MIC2207 _ BDTIC a Leading Distributor in China

MIC2207

The Micrel MIC2207 is a high efficiency PWM buck (step-down) regulators that provides up to 3A of output current. The MIC2207 operates at 2MHz and has proprietary internal compensation that allows a closed loop bandwidth of over 200kHz.Â

The low on-resistance internal p-channel MOSFET of the MIC2207 allows efficiencies over 94%, reduces external components count and eliminates the need for an expensive current sense resistor.

The MIC2207 operates from 2.7V to 5.5V input and the output can be adjusted down to 1V. The devices can operate with a maximum duty cycle of 100% for use in low-dropout conditions.

The MIC2207 is available in the exposed pad 12-pin 3mm x 3mm MLF^® package with a junction operating range from -40°C to +125°C.

Features

2.7V to 5.5V supply voltage
2MHz PWM mode
Output current to 3A
>94% efficiency
100% maximum duty cycle
Adjustable output voltage option down to 1V
Ultra-fast transient response
Ultra-small external components stable with a 1µH inductor and a 4.7µF output capacitor
Fully integrated 3A MOSFET switch
Micropower shutdown
Thermal shutdown and current limit protection
Pb-free 12-pin 3mm x 3mm 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) 2.7	2.7
Input Voltage Range Max (V) 5.5	5.5
Output Voltage Range Min (V) 1	1
Output Voltage Range Max (V) 5.5	5.5
Output Current (A) max 3	3
Quiescent Current (mA) typ 0.57	0.57
Switching Frequency (kHz) 2000	2000
Synchronous Rectifier Yes	Yes
Operating Temp Range -40 to 125	-40 to 125
Vfb (V) 1	1
Duty Cycle Max (%) 1	1
SHUTDOWN Current (µA) (Typ) 2	2

Documents

MIC2207 - 3mm x 3mm 2MHz 3A PWM Buck Regulator	Data Sheets	11/05/2015	565KB
Micrel AN 39 - How to Power GSM/GPRS/EDGE/3G/HSPA M2M Modems	AppNote	10/01/2015	1403KB
Micrel ANLPS300 - How to Power GSM/GPRS/EDGE/3G/HSPA M2M Modems	AppNote	11/16/2015	1403KB