This part is covered in Fairchild's TinyCalc Calculator™ for the design of TinyBuck™-based regulators.

The FAN2103 TinyBuck™ is an easy-to-use, cost- and space-efficient, 3A synchronous buck solution. It enables designers to solve high current requirements in a small area with minimal external components.

External compensation, programmable switching frequency, and current limit features allow for design optimization and flexibility.

The summing current mode modulator uses lossless current sensing for current feedback and over-current, and includes voltage feedforward.

Fairchild’s advanced BiCMOS power process, combined with low R_DS(ON) internal MOSFETs and a thermally efficient MLP package provide the ability to dissipate high power in a small package.

Output over-voltage, under-voltage, and thermal shutdown protections plus power-good, help protect the devices from damage during fault conditions.

• Fairchild 1,000 piece Budgetary Pricing
• If there is no sample button displayed at the top of the page, please contact one of the Fairchild distributors or your local sales office to obtain samples.
• Top mark packaging information for product FAN2103 is available.

Product	Product status	Eco Status	Pricing*	Package type	Leads	Packing method	Package Drawing	Package Marking Convention**
FAN2103EMPX	Full Production	Green	$1.23	MLP 5x6	25	TAPE REEL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: 2103EMP Line 3: C
FAN2103MPX	Full Production	Green	$1.03	MLP 5x6	25	TAPE REEL		Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: 2103MP Line 3: C