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PDF MIC5201-3.0BM Data sheet ( Hoja de datos )
| Número de pieza | MIC5201-3.0BM | |
| Descripción | 200mA Low-Dropout Voltage Regulator | |
| Fabricantes | Micrel Semiconductor | |
| Logotipo |  |
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MIC5201
Micrel
MIC5201
200mA Low-Dropout Voltage Regulator
General Description
The MIC5201 is an efficient linear voltage regulator with very
low dropout voltage (typically 17mV at light loads and 200mV
at 100mA), and very low ground current (1mA at 100mA
output), offering better than 1% initial accuracy with a logic
compatible on-off switching input.
Designed especially for hand-held battery powered devices,
the MIC5201 can be switched by a CMOS or TTL compatible
enable signal. This enable control may be connected directly
to VIN if unneeded. When disabled, power consumption
drops nearly to zero. The ground current of the MIC5201
increases only slightly in dropout, further prolonging battery
life. Key MIC5201 features include current limiting,
overtemperature shutdown, and protection against reversed
battery.
The MIC5201 is available in several fixed voltages and
accuracy configurations. It features the same pinout as the
LT1121 with better performance. Other options are available;
contact Micrel for details.
Features
• High output voltage accuracy
• Variety of output voltages
• Guaranteed 200mA output
• Low quiescent current
• Low dropout voltage
• Extremely tight load and line regulation
• Very low temperature coefficient
• Current and thermal limiting
• Reversed-battery protection
• Load-dump protection (fixed voltage versions)
• Zero off-mode current
• Logic-controlled electronic enable
• Available in SO-8 and SOT-223 packages
Applications
• Cellular telephones
• Laptop, notebook, and palmtop computers
• Battery powered equipment
• PCMCIA VCC and VPP regulation/switching
• Bar code scanners
• SMPS post-regulator/ dc-to-dc modules
• High-efficiency linear power supplies
Ordering Information
Part Number
Voltage Junction Temp. Range*
MIC5201BM
Adj –40°C to +125°C
MIC5201-3.0BM
3.0 –40°C to +125°C
MIC5201-3.3BM
3.3 –40°C to +125°C
MIC5201-5.0BM
5.0 –40°C to +125°C
MIC5201-3.0BS
3.0 –40°C to +125°C
MIC5201-3.3BS
3.3 –40°C to +125°C
MIC5201-4.8BS
4.85 –40°C to +125°C
MIC5201-5.0BS
5.0 –40°C to +125°C
Other voltages available. Contact Micrel for details.
* Junction Temperature.
Package
SO-8
SO-8
SO-8
SO-8
SOT-223
SOT-223
SOT-223
SOT-223
Typical Application
ENABLE
SHUTDOWN
MIC5201-3.3
IN OUT
EN
GND
VOUT
3.3V
1µF
MM8 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
July 1998
1
MIC5201
1 page  
MIC5201
Typical Characteristics
Dropout Voltage
vs. Output Current
250
200
150
100
50
0
0.01 0.1 1 10 100 1000
OUTPUT CURRENT (mA)
Ground Current
vs. Output Current
10
1
0.1
0.01 0.1 1 10 100
OUTPUT CURRENT (mA)
Ground Current
vs. Temperature
0.30
0.25
ILOAD = 100µA
CIN = 2.2µF
COUT = 4.7µF
0.20
0.15
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
Output Voltage vs. Temp.
(3.3V Version)
3.6
3.5
CIN = 2.2µF
COUT = 4.7µF
3.4
3.3
3.2 3 DEVICES:
HI / AVG / LO
3.1 CURVES APPLICABLE
AT 100µA AND 100mA
3.0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
July 1998
Dropout Voltage
vs. Temperature
0.4
0.3 IL = 100mA
0.2
0.1 IL = 1mA
0.0
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
Ground Current
vs. Supply Voltage
1.6
1.4
1.2
1.0 IL = 100mA
0.8
0.6
0.4
IL = 1mA
0.2
0.0
0
2 4 6 8 10
SUPPLY VOLTAGE (V)
Ground Current
vs. Temperature
1.5
1.4 ILOAD = 100mA
CIN = 2.2µF
1.3 COUT = 4.7µF
1.2
1.1
1.0
-50
0 50 100 150
TEMPERATURE (°C)
Output Current
vs. Temperature
300
280
260
240
220 VOUT = 3.3V
200
180
160 VOUT = 0V
140 (SHORT CIRCUIT)
120
100
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
5
Micrel
Dropout
Characteristics
3.5
3.0
2.5 IL = 100mA
2.0
1.5
1.0
IL = 100µA, 1mA
0.5
0.0
0
2468
INPUT VOLTAGE (V)
10
Output Voltage
vs. Output Current
3.5
3.0
2.5 CIN = 2.2µF
2.0 COUT = 4.7µF
1.5
1.0
0.5
0.0
0.0 0.1 0.2 0.3
OUTPUT CURRENT (A)
Thermal Regulation
(3.3V Version)
100
50
0
CL = 4.7 µF
2-050
100
0
-100
-5 0 5 10 15 20 25 30 35
TIME (ms)
Minimum Input Voltage
vs. Temperature
3.30
3.29
3.28
3.27
3.26
3.25
CIN = 2.2µF
COUT = 4.7µF
ILOAD = 1mA
3.24
3.23
3.22
3.21
3.20
-60 -30 0 30 60 90 120 150
TEMPERATURE (°C)
MIC5201
5 Page 
MIC5201
Micrel
July 1998
11
MIC5201
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MIC5201-3.0BM.PDF ] | |
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