MIC22601
The Micrel MIC22601 is a high efficiency 6A Integrated switch synchronous buck (step-down) regulator. The MIC22601 is optimized for highest efficiency (greater than 90%), while still switching at 4MHz over a broad load range with only 0.22 µH inductor and down to 22µF output capacitor. The ultra-high speed control loop keeps the output voltage within regulation even under extreme transient load swings commonly found in FPGAs and low voltage ASICs. The output voltage can be adjusted down to 0.7V to address all low voltage power needs. A full range of sequencing and tracking options is available with the MIC22601. The enable/delay pin, combined with the power good PG/POR pin, allows multiple outputs to be sequenced in any way during turn on and turn off. The RC (Ramp Control™) pin allows the device to be connected to another product in the MIC22xxx and/or MIC68xxx family, to keep the output voltages within a certain ∆V on start up.
The MIC22601 is available in a 24-pin 4mm x 4mm MLF® package with a junction operating temperature range from -40°C to +125°C.
Features- Input voltage range: 2.6V to 5.5V
- 4MHz PWM frequency
- Adjustable output voltage option down to 0.7V
- Output current to 6A
- Small Passive components: 0.22µH and 22µF
- Full sequence and tracking ability
- Power On Reset/Power Good
- Ultra fast transient response
- Easy RC compensation
- 100% maximum duty cycle
- Fully integrated MOSFET switches
- Micro power shutdown
- Thermal shutdown and current limit protection
- 24-pin 4mmx4mm MLF® package
- -40°C to +125°C junction temperature range
| Parameter|
Parameter Name
Value
| Value | |
Regulator Type
Step Down (Buck)
|
Step Down (Buck)
| |
# of Outputs
1
|
1
| |
Input Voltage Range Min (V)
2.6
|
2.6
| |
Input Voltage Range Max (V)
5.5
|
5.5
| |
Output Voltage Range Min (V)
0.7
|
0.7
| |
Output Voltage Range Max (V)
5.5
|
5.5
| |
Output Current (A) max
6
|
6
| |
Quiescent Current (mA) typ
0.85
|
0.85
| |
Switching Frequency (kHz)
4000
|
4000
| |
Synchronous Rectifier
Yes
|
Yes
| |
Operating Temp Range
-40 to 125
|
-40 to 125
| |
Vfb (V)
0.7
|
0.7
| |
Duty Cycle Max (%)
1
|
1
| |
SHUTDOWN Current (µA) (Typ)
5
|
5
|
|
Documents
RoHS Information
| PartNumber | DeviceWeight | ShippingWeight | LeadCount | PackageType | PackageWidth | SolderComposition | JEDECIndicator | RoHS | ChinaEFUP |
|---|
| MIC22601YML-TR | 0.042200 | 0.204000 | 24 | VQFN | 4x4x0.9mm | NiPdAu | e4 |  |  |
