MIC38C43ABMM Micrel Inc, MIC38C43ABMM Datasheet - Page 3

• Manufacturer Part Number: MIC38C43ABMM
• Description: IC CTRLR PWM CURRENT MODE 8-MSOP
• Manufacturer: Micrel Inc

Specifications of MIC38C43ABMM

• Pwm Type: Current Mode
• Number Of Outputs: 1
• Frequency - Max: 500kHz
• Duty Cycle: 96%
• Voltage - Supply: 7.6 V ~ 20 V
• Buck: Yes
• Boost: Yes
• Flyback: Yes
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Frequency-max: 500kHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

MIC38C42A/43A/44A/45A
Pin Configuration
Pin Description
April 2005
Pin Number
1
2
3
4
5
6
7
8
Pin Name
COMP
RT/CT
VREF
ISNS
GND
OUT
VDD
FB
COMP
RT/CT
ISNS
FB
8-Lead MM8™ (MM)
Pin Function
Compensation: Connect external compensation network to modify the error
amplifier output.
Feedback (Input): Error amplifier input. Feedback is 2.5V at desired output
voltage.
Current Sense (Input): Current sense comparator input. Connect to current
sensing resistor or current transformer.
Timing Resistor/Timing Capacitor: Connect external RC network to select
switching frequency.
Ground: Combined analog and power ground.
Power Output: Totem-pole output.
Analog Supply (Input): Controller circuitry supply input. Return to analog
ground (AGND).
5V Reference (Output): Connect external RC network.
1
2
3
4
8-Lead SOIC (M)
MIC38C4xA
3
8
7
6
5
VREF
VDD
OUT
GND
M9999-042205
Micrel, Inc.