Specification	NCP1421DMR2G

Current - Output	1.5 A
Frequency - Switching	1.2 MHz
Function	Step-Up
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	8-MSOP, 8-TSSOP
Package / Case	3 mm
Package / Case [custom]	0.118 in
Supplier Device Package	8-MSOP
Synchronous Rectifier	True
Topology	Boost
Voltage - Input (Max) [Max]	5 V
Voltage - Input (Min) [Min]	1 V
Voltage - Output (Max)	5 V
Voltage - Output (Min/Fixed)	1.5 V

NCP1421 Series

Boost Converter, Sync-Rect, PFM, DC-DC, 600 mA, with True-Cutoff and Ring-Killer

Part	Utilized IC / Part	Supplied Contents	Voltage - Output (Max)	Supplier Device Package	Current - Output	Voltage - Output (Min/Fixed)	Voltage - Input (Max) [Max]	Output Configuration	Topology	Output Type	Number of Outputs	Frequency - Switching	Operating Temperature [Max]	Operating Temperature [Min]	Function	Mounting Type	Package / Case	Package / Case [custom]	Package / Case	Voltage - Input (Min) [Min]
ON Semiconductor NCP1421LEDGEVB	NCP1421	Board(s)
ON Semiconductor NCP1421LEDEVB
ON Semiconductor NCP1421DMR2G			5 V	8-MSOP	1.5 A	1.5 V	5 V	Positive	Boost	Adjustable	1	1.2 MHz	85 °C	-40 °C	Step-Up	Surface Mount	8-MSOP 8-TSSOP	0.118 in	3 mm	1 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	$ 1.33
		10	$ 1.19
		25	$ 1.13
		100	$ 0.87
		250	$ 0.77
		500	$ 0.73
		1000	$ 0.57
	Digi-Reel®	1	$ 1.33
		10	$ 1.19
		25	$ 1.13
		100	$ 0.87
		250	$ 0.77
		500	$ 0.73
		1000	$ 0.57
	Tape & Reel (TR)	4000	$ 0.54
		8000	$ 0.52
		12000	$ 0.50
Newark	Each (Supplied on Cut Tape)	2500	$ 0.59
ON Semiconductor	N/A	1	$ 0.53

Description

General part information

NCP1421 Series

NCP1421 is a monolithic micropower high-frequency step-up switching converter IC specially designed for battery- operated hand-held electronic products up to 600 mA loading. It integrates Sync-Rect to improve efficiency and to eliminate the external Schottky Diode. High switching frequency (up to 1.2 MHz) allows for a low profile, small sized inductor and output capacitor to be used. When the device is disabled, the internal conduction path from LX or BAT to OUT is fully blocked and the OUT pin is isolated from the battery. This True-Cutoff function reduces the shutdown current to typically only 50nA. Ring-Killer is also integrated to eliminate the high-frequency ringing in discontinuous conduction mode. In addition to above, Low-Battery Detector, Logic-Controlled Shutdown, Cycle-by Cycle Current Limit and Thermal Shutdown provide value-added features for various battery operated applications. With all these functions ON, the quiescent supply current is typically only 8.5 μA. This device is available in the compact and low Micro8 package.