Series: -
Number of Outputs: 1
PWM Type: -
Synchronous Rectifier: No
Mounting Type: Surface Mount
Operating Temperature: -40°C ~ 85°C
Type: Step-Down (Buck)
Output Type: Fixed
Voltage - Output: 3.3V
Package / Case: TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
Current - Output: 3A
Packaging: Bulk
Manufacturer: Micrel Inc
Supplier Device Package: TO-263-5
Frequency - Switching: 200kHz
Voltage - Input: 4 V ~ 36 V
DescriptionThe MIC4576-3.3BU is designed as one kind of 200kHz simple 3A buck voltage regulator that is available in 3.3V, and 5V fixed output versions or a 1.23V to 33V adjustable output version. MIC4576-3.3BU can be used in (1)Simple high-efficiency step-down (buck) regulator; (2)Efficient preregulator for linear regulat-ors; (3)On-card switching regulators; (4)Positive-to-negative converter (inverting buck-boost); (5)Battery Charger; (6)Negative boost converter; (7)Step-down to 3.3V for Intel Pentium and similar microprocessors.
Features of the MIC4576-3.3BU are:(1)Fixed 200kHz operation; (2)3.3V, 5V, and adjustable output versions; (3)Voltage over specified line and load conditions: Fixed version: +/-3% max. output voltage and Adjustable version: +/-2% max. feedback voltage; (4)Guaranteed 3A switch current; (5)Wide 4V to 36V input voltage range; (6)Wide 1.23V to 33V output voltage range; (7)Requires minimum external components; (8)< 200 uA typical shutdown mode; (9)75% efficiency (adjustable version > 75% typical); (10)Standard inductors are 25% of typical LM2576 values; (11)Thermal shutdown; (12)Overcurrent protection; (13)100% electrical thermal limit burn-in.
The absolute maximum ratings of the MIC4576-3.3BU can be summarized as:(1)Supply Voltage (VIN): +40 V;(2)Shutdown Voltage:0.3V to +36V;(3)Output Switch (VSW), Steady State:1V;(4)Feedback Voltage (VFB): +3.8 V;(5)Storage Temperature:65°C to +150°C;(6)Junction Temperature: +150°C. If you want to know more information such as the electrical characteristics about the MIC4576-3.3BU, please download the datasheet in www.seekic.com or www.chinaicmart.com .
Parameters: | Technical/Catalog Information | MIC4576-3.3BU |
| Vendor | Micrel Inc |
| Category | Integrated Circuits (ICs) |
| Type | Step-Down (Buck) |
| Number of Outputs | 1 |
| Voltage - Input | 4 ~ 36 V |
| Voltage - Output | 3.3V |
| Current - Output | 3A |
| Power - Output | - |
| Package / Case | D²Pak, SMD-220, TO-263 (5 leads + tab) |
| Packaging | Bulk |
| Internal Switch(s) | Yes |
| Synchronous | No |
| Rds (On) | - |
| Operating Temperature | -40°C ~ 85°C |
| Frequency - Switching | 200kHz |
| Lead Free Status | Contains Lead |
| RoHS Status | RoHS Non-Compliant |
| Other Names | MIC4576 3 3BU
MIC457633BU
|
MIC4576-3.3BU Data Sheet
