Micrel - MIC2601/2 Wide Input Range Boost Regulator

Micrel Unveils First Ever 40V Wide Input Range Boost Regulator

The MIC2601/2 is a 1.2MHz/2MHz, PWM DC/DC boost switching regulator available in a 2mm x 2mm MLF® package. High power density is achieved with the MIC2601/2’s internal 40V/1.2A switch, allowing it to power large loads in a tiny footprint.

The MIC2601/2 implements constant frequency 1.2MHz/2MHz PWM current mode control. The MIC2601/2 offers internal compensation that provides excellent transient response and output regulation performance. The high frequency operation saves board space by allowing small, low-profile external components. The fixed frequency PWM scheme also reduces spurious switching noise and ripple to the input power source.

Soft start reduces in rush current and is programmable via external capacitor.

The MIC2601/2 is available in a 2mm x 2mm 8-pin MLF® leadless package. Both devices have an output over-voltage protection feature.

The MIC2601/2 has an operating junction temperature range of –40°C to +125°C.

Wide input voltage range: 4.5V to 20V

Output voltage adjustable to 40V

1.2A switch current

MIC2601 operates at 1.2MHz

MIC2602 operates at 2MHz

Stable with small size ceramic capacitors

High efficiency

Programmable soft start

>10 µA shutdown current

UVLO

Output over-voltage protection

Over temperature shutdown

8-pin 2mm x 2mm MLF® package

–40°C to +125°C junction temperature range

Click image to view pin configuration

Datasheet RoHS Compliant

Multimedia STB/Antenna

Broadband communications

TFT-LCD bias supplies

Bias supply

Positive output regulators

SEPIC converters

DSL applications

Local boost regulators

Typical Application

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Digi-Key P/N	Micrel P/N	Frequency	Output Over Voltage Protection	Temp. Range	Lead Finish
576-3283-1-ND	MIC2601YML	1.2MHz	40V	–40°C to +125°C	Pb-Free
576-3284-1-ND	MIC2602YML	2MHz	40V	–40°C to +125°C	Pb-Free

Absolute Maximum Ratings⁽¹⁾	Operating Ratings⁽²⁾
Supply Voltage (V_IN) ......................................... 22V	Supply Voltage (V_IN) ........................... 4.5V to 20V
Switch Voltage (V_SW) ....................... –0.3V to +40V	Enable Voltage(V_EN) .............................. 0V to 20V
Enable Voltage (V_EN) ........................... –0.3V to V_IN	Junction Temp. (T_J) ...................... –40°C to +125°C
FB Voltage (V_FB) ................................................. 6V	Junction Thermal Resistance
Ambient Storage Temp. (T_S) .......... –65°C to +150°C	2mm x 2mm MLF-8 (θ_JC) ........................ 90°C/W
ESD Rating ......................................................... 2kV

Notes: Absolute maximum ratings indicate limits beyond which damage to the component may occur. Electrical specifications do not apply when operating the device outside of its operating ratings. The maximum allowable power dissipation is a function of the maximum junction temperature, T_J(Max), the junction-to-ambient thermal resistance, θ_JA, and the ambient temperature, T_A. The maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. The device is not guaranteed to function outside its operating rating.