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PDF MIC5306 Data sheet ( Hoja de datos )
| Número de pieza | MIC5306 | |
| Descripción | 150mA Micropower Cap Baseband LDO | |
| Fabricantes | Micrel Semiconductor | |
| Logotipo |  |
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MIC5306
150mA Micropower µCap Baseband LDO
General Description
The MIC5306 is a micropower, µCap low dropout
regulator designed for optimal performance in a small
space. It is capable of sourcing 150mA of output current
and only draws 16µA of operating current. This high
performance LDO offers fast transient response and
good PSRR while consuming a minimum of current.
Ideal for battery operated applications; the MIC5306
offers 1% accuracy, extremely low dropout voltage
(45mV @ 100mA). Equipped with a TTL logic
compatible enable pin, the MIC5306 can be put into a
zero-off-mode current state, drawing no current when
disabled.
The MIC5306 is a µCap design, operating with very
small ceramic output capacitors for stability, reducing
required board space and component cost.
The MIC5306 is available in fixed output voltages in
Thin SOT23-5 packaging.
Features
• Input voltage range: 2.25V to 5.5V
• Ultra-low IQ: Only 16µA operating current
• Stable with ceramic output capacitor
• Low dropout voltage of 45mV @ 100mA
• High output accuracy
- ±1.0% initial accuracy
- ±2.0% over temperature
• Thermal Shutdown Protection
• Current Limit Protection
Applications
• Digital Logic Power Supply
• Stand-by power supply
• Cellular phones
• PDAs
• Portable electronics
• Notebook PCs
_________________________________________________________________________________________________________
Typical Application
MIC5306
VIN VOUT
Applications
1µF EN
GND
1µF Co-processor
Ground Pin Current
vs. Temperature
20
18 150mA
16
14 100µA
12
10
8
6
4 VOUT = 2.8V
2
VIN = VOUT + 1V
COUT = 1µF
0
TEMPERATURE (°C)
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
August 2005
M9999-080805
(408) 955-1690
1 page  
Micrel, Inc.
Typical Characteristics
Ripple Rejection
-80
-70 150mA
-60
-50 100µA
-40
-30
-20 VOUT = 2.8V
-10 CVIONU=T V=O1UµTF+ 1V
00.01 0.1 1
10
100
FREQUENCY (kHz)
1000
Ground Pin Current
vs. Supply Voltage
18 150mA
16
14 100µA
12
10
8
6
4
2
VOUT = 2.8V
COUT = 1µF
02 2.5 3 3.5 4 4.5 5 5.5
SUPPLY VOLTAGE (V)
Output Voltage
vs. Supply Voltage
3
2.5
2 100µA
1.5
150mA
1
0.5 VOUT = 2.8V
00
1
2
COUT = 1µF
345
SUPPLY VOLTAGE (V)
Current Limit
vs. Supply Voltage
350
300
250
200
150
100
50 VOUT = 2.8V
30.8
4.0
4.2
4.4
4.6
COUT
4.8 5.0
= 1µF
5.2 5.4
SUPPLY VOLTAGE (V)
August 2005
MIC5306
Ground Pin Current
vs. Output Current
20
18
16
14
12
10
8
6
4 VOUT = 2.8V
2
VIN = VOUT + 1V
COUT = 1µF
00 20 40 60 80 100 120 140
OUTPUT CURRENT (mA)
Dropout Voltage
vs. Output Current
80
70
60
50
40
30
20
VOUT = 2.8V
10 VIN = VOUT + 1V
00
COUT = 1µF
20 40 60 80 100 120 140
OUTPUT CURRENT (mA)
Output Voltage
vs. Temperature
3.4
3.2
3
2.8
2.6
2.4 VOUT = 2.8V
2.2
VIN = VOUT + 1V
COUT = 1µF
2 IOUT = 100µA
TEMPERATURE (°C)
Enable Threshold
vs. Temperature
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
TEMPERATURE (C)
5
Ground Pin Current
vs. Temperature
20
18 150mA
16
14 100µA
12
10
8
6
4 VOUT = 2.8V
2 CVIONU=T V=O1UµTF+ 1V
0
TEMPERATURE (°C)
Dropout Voltage
vs. Temperature
100
90 150mA
80
70
60 100mA
50
40
30
50mA
20 25mA
10
0
TEMPERATURE (°C)
1E+02
Output Noise
Spectral Density
1E+01
1E-00
1E-01 VOUT = 2.8V
VIN = 3.8V
COUT = 1µF
1E-02 ROUT
0.01 0.1 1
10
100 1000 10000
FREQUENCY (kHz)
M9999-080805
(408) 955-1690
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MIC5306.PDF ] | |
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