MIC2178-5.0YWM TR Micrel Inc, MIC2178-5.0YWM TR Datasheet - Page 6

• Manufacturer Part Number: MIC2178-5.0YWM TR
• Description: IC REG SYNCBCK 2.5A 5.0V 20SOIC
• Manufacturer: Micrel Inc
• Type: Step-Down (Buck)r

Specifications of MIC2178-5.0YWM TR

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 5V
• 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: Lead free / RoHS Compliant
• Power - Output: -
• Other names: MIC2178-5.0YWMTR; MIC2178-5.0YWMTR

MIC2178
Block Diagram
M9999-031805
10k
PWM Mode
C
Skip Mode
C
Shutdown
Stop
Enable
0.01µF
R
C
COMP
SYNC
PWM
BIAS
EN
20
19
10
18
13
MIC2178 [Adjustable]
supply Voltage
Oscillator
200kHz
Regulator
Skip-Mode
internal
PWM/
Select
3.3V
Corrective
Ramp
Reset
Pulse
Shutdown
Thermal
UVLO,
R
S
Q
Comp.
PWM
Control
Output
Logic
Comp.
SGND
I
Thresh.
Voltage
LIMIT
Skip-Mode
Comp.
I
LIMIT
V
REF
6
14
1.245V
15
16
17
I
Amp.
SENSE
1.13V
Power Good
P-channel
VIN
N-channel
Comp.
100mΩ
100mΩ
4.5V to 16.5V
1
2
V
IN
9
PWRGD
11
SW
3
8
PGND
4
5
6
7
FB
12
100µF
Bold lines indicate
high current traces
V
OUT
V
IN
* Connect
20k
D
S
GND
L
1.245
C
to P
*
Output Good
OUT
GND
March 2005
R2
R1
Micrel, Inc.
R1
R2
1
V
OUT