MIC2169 Micrel Semiconductor, MIC2169 Datasheet - Page 5

• Manufacturer Part Number: MIC2169
• Description: 500 KHZ PWM SYNCHRONOUS BUCK CONTROL IC
• Manufacturer: Micrel Semiconductor

Typical Characteristics
V
November 2003
MIC2169
IN
= 5V
0.806
0.804
0.802
0.800
0.798
0.796
0.794
0.792
2.9
2.7
2.5
2.3
2.1
1.9
1.7
1.5
1.3
1.1
0.9
0.7
0.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
4
3
2
0
1
-40 -20 0 20 40 60 80 100120140
-60 -30
-60 -30
0
PWM Mode Supply Current
Top MOSFET = Si4800
Current Limit Foldback
R
V
CS
V
DD
FB
vs. Temperature
TEMPERATURE ( C)
2
TEMPERATURE ( C)
TEMPERATURE ( C)
= 1k
vs. Temperature
0
Line Regulation
0
vs. Temperature
I
4
30 60 90 120 150
30 60 90 120 150
LOAD
(A)
6
8
10
550
540
530
520
510
500
490
480
470
460
450
260
240
220
200
180
160
140
120
100
2.0
1.5
1.0
0.5
6
5
4
3
2
1
0
-60 -30
-60 -30
0
0
PWM Mode Supply Current
Overcurrent Trip Point
Oscillator Frequency
V
SUPPLY VOLTAGE (V)
vs. Supply Voltage
DD
vs. Temperature
vs. Temperature
TEMPERATURE ( C)
TEMPERATURE ( C)
0
0
Line Regulation
5
5
30 60 90 120 150
30 60 90 120 150
5
V
IN
(V)
10
10
15
15
0.8010
0.8005
0.8000
0.7995
0.7990
0.7985
0.7980
5.02
5.00
4.98
4.96
4.94
4.92
4.90
-0.5
-1.0
-1.5
1.5
1.0
0.5
0
0
0
0
V
Oscillator Frequency
V
DD
5
vs. Supply Voltage
LOAD CURRENT (mA)
FB
Load Regulation
10
Line Regulation
5
5
V
V
IN
IN
15
(V)
(V)
20
10
10
M9999-111803
25
30
15
15
Micrel