MIC29302A
The MIC29302A is a high-current, low-cost, low-dropout voltage regulator which uses Micrel's proprietary Super βeta PNP® process with a PNP pass element. The 3A LDO regulator features 450mV (full load) dropout voltage and very low ground current. Designed for high-current loads, these devices also find applications in lower current, low dropout-critical systems, where their dropout voltage and ground current values are important attributes.
Along with a total accuracy of ±2% (over temperature, line and load regulation) the regulator features very-fast transient recovery from input voltage surges and output load current changes.
The MIC29302A has an adjustable output which can be set by two external resistors to a voltage between 1.24V to 15V. In addition, the device is fully protected against over current faults, reversed input polarity, reversed lead insertion, and overtemperature operation. A TTL logic enable (EN) pin is available in the MIC29302A to shutdown the regulator. When not used, the device can be set to continuous operation by connecting EN to the input (IN). The MIC29302A is available in the standard and 5-pin TO-263 and TO-252 packages with an operating junction temperature range of −40°C to +125°C.
Features- High current capability
3A over full temperature range
- 3A over full temperature range
- Low dropout voltage of 450mV at full load
- Low ground current
- Accurate 1% guaranteed tolerance
- Extremely fast transient response
- Zero-current shutdown mode
- Error flag signals output out-of-regulation
- Adujstable output voltage
- Available in TO-263-L and TO-252-5L packages
| Parameter|
Parameter Name
Value
| Value | |
Product Type
Single LDOs
|
Single LDOs
| |
# of Out
1
|
1
| |
IOUT #1
|
| |
IOUT #2
|
| |
IOUT #3
|
| |
IOUT #4
|
| |
IOUT (mA)
3000
|
3000
| |
VIN Min (V)
3
|
3
| |
VIN Max (V)
16
|
16
| |
VOUT (V)
Adj
|
Adj
| |
Voltage Drop Typ (mV)
450
|
450
| |
IGND Typ (µA)
6
|
6
| |
Tol Typ %
±1
|
±1
| |
Noise (µV) rms
260
|
260
| |
Soft Start Pin
|
| |
Load Dump
|
| |
Rev Bat
Yes
|
Yes
| |
Reverse Current Protect
Yes
|
Yes
|
|
Documents
| MIC29302A - 3A Fast-Response LDO Regulator | Data Sheets | 11/09/2015 | 708KB | |
|
| Micrel AN 12 - Design Considerations for 5V to 3.3V Pass Regulators | AppNote | 10/01/2015 | 28KB |  |
| Micrel AN 43 - Improving Adjustable Regulator Accuracy | AppNote | 10/01/2015 | 59KB | |
Ordering Information
| Part Number | Leads | Package Type | Temp Range | Packing | 1+ | 26+ | 100+ | 1000+ | 5000+ |
|---|
| MIC29302AWD | 5 | TO-252 | -40C to +125C | TUBE | 1.87 | 1.56 | 1.42 | 1.18 | 1.09 |
| MIC29302AWD-TR | 5 | TO-252 | -40C to +125C | T/R | 1.87 | 1.56 | 1.42 | 1.18 | 1.09 |
| MIC29302AWU | 5 | DDPAK | -40C to +125C | TUBE | 1.95 | 1.63 | 1.48 | 1.23 | 1.14 |
| MIC29302AWU-TR | 5 | DDPAK | -40C to +125C | T/R | 1.95 | 1.63 | 1.48 | 1.23 | 1.14 |
RoHS Information
| PartNumber | DeviceWeight | ShippingWeight | LeadCount | PackageType | PackageWidth | SolderComposition | JEDECIndicator | RoHS | ChinaEFUP |
|---|
| MIC29302AWU | 1.462500 | 2.520000 | 5 | DDPAK | - | Matte Tin | e3 |  |  |
| MIC29302AWU-TR | 1.462500 | 2.053333 | 5 | DDPAK | - | Matte Tin | e3 | | |
| MIC29302AWD | | 0.612500 | 5 | TO-252 | - | Matte Tin | e3 | | |
| MIC29302AWD-TR | | 0.628000 | 5 | TO-252 | - | Matte Tin | e3 | | |
