MP20249DC-MC-LF-Z

MP20249 – DUAL, ULTRA-LOW NOISE, HIGH PSRR 200mA LINEAR REGULATOR
MP20249 Rev1.0 www.MonolithicPower.com 7
12/15/2010 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
V
IN
= (V
OUT
+ 0.5 V) or 2.3V (whichever is greater), EN = V
IN
, I
OUT
= 10mA, V
OUT1
=2.8V, V
OUT2
=1.2V,
C
IN
= C
OUT1,2
= 1µF, T
A
= 25°C, unless otherwise noted.
OUTPUT CURRENT (mA)
PSRR vs. Frenquency
-20
-10
0
10
20
30
40
50
60
70
80
90
100
10 10
2
10
3
10
4
10
5
10
6
10
7
FREQUENCY (Hz)
PSRR (dB)
I
OUT
=50mA
I
OUT
=10mA
I
OUT
=150mA
I
OUT
=100mA
V
OUT
=2.8V
PSRR vs. Frenquency
V
OUT
=1.2V
-20
-10
0
10
20
30
40
50
60
70
80
90
100
10 10
2
10
3
10
4
10
5
10
6
10
7
FREQUENCY (Hz) FREQUENCY (Hz)
PSRR (dB)
PSRR (dB)
I
OUT
=150mA
I
OUT
=10mA
I
OUT
=50mA
I
OUT
=100mA
Channel to Channel
Isolation vs. Frenquency
-20
-10
0
10
20
30
40
50
10 10
2
10
3
10
4
10
5
10
6
0.1
1
10
100
0 25 50 75 100 125 150 175 200
Region of Stable C
OUT
ESR vs. Output Current
Unstable Range
Stable Range
MP20249 – DUAL, ULTRA-LOW NOISE, HIGH PSRR 200mA LINEAR REGULATOR
MP20249 Rev1.0 www.MonolithicPower.com 8
12/15/2010 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
V
IN
= (V
OUT
+ 0.5 V) or 2.3V (whichever is greater), EN = V
IN
, I
OUT
= 10mA, V
OUT1
=2.8V, V
OUT2
=1.2V,
C
IN
= C
OUT1,2
= 1µF, T
A
= 25°C, unless otherwise noted.
V
OUT1
2V/div
V
OUT2
1V/div
V
IN
2V/div
I
IN
200mA/div
V
OUT1
2V/div
V
OUT2
2V/div
V
IN
2V/div
I
IN
200mA/div
V
OUT1
2V/div
V
OUT2
2V/div
EN
5V/div
I
IN
200mA/div
V
OUT1
10mV/div
V
IN
10m/div
V
OUT2
2V/div
2ms/div
2V/div
1s/div
I
OUT
20mA/div
V
OUT1
20mV/div
I
OUT
20mA/div
V
OUT2
50mV/div
Input Power Start Up
Input Power Shut Down
EN Start Up
V
OUT1
2V/div
V
OUT2
2V/div
EN
5V/div
I
IN
200mA/div
EN Shut Down
I
OUT1
=I
OUT2
=200mA
I
OUT1
=I
OUT2
=200mA I
OUT1
=I
OUT2
=200mA I
OUT1
=I
OUT2
=200mA
Line Transient
V
IN
=3V to 6V, V
OUT1
=2.8V
V
OUT2
=1.2V, I
OUT1
=I
OUT2
=200mA
Load Transient
V
IN
=3.3V, V
OUT1
=2.8V
I
OUT
=1mA to 60mA, with Resistor Load
Load Transient
V
IN
=3.3V, V
OUT2
=1.2V
I
OUT
=1mA to 60mA, with Resistor Load
MP20249 – DUAL, ULTRA-LOW NOISE, HIGH PSRR 200mA LINEAR REGULATOR
MP20249 Rev1.0 www.MonolithicPower.com 9
12/15/2010 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
BLOCK DIAGRAM
V
REF
Current
Limit
Current
Limit
Thremal Protection
And control
VIN
VOUT1
VOUT2
EN1
EN2
GND
80
80
Error
Amp
Vref1
Filter
Error
Amp
Vref2
Filter
Enable
Control
Figure 1—Function Block Diagram

MP20249DC-MC-LF-Z

Mfr. #:
Manufacturer:
Monolithic Power Systems (MPS)
Description:
LDO Voltage Regulators 200mA 2-Ch Low Noise High PSRR L Reg
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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