MIC2194BM Micrel Inc, MIC2194BM Datasheet - Page 5

• Manufacturer Part Number: MIC2194BM
• Description: IC PWM BUCK BST CM 8SOIC
• Manufacturer: Micrel Inc

Specifications of MIC2194BM

• Duty Cycle: 100%
• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 440kHz
• Voltage - Supply: 2.9 V ~ 14 V
• Buck: Yes
• Boost: Yes
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 8-SOIC (3.9mm Width)
• Frequency-max: 440kHz
• Number Of Pwm Outputs: 1
• On/off Pin: Yes
• Adjustable Output: Yes
• Topology: Boost/Buck
• Switching Freq: 440KHz
• Operating Supply Voltage (max): 14V
• Synchronous Pin: No
• Rise Time: 25ns
• Fall Time: 25ns
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 8
• Package Type: SOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Typical Characteristics
April 2005
MIC2194
3.05
3.03
3.01
2.99
2.97
2.95
2.93
2.91
2.89
2.87
2.85
1.29
1.28
1.27
1.26
1.25
1.24
1.23
1.22
1.21
130
125
120
115
110
105
100
4.5
3.5
2.5
1.5
0.5
1.3
1.2
95
90
Error Amp Reference Voltage
-40 -20 0 20 40 60 80 100 120
4
3
2
1
0
0
0
0
Overcurrent Threshold vs.
V
V
V
V
IN
V
IN
IN
2
0.2
IN
DD
Quiescent Current
= 5V
= 3.3V
INPUT VOLTAGE (V)
= 5V
vs. Input Voltage
TEMPERATURE ( C)
INPUT VOLTAGE (V)
= 12V
vs. Temperature
LOAD CURRENT (mA)
4
V
Input Voltage
0.4
DD
5
6
vs. Load
0.6
Switching
8
0.8
10
10 12 14
Standby
1
1.2
15
3.50
3.40
3.30
3.20
3.10
3.00
2.90
2.80
2.70
2.60
2.50
-0.5
-1.5
120
115
110
105
100
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.5
95
90
85
80
-1
-2
0
-40 -20 0 20 40 60 80 100 120
-40 -20 0 20 40 60 80 100 120
0
-40 -20 0 20 40 60 80 100 120
0
Current Limit Threshold
V
Frequency Variation
2
Quiescent Current
DD
TEMPERATURE ( C)
TEMPERATURE ( C)
vs. Input Voltage
INPUT VOLTAGE (V)
TEMPERATURE ( C)
vs. Temperature
vs. Temperature
4
vs. Temperature
5
6
8
V
V
10 12 14
V
IN
IN
IN
= 5V
= 5V
= 5V
1.2455
1.2450
1.2445
1.2440
1.2435
1.2430
3.05
3.00
2.95
2.90
2.85
2.80
450
440
430
420
410
400
390
380
370
360
350
4.5
3.5
2.5
1.5
0.5
Error Amp Reference Voltage
-50 -30 -10 10 30 50 70 90 110
4
3
2
1
0
0
0
0
Frequency Variation vs.
OUTP Drive Impedance
V
2
2
DD
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
vs. Input Voltage
TEMPERATURE ( C)
vs. Input Voltage
INPUT VOLTAGE (V)
4
4
Temperature
vs. Input Voltage
5
6
6
8
8
10
10 12 14
10 12 14
Source( )
Sink ( )
V
IN
= 5V
MIC2194
15
Micrel