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PDF MIC5353 Data sheet ( Hoja de datos )
| Número de pieza | MIC5353 | |
| Descripción | 500mA LDO | |
| Fabricantes | Micrel Semiconductor | |
| Logotipo |  |
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MIC5353
500mA LDO in 1.6mm × 1.6mm Package
General Description
The MIC5353 is a high-performance, single-output, ultra-
low LDO (ULDO™) regulator, offering a low total output
noise of 30μVRMS. The MIC5353 is capable of sourcing
500mA output current and offers high-PSRR and low-
output noise, making it an ideal solution for RF
applications.
The MIC5353 provides 2% accuracy, extremely low
dropout voltage (160mV @ 500mA), and low ground
current (typically 90µA) making it ideal for battery-operated
applications. When disabled, the MIC5353 enters a zero-
off-mode current state, thereby drawing almost no current.
The MIC5353 is available in the 1.6mm x 1.6mm Thin
MLF® package, occupying only 2.56mm2 of PCB area, a
36% reduction in board area compared to SC-70 and 2mm
x 2mm Thin MLF® packages.
The MIC5353 has an operating junction temperature range
of –40°C to +125°C and is available in fixed and adjustable
output voltages in lead-free (RoHS-compliant) Thin MLF®
package.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
• 500mA guaranteed output current
• Input voltage range: 2.6V to 6V
• Ultra low dropout voltage: 160mV @ 500mA
• ±2% initial accuracy
• Ultra low output noise: 30µVrms
• Low quiescent current: 90µA
• Stable with ceramic output capacitors
• 35µs turn-on time
• Thermal shutdown and current limit protection
• Tiny 6-pin 1.6mm x 1.6mm Thin MLF® leadless package
Applications
• Mobile Phones
• GPS, PDAs, PMP, handhelds
• Portable electronics
• Digital still and video cameras
• Digital TV
_________________________________________________________________________________________________________________________
Typical Application
Portable Application
ULDO is a trademark of Micrel, Inc
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
October 27, 2015
Revision 2.0
1 page  
Micrel, Inc.
Typical Characteristics
200
180
160
140
120
100
80
60
40
20
0
0
Dropout Voltage
vs. Output Current
50 100 150 200 250 300 350 400 450 500
OUTPUT CURRENT (mA)
Dropout Voltage
vs. Temperature
250
200
500mA
150
300mA
100
50
150mA
0
-40 -20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
Ground Current
vs. Temperature
120
110
100
IOUT = 500mA
90
80
IOUT = 100μA
70
60
-40 -20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
Current Limit
vs. Input Voltage
1.4
1.3
1.2
1.1
1 VOUT =2.8V
CIN=COUT=1μF
0.9
0.8
2.5 3 3.5 4 4.5 5 5.5 6
INPUT VOLTAGE(V)
Output Voltage
vs. Output Current
1.84
1.83
1.82
1.81
1.8
1.79
1.78 VIN=2.8V
1.77 COUT=CIN=1μF
1.76
0
50 100 150 200 250 300 350 400 450 500
OUTPUT CURRENT(mA)
PSRR
-100
-90
-80 500µA
-70
-60
-50
300µA
-40
-30
-20
COUT = 1µF
-10 CBYP = 0.1µF
0
10 100
100µA
1,000
10,000 100,000 1,000,000 10,000,000
FREQUENCY (Hz)
MIC5353
Ground Current
vs. Output Current
92
90
88
86
84
VOUT = 2.8V
82 VIN = 3.8V
80
0
100 200 300 400
Output Current(mA)
500
Output Voltage
vs. Input Voltage
3.6
3.4
3.2 100μA
3
2.8
2.6
2.4
2.2
2
2.6
300mA
150mA
500mA
VOUT = 2.8V
CIN = COUT = 1μF
3 3.4 3.8 4.2 4.6 5 5.4 5.8
INPUT VOLTAGE (V)
Output Noise Spectral Density
10
1
0.1
0.01
VIN = 4.5V
COUT = 1µF
VOUT = 1.8V
ILOAD = 50mA
CBYP = 0.1µF
0.001
10
100
1,000
10,000 100,000 1,000,000 10,000,000
FREQUENCY (Hz)
October 27, 2015
5
Revision 2.0
5 Page 
Micrel, Inc.
PCB Layout Recommendations
MIC5353
TOP LAYER
October 27, 2015
BOTTOM LAYER
11
Revision 2.0
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet MIC5353.PDF ] | |
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