LQH4C100K04 MPS [Monolithic Power Systems], LQH4C100K04 Datasheet - Page 5

• Manufacturer Part Number: LQH4C100K04
• Description: 1.6MHz Synchronous Step-Down plus 200mA LDO
• Manufacturer: MPS [Monolithic Power Systems]

TYPICAL PERFORMANCE CHARACTERISTICS
V
T
MP2101 Rev. 1.0
8/18/2006
A
IN
= +25°C, unless otherwise noted.
= 3.6V, V
1.56
1.54
1.52
1.50
1.48
100
0.5
0.4
0.3
0.2
0.1
0.0
90
80
70
60
50
40
30
20
10
0
10
0
0
LDO Dropout vs
Load Current
Output Voltage vs
Load Current
V
PSRR vs
Frequency
OUT2
100
50
40
LOAD CURRENT (mA)
LOAD CURRENT (mA)
OUT1
TM
= 1.5V
FREQUENCY (Hz)
100
= 1.8V, V
1K
80
V
IN
=3.3V
150
120
10K
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
100K
LDO
OUT2
200
160
= 1.2V, C
250
200
MP2101 – 1.6MHz SYNCHRONOUS STEP-DOWN PLUS 200mA LDO
1M
PWROK
2V/div.
2V/div.
1V/div.
1V/div.
V
V
2.53
2.52
2.51
2.50
2.49
OUT1
OUT2
1.8
1.7
1.6
1.5
1.4
1.3
EN
© 2006 MPS. All Rights Reserved.
IN1
4.0
0
Output Voltage vs
Load Current
V
Frequency vs
Input Voltage
www.MonolithicPower.com
Enable Turn On
EN = 3.6V, I
I
OUT2
OUT2
= 4.7µF, C
4.4
40
LOAD CURRENT (mA)
= 0.1A Resistive Load
INPUT VOLTAGE (V)
= 2.5V
V
IN
OUT1
4.8
80
=3.3V
IN2
= 0.3A,
120
5.2
= 1µF, C
LDO
160
5.6
(continued)
200
6.0
O1
= 10µF, C
PWROK
5V/div.
5V/div.
1V/div.
1V/div.
V
V
1.206
1.205
1.204
1.203
1.202
OUT1
OUT2
0.62
0.61
0.60
0.59
0.58
EN
-40
0
Output Voltage vs
Load Current
Feedback Voltage vs
Temperature
Enable Turn Off
EN = 3.6V, I
I
OUT2
-10
O2
40
LOAD CURRENT (mA)
= 0.1A Resistive Load
TEMPERATURE (°C)
= 1µF, L = 2.2µH,
V
+20 +50 +80
IN
OUT1
=1.8V
80
= 0.3A,
120
FB1
LDO
160
+110
FB2
+140
200
5