Loading
Part Number:
Quantity:
Price per Unit (in USD):
Total Amt:
Log in to myMicrochip to access tools and benefits. Sign up in just one minute.
Maximize Your Experience: Reap the Personalized Advantages by Completing Your Profile to Its Fullest! Update Here
Stay in the loop with the latest from Microchip! Update your profile while you are at it. Update Here
Complete your profile to access more resources.Update Here!
true
28V Synchronous Buck Controllers Featuring Adaptive ON-Time Control and Hyper Speed Control™
Overview
Alternate products
Compare Products
(2)
- Current Limit / Short Circuit Protection:1
- Max Duty Cycle (%):85
- Enable Pin:1
- External Clock Sync:0
- Input UVLO Typ (V):4.2
- Internal Compensation:1
- Internal Voltage Bias:1
- Iq Off (µA):0.1
- Input Voltage Max:28
- Output Voltage Max:28
- Input Voltage Min:4.5
- Output Voltage Min:0.6
- Operating Supply Current (mA):1.1
- PFM, Discontinuous, Hyperlight load, or Skip Mode:0
- Package:3mm X 3mm
- Power Good Signal:1
- Soft Start:1
- Supported Outputs:1
- Supported Topologies:COT, Sync. Buck
- Typical Tolerance (%):1
- Hyper Speed Control® architecture enables:
- High delta-V operation (VIN = 28V and VOUT = 0.6V)
- Any Capacitor™ stable
- 4.5V to 28V input voltage
- Adjustable output voltage from 0.6V to 24V
- 200kHz to 650kHz programmable switching frequency
- HyperLight Load® (MIC2125)
- Hyper Speed Control® (MIC2126)
- Enable input and power good output
- Built-in 5V regulator for single-supply operation
- Programmable current limit and "hiccup" mode short-circuit protection
- 7ms internal soft-start, internal compensation, and thermal shutdown
- Supports safe start-up into a pre-biased output
- -40°C to +125°C junction temperature range
- Available in 16-pin 3mm x 3mm QFN package
MIC2125 and MIC2126 are constant-frequency synchronous buck controllers featuring a unique adaptive ON-time control architecture. The MIC2125/6 operates over an input voltage range from 4.5V to 28V and can be used to supply load current up to 25A . The output voltage is adjustable down to 0.6V with a guaranteed accuracy of ±1%. The device operates with programmable switching frequency from 200kHz to 650kHz.
HyperLight Load® architecture provides the same high efficiency and ultra-fast transient response as the Hyper Speed Control® architecture under the medium to heavy loads. It also maintains high efficiency under light load conditions by transitioning to variable frequency, discontinuous conduction mode operation.
The MIC2125/6 offers a full suite of protection features to ensure protection of the IC during fault conditions. These include undervoltage lockout to ensure proper operation under power-sag conditions, internal soft-start to reduce inrush current, "hiccup" mode short-circuit protection, and thermal shutdown.
Use your up or down key to switch images.
Tools And Software
Demo & Evaluation Boards
Library and Firmware
| Tools |
|---|
 The MIC2125/6 Demo Board has been developed to demonstrate the capabilities of the MIC2125/6 device with two adaptive ON-time control architectures:
Hyper Speed Control (MIC2126)
HyperLight Load (MIC2125)
|
["developmentenvironment","Development Environment"] ,
["emulators","Emulator and Debuggers"] ,
["demoevaluationboards","Demo & Evaluation Boards"] ,
["programmerrelations","Programmers"] ,
["thirdpartytools","3rd Party Tools"] ,
["legacy","Legacy"] ,
["softwarelibraries","Library and Firmware"]
referencedesigns,Reference Designs:
codeexamples,Code Examples:
ibisboarddesignfiles,Board Design Files: