Specification	MIC24420YML-TR

Clock Sync	False
Control Features	Enable, Power Good
Duty Cycle (Max) [Max]	76 %
Frequency - Switching	1 MHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Phases	2
Output Type	Transistor Driver
Package / Case	24-MLF®, 24-VFQFN Exposed Pad
Supplier Device Package	24-MLF® (4x4)
Synchronous Rectifier	False
Topology	Buck
Voltage - Supply (Vcc/Vdd) [Max]	15 V
Voltage - Supply (Vcc/Vdd) [Min]	4.5 V

MIC24420 Series

Dual 1MHz 2.5A PWM Sync Buck Regulator

Part	Synchronous Rectifier	Operating Temperature [Min]	Operating Temperature [Max]	Frequency - Switching	Number of Outputs	Output Configuration	Output Type	Supplier Device Package	Function	Duty Cycle (Max) [Max]	Output Phases	Mounting Type	Control Features	Package / Case	Topology	Clock Sync	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]
Microchip Technology MIC24420YML-TR		-40 °C	125 ¯C	1 MHz	2	Positive	Transistor Driver	24-MLF® (4x4)	Step-Down	76 %	2	Surface Mount	Enable Power Good	24-MLF® 24-VFQFN Exposed Pad	Buck		15 V	4.5 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 2.91
	Digi-Reel®	1	$ 2.91
	Tape & Reel (TR)	5000	$ 2.20
Microchip Direct	T/R	1	$ 2.91
		25	$ 2.42
		100	$ 2.20
		1000	$ 2.13
		5000	$ 2.11
		10000	$ 2.07

Description

General part information

MIC24420 Series

The MIC24420/MIC24421 are synchronous PWM dual output step down converters with internal 2.5A high-side switches. The MIC24420/MIC24421 has an integrated low-side gate driver for synchronous step-down conversion by connecting an external N-channel MOSFET to achieve high efficiencies in low duty-cycle applications.

The MIC24420 switching frequency is 1MHz and the MIC24421 switching frequency is 500kHz. A patented control scheme allows the use of a wide range of output capacitance from small ceramic capacitors to large electrolytic types with only one compensation component. A 2% output voltage tolerance over the temperature range allows the maximum level of system performance. The MIC24420/MIC24421 power good signal allows full control for sequencing the output voltages with minimum external components.

An adjustable current limit allows the use of smaller inductors in lower current applications. The MIC24420/MIC24421 has an operating junction temperature range of -40°C to +125°C.