MIC2177-3.3BWM Micrel Inc, MIC2177-3.3BWM Datasheet - Page 6

• Manufacturer Part Number: MIC2177-3.3BWM
• Description: IC REG SYNCBUCK 2.5A 3.3V 20SOIC
• Manufacturer: Micrel Inc
• Type: Step-Down (Buck)r

Specifications of MIC2177-3.3BWM

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 3.3V
• Current - Output: 2.5A
• Frequency - Switching: 200kHz
• Voltage - Input: 4.5 ~ 16.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

Typical Characteristics
Micrel, Inc.
April 2008
5.030
5.020
5.010
5.000
4.990
4.980
4.970
205
200
195
190
185
180
175
5.0
4.9
4.8
4.7
4.6
4.5
4.4
4.3
4.2
4.1
4.0
12
10
8
6
4
2
0
-60 -30
-60 -30
2
-60 -30
SWITCHING
MIC21775.0
4
Oscillator Frequency
OUTPUT
Reference Voltage
TEMPERATURE (°C)
INPUT VOLTAGE (V)
vs. Temperature
TEMPERATURE (°C)
vs. Temperature
Supply Current
TEMPERATURE (°C)
Current Limit
vs. Temperature
6
0
0
PWM-Mode
0
8 10 12 14 16 18
30 60 90 120 150
30 60 90 120 150
30 60 90 120 150
1.252
1.250
1.248
1.246
1.244
1.242
1.240
1.238
19.0
18.5
18.0
17.5
17.0
16.5
16.0
100
250
200
150
100
95
90
85
80
75
70
65
60
50
0
10
-60 -30
-60 -30
2
V
MIC2177 [adj.]
IN
4
OUTPUT CURRENT (mA)
Error-Amplifier Gain
= 5V
Reference Voltage
High-Side Switch
TEMPERATURE (°C)
INPUT VOLTAGE (V)
vs. Temperature
TEMPERATURE (°C)
vs. Temperature
On-Resistance
6
3.3V Output
0
0
Efficiency
100
8 10 12 14 16 18
30 60 90 120 150
30 60 90 120 150
6
PWM
SKIP
12V
8V
1000 2500
125°C
85°C
25°C
0°C
3.320
3.315
3.310
3.305
3.300
3.295
3.290
3.285
3.280
120
100
100
350
300
250
200
150
100
80
60
40
20
95
90
85
80
75
70
50
0
Feedback Input Bias Current
-60 -30
0
10
-60 -30
2
MIC2177-3.3
V
4
OUTPUT CURRENT (mA)
IN
Reference Voltage
TEMPERATURE (°C)
Low-Side Switch
vs. Temperature
INPUT VOLTAGE (V)
TEMPERATURE (°C)
vs. Temperature
= 6V
On-Resistance
6
0
0
5V Output
Efficiency
100
8 10 12 14 16 18
30 60 90 120 150
30 60 90 120 150
PWM
12V
M9999-042108
SKIP
8V
1000 2500
125°C
85°C
25°C
MIC2177
0°C