 is available in a fixed 3.3V/2.5V output voltage
configuration. Other voltages are available; contact Micrel for
details.
Features
• Fused lead frame SOIC-8
• Up to 500mA per regulator output
• Low quiescent current
• Low dropout voltage
• Tight load and line regulation
• Low temperature coefficient
• Current and thermal limiting
• Reversed input polarity protection
Applications
• Hard disk drives
• CD R/W
• Bar code scanners
• SMPS post regulator/DC-to-DC modules
• High-efficiency linear power supplies
Micrel
Ordering Information
Part Number
Voltage Accuracy
MIC5212-SJBM
3.3V/2.5V 1.0%
Other voltages available. Contact Micrel for details.
Junction Temp. Range*
–40°C to +125°C
Package
8-lead SOIC
Typical Application
IN = 5V
4.7µF
MIC5212-SJBM
INA OUTA
INB
OUTB
VO1 = 3.3V
VO2 = 2.5V
GND
4.7µF 4.7µF
3.3V/2.5V Dual LDO
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com
April 2003
1
MIC5212
1 page  
MIC5212
Output 1 Load Transient Response
VIN = 3.3V
VOUT = 2.5V
COUT = 10 F Ceramic
1000mA
500mA
10mA
10mA
TIME (1ms/div.)
Output 1 Line Transient Response
VIN = 3.3V
VOUT = 2.5V
COUT = 10 F Ceramic
7V
4.3V
1000mA
10mA
TIME (1ms/div.)
Turn-On Response
3.3V, 500mA
2.5V, 200mA
TIME (40µs/div.)
Micrel
Output 2 Load Transient Response
VIN = 3.3V
VOUT = 2.5V
COUT = 10 F Ceramic
1000mA
500mA
10mA
10mA
TIME (1ms/div.)
Line Transient Response
6V
3.5V
TIME (1ms/div.)
April 2003
5
MIC5212
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet MIC5212.PDF ] | |
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