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PDF MIC5356 Data sheet ( Hoja de datos )
| Número de pieza | MIC5356 | |
| Descripción | Micropower Linear Regulator | |
| Fabricantes | Micrel Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MIC5356 (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
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MIC5355/6
Dual 500mA µCap Low Dropout,
Micropower Linear Regulator
General Description
The MIC5355/6 is an advanced dual, micropower, low
dropout linear regulator. The MIC5355/6 provides low
quiescent current operation, using only 70μA with both
outputs enabled making it ideal for battery-powered
systems. In shutdown, the quiescent current drops to less
than 1µA. The MIC5355/6 provides two independently-
controlled high-performance 500mA LDOs with typical
dropout voltage of 350mV at rated load. In addition, the
MIC5355/6 is optimized to provide fast load and line
transient performance with low-ESR ceramic output
capacitors, requiring a minimum of only 2.2µF.
The MIC5356 also incorporates an active discharge
feature when the part is disabled that switches in a 30Ω
load to pull down the output of the regulator. The
MIC5355/6 is available in fixed output voltages in a
thermally-enhanced 8-pin ePad MSOP package or 8-pin
ePad 3mm x 3mm MLF® package.
Data sheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
Features
2.5V to 5.5V input voltage range
2% initial output accuracy
Wide output voltage range: 1.0V to 3.3V
Low quiescent current: 38µA per output
Very low quiescent current in shutdown: <1μA typical
µCap stable with 2.2µF ceramic capacitor
Low dropout voltage: 350mV at 500mA
Excellent load/line transient response
Independent logic controlled enable pins
Output discharge circuit: MIC5356
Current and thermal limit protection
Power 8-pin ePad MSOP package or 8-pin ePad 3mm
x 3mm MLF® package
Applications
Smart phones
GPS, PMP, DSC
Notebooks and desktops
Digital TV
Portable electronics
_________________________________________________________________________________________________________________________
Typical Application
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
March 2012
M9999-031512-A
1 page  
Micrel, Inc.
Typical Characteristics
Power Supply Rejection Ratio
-80
-70
250mA
-60
-50
500mA
-40
-30 100µA
-20 VEN = VIN = 2.82V
VOUT = 1.8V
-10 COUT = 2.2µF
0
10
100
1000
10000
FREQUENCY (Hz)
100000
Output Voltage
vs. Output Current (VOUT1)
2.7
2.6
2.5
2.4
2.3
2.2
0
VIN = VEN1 = 3.5V
VOUT1 = 2.5V
CIN = COUT = 2.2μF
100 200 300 400
OUTPUT CURRENT (mA)
500
Ground Current vs. Input
Voltage (Dual Output)
120
105
90 500mA
75
60
45 NO LOAD
30
VOUT1 = 2.5V, VOUT2 = 1.8V
CIN = COUT = 2.2μF
15 VEN1 = VEN2 = VIN
0
2.5 3 3.5 4 4.5 5
5.5
INPUT VOLTAGE (V)
3
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2
2.5
Output Voltage
vs. Input Voltage
100μA
500mA
CIN = COUT = 2.2μF
3 3.5 4 4.5 5
INPUT VOLTAGE (V)
5.5
Output Voltage
vs. Output Current (VOUT2)
2
1.9
1.8
1.7
VIN = VEN2 = 3.5V
VOUT2 = 1.8V
1.6 CIN = COUT = 2.2μF
1.5
0
100 200 300 400
OUTPUT CURRENT (mA)
500
Ground Current
vs. Output Current
120
105
90
DUAL OUTPUT
75
SINGLE OUTPUT
60
45
30 VIN = 3.5V
15 CIN = COUT = 2.2μF
0
0 50 100 150 200 250 300 350 400 450 500
OUTPUT CURRENT (mA)
MIC5355/6
Output Voltage
vs. Input Voltage
2
1.9 100μA
1.8
500mA
1.7
1.6
2.5
CIN = COUT = 2.2μF
3 3.5 4 4.5 5
INPUT VOLTAGE (V)
5.5
Ground Current vs.
Input Voltage (Single Output)
65
60
55
50 500mA
45
40
35
30
25
20 VOUT2 = 1.8V
15
10
5
CIN = COUT = 2.2μF
VEN1 = GND, VEN2 = VIN
0
2.5 3 3.5 4 4.5
NO LOAD
5 5.5
INPUT VOLTAGE (V)
Ground Current
vs. Temperature (Single Output)
70
65 500mA
60
55
50
45
40
35
30
25
20
15
10
5
0
-40
NO LOAD
-20 0
20
VOUT1 =2.5V
VEN1 = VIN = 3V
VEN2 = GND
CIN = COUT = 2.2μF
40 60 80 100 120
TEMPERATURE (°C)
March 2012
5 M9999-031512-A
5 Page 
Micrel, Inc.
Typical Application Schematic
MIC5355/6
Bill of Materials
Item
Part Number
C1, C2, C3 C1005X5R0J225M
U1 MIC5355/6-xxYMME
Notes:
1. TDK: www.tdk.com.
2. Micrel, Inc.: www.micrel.com.
Manufacturer
TDK(1)
Micrel, Inc.(2)
Description
2.2µF ceramic capacitor, 6.3V, X5R, size 0402
Dual 500mA µCap Low-Dropout, Micropower Linear Regulator
Qty.
3
1
March 2012
11 M9999-031512-A
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet MIC5356.PDF ] | |
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