Status: | Active |
---|---|
Series: | MIC2177 |
RoHS: | Compliant |
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.
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 mO 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 |
Regulator Type | Step Down (Buck) |
---|---|
pricing | 0 |
Supported Output | 0 |
Minimum Input Voltage (V) | 0 |
Maximum Input Voltage (V) | 16 |
Output Current (mA) Max | 0 |
Maximum Frequency (kHz) | 0 |
Vref (V) | 0 |
Duty Cycle Min (%) | 0 |
Duty Cycle Max (%) | 1 |
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 |
Switch current (A) typ | 0 |
Automotive Rated | No |
SHUTDOWN Current (µA) (Typ) | 1 |
# of Outputs | 1 |
Vfb (V) | 1.245 |
Synchronous Rectifier | Yes |
Pins | Packaging | 20 | SOIC |
Temp Range | -40C to +85C |
Packing Media | Tape and reel (1000) |
JEDEC Indicator | e3 |
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ROHS | Compliant |
China EFUP | Compliant |
Device Weight (g) | 0.542 |
Shipping Weight (kg) | 0.311875 |
Lead Count | 20 |
Package Type | SOIC |
Package Width or Size | .300in |
Soldering Composition | Matte Tin |
2.5A 200Khz Synchronous Switcher 20 Soic .300In T/R Rohs Compliant: Yes |Microchip MIC2177-3.3YWM-TR | Newark Electronics |
Conv DC-DC Single Step Down 4.5V 16.5V 20-Pin WSOIC T/R | Avnet America |
Where can I find additional details, specifications and documents for a MIC2177-3.3YWM-TR?
Additional datasheets, footprints and schematics for MIC2177-3.3YWM-TR are listed on our Part Details page. You can also find images and similar parts to MIC2177-3.3YWM-TR on this page.
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What category does MIC2177-3.3YWM-TR fall under?
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Is the MIC2177-3.3YWM-TR RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
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Authorised distributors including Newark Electronics and Avnet America have stock available or on a lead time for MIC2177-3.3YWM-TR.
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