- RS Stock No.:
- 177-0430
- Mfr. Part No.:
- MIC4576WU
- Brand:
- Microchip
- RS Stock No.:
- 177-0430
- Mfr. Part No.:
- MIC4576WU
- Brand:
- Microchip
Technical Reference
Legislation and Compliance
- COO (Country of Origin):
- US
Product Details
The MIC4575 is a series of easy to use fixed and adjustable BiCMOS step-down (buck) switch-mode voltage regulators. The 200kHz MIC4575 duplicates the pinout and function of the 52kHz LM2575. The higher switching frequency may allow up to a 2:1 reduction in output filter inductor size.
Fixed version: ±3% max. output voltage
Adjustable version: ±2% max. feedback voltage
Guaranteed 1A switch current
Fixed 200kHz operation
3.3V, 5V, and adjustable output versions
Voltage over specified line and load conditions:
Fixed version: ±3% max. output voltage
Adjustable version: ±2% max. feedback voltage
Guaranteed 1A switch current
Wide input voltage range: 4V to 24V
Wide output voltage range: 1.23V to 20V
Requires minimum external components
< 200μA typical shutdown mode
75% efficiency (adjustable version > 75% typical)
Standard inductors and capacitors are 25% of typical LM2575 values.
Thermal shutdown
Overcurrent protection
100% electrical thermal limit burn-in
Adjustable version: ±2% max. feedback voltage
Guaranteed 1A switch current
Fixed 200kHz operation
3.3V, 5V, and adjustable output versions
Voltage over specified line and load conditions:
Fixed version: ±3% max. output voltage
Adjustable version: ±2% max. feedback voltage
Guaranteed 1A switch current
Wide input voltage range: 4V to 24V
Wide output voltage range: 1.23V to 20V
Requires minimum external components
< 200μA typical shutdown mode
75% efficiency (adjustable version > 75% typical)
Standard inductors and capacitors are 25% of typical LM2575 values.
Thermal shutdown
Overcurrent protection
100% electrical thermal limit burn-in
Specifications
Attribute | Value |
---|---|
Maximum Output Current | 3A |
Maximum Output Voltage | 33 V |
Regulator Function | Buck Regulator |
Minimum Output Voltage | 1.23 V |
Minimum Input Voltage | 4 V |
Maximum Input Voltage | 36 V |
Output Type | Adjustable |
Mounting Type | Surface Mount |
Number of Outputs | 1 |
Maximum Switching Frequency | 200 kHz |
Pin Count | 5 |
Package Type | TO-263 |
Switching Regulator | Yes |
Length | 10.29mm |
Maximum Operating Temperature | +85 °C |
Dimensions | 0.405 x 0.36 x 0.17in |
Width | 9.14mm |
Efficiency | 75% |
Height | 4.32mm |
Minimum Operating Temperature | -40 °C |