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Details for MIC2177YWM by Microchip Technology
MIC2177
MIC2177YWM
Buy Directly from Microchip Technology Inc (2000 in stock) $5.9200
2.5A 200kHz Synchronous Switcher
MIC2177YWM image

MIC2177YWM by Microchip Technology

2.5A 200kHz Synchronous Switcher
Features
4.5V to 16.5V input voltage range
Dual-mode operation for high efficiency (up to 96%)
PWM mode for > 200mA load current
Skip mode for < 200mA load current
100 mΩ internal power MOSFETs at 12V input
200kHz preset switching frequency
Low quiescent current
1.0mA in PWM mode
500µA in skip mode
< 5µA in shutdown mode
100% duty cycle for low dropout operation
Current-mode control
Simplified loop compensation
Superior line regulation
Current limit
Thermal shutdown
Undervoltage lockout
Description

The MIC2177 is a 200kHz synchronous buck (step-down) switching regulator designed for high-efficiency, battery-powered applications.

The MIC2177 operates from a 4.5V to 16.5V input and features internal power MOSFETs that can supply up to 2.5A output current. It can operate with a maximum duty cycle of 100% for use in low-dropout conditions. It also features a shut down mode that reduces quiescent current to less than 5µA.

The MIC2177 achieves high efficiency over a wide output current range by switching between PWM and skip mode. Operating mode is automatically selected according to output conditions. Switching frequency is preset to 200kHz and can be synchronized to an external clock signal of up to 300kHz.

The MIC2177 uses current-mode control with internal current sensing. Current-mode control provides superior line regulation and makes the regulator control loop easy to compensate. The output is protected with pulse-by-pulse current limiting and thermal shutdown. Undervoltage lockout turns the output off when the input voltage is less than 4.5V.

The MIC2177 is packaged in a 20-pin wide power SO package with an operating temperature range of -40°C to +85°C.

See the MIC2178 for externally selected PWM or skip-mode operation.

Specifications
Regulator Type:
Step Down (Buck)
Switching Frequency (kHz):
200
Input Voltage Range Min:
4.5
Input Voltage Range Max:
16.5
Output Current:
2500
Temp Range Min:
-40
Temp Range Max:
85
Vout Min (V):
1.245
Vout Max (V):
16.5
Quiescent Current (mA) typ:
0.5
Light Load Efficiency Mode:
Yes
SHUTDOWN Current (µA) (Typ):
1
# of Outputs:
1
Vfb (V):
1.245
Synchronous Rectifier:
Yes
Duty Cycle Max (%):
1
Temperature Range:
-40C to +85C
Alternate Descriptions
2.5A 200KHZ SYNCHRONOUS SWITCHER 20 SOIC .300IN TUBE Newark Electronics
MCCMIC2177YWM Avnet America
2.5A 200kHz Synchronous Switcher Microchip Technology Inc
MCCMIC2177YWM Avnet Europe
MIC2177 Series 16.5 V 200 kHz 2.5 A Synchronous Buck Regulator - SOIC-20W Future Electronics
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Details for MIC2177YWM by Microchip Technology
MIC2177
MIC2177YWM
Buy Directly from Microchip Technology Inc (2000 in stock) $5.9200
SWITCHING REG BUCK 2.5A 20SOIC
MIC2177YWM image

MIC2177YWM by Microchip Technology

SWITCHING REG BUCK 2.5A 20SOIC
Features
1.0mA in PWM mode
100% duty cycle for low dropout operation
100mu2126 internal power MOSFETs at 12V input
200kHz preset switching frequency
500u00b5A in skip mode
< 5u00b5A in shutdown mode
Current limit
Current-mode control
Dual-mode operation for high efficiency (up to 96%)
Low quiescent current
PWM mode for > 200mA load current
Simplified loop compensation
Skip mode for < 200mA load current
Superior line regulation
Ther
Part Information
MIC2177YWM image
RoHS Compliant
Description
The Micrel MIC2177 is a 200kHz synchronous buck (step- down) switching regulator designed for high-efficiency, battery-powered applications. The MIC2177 operates from a 4.5V to 16.5V input and features internal power MOSFETs that can supply up to 2.5A output current. It can operate with a maximum duty cycle of 100% for use in low-dropout conditions. It also features a shutdown mode that reduces quiescent current to less than 5µA. The MIC2177 achieves high efficiency over a wide output current range by switching between PWM and skip mode. Operating mode is automatically selected according to output conditions. Switching frequency is preset to 200kHz and can be synchronized to an external clock signal of up to 300kHz. The MIC2177 uses current-mode control with internal current sensing. Current-mode control provides superior line regulation and makes the regulator control loop easy to compensate. The output is protected with pulse-by-pulse current limiting and thermal shutdown. Undervoltage lockout turns the output off when the input voltage is less than 4.5V. The MIC2177 is packaged in a 20-pin wide power SO package with an operating temperature range of –40°C to +85°C. See the MIC2178 for externally selected PWM or skip-mode operation.
Specifications
Topology:
Synchronous Buck (Step Down)
Input Voltage Min:
4.5V
Input Voltage Max:
16.5V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
SOIC
No. of Pins:
20Pins
Output Current:
200mA
Output Voltage Min:
1.25V
Output Voltage Max:
16.5V
Switching Frequency:
240kHz
Operating Temperature Max:
85°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 2 - 1 year
SVHC:
No SVHC (15-Jan-2018)
Adjustable Output Voltage Max:
3.4V
Adjustable Output Voltage Min:
3.2V
Base Number:
2177
Frequency:
200kHz
Operating Temperature Min:
-40°C
Operating Temperature Range:
-40°C to +85°C
Primary Input Voltage:
16.5V
Supply Voltage Min:
4.5V
Switch Output Current Isw Max:
6A
Termination Type:
Surface Mount Device
Voltage Regulator Type:
Synchronous Buck
Alternate Descriptions
2.5A 200KHZ SYNCHRONOUS SWITCHER 20 SOIC .300IN TUBE Newark Electronics
MCCMIC2177YWM Avnet America
2.5A 200kHz Synchronous Switcher Microchip Technology Inc
MCCMIC2177YWM Avnet Europe
MIC2177 Series 16.5 V 200 kHz 2.5 A Synchronous Buck Regulator - SOIC-20W Future Electronics