Integrated Circuits (ICs)

NCP1521ASNT1G

Obsolete

ON Semiconductor

IC REG BUCK ADJ 600MA 5TSOP

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Integrated Circuits (ICs)

NCP1521ASNT1G

Obsolete

ON Semiconductor

IC REG BUCK ADJ 600MA 5TSOP

Deep-Dive with AI

DocumentsDatasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	NCP1521ASNT1G

Current - Output	600 mA
Frequency - Switching	1.5 MHz
Function	Step-Down
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	SOT-23-5 Thin, TSOT-23-5
Supplier Device Package	5-TSOP
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	2.7 V
Voltage - Output (Max) [Max]	3.3 V
Voltage - Output (Min/Fixed)	0.9 V

NCP1521B Series

Buck Converter, DC-DC, 1.5 MHz, 600 mA

Part	Voltage - Input (Max) [Max]	Voltage - Output (Max) [Max]	Output Configuration	Frequency - Switching	Number of Outputs	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Input (Min) [Min]	Mounting Type	Supplier Device Package	Output Type	Topology	Package / Case	Current - Output	Function	Voltage - Output (Min/Fixed)	Outputs and Type	Outputs and Type	Main Purpose	Voltage - Output [Min]	Voltage - Output [Max]	Board Type	Regulator Topology	Supplied Contents	Voltage - Input	Utilized IC / Part
ON Semiconductor NCP1521ASNT1G	5.5 V	3.3 V	Positive	1.5 MHz	1	85 °C	-40 °C	2.7 V	Surface Mount	5-TSOP	Adjustable	Buck	SOT-23-5 Thin TSOT-23-5	600 mA	Step-Down	0.9 V
ON Semiconductor NCP1521BSNT1G	5.5 V	3.9 V	Positive	1.5 MHz	1	85 °C	-40 °C	2.7 V	Surface Mount	5-TSOP	Adjustable	Buck	SOT-23-5 Thin TSOT-23-5	600 mA	Step-Down	0.9 V
ON Semiconductor NCP1521BEVB				1.5 MHz										600 mA			Non-Isolated	1	DC/DC Step Down	0.9 V	3.3 V	Fully Populated	Buck	Board(s)	3.6 V	NCP1521

Pricing

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

Distributor	Package	Quantity	$

Description

General part information

NCP1521B Series

The NCP1521B step-down PWM DC-DC converter is optimized for portable applications powered from one cell Li-ion or three cell Alkaline/NiCd/NiMH batteries. The part is available in adjustable output voltage versions ranging from 0.9 V to 3.3 V. It uses synchronous rectification to increase efficiency and reduce external part count. The device also has a built-in 1.5 MHz (nominal) oscillator which reduces component size by allowing smaller inductors and capacitors. Automatic switching PWM/PFM mode offers improved system efficiency. Additional features include integrated soft-start, cycle-by-cycle current limiting and thermal shutdown protection. The NCP1521B is available in space saving, low profile TSOP5 and UDFN6 packages.

Documents

Technical documentation and resources