NCP1570

Low Voltage Synchronous Buck Controller

Overview

The NCP1570 is a low voltage buck controller. It provides the control for a DC–DC power solution producing an output voltage as low as 0.985 V over a wide current range. The NCP1570–based solution is powered from 12 V with the output derived from a 5 V supply. It contains all required circuitry for a synchronous NFET buck regulator using the V^2™ control method to achieve the fastest possible transient response and best overall regulation. The NCP1570 operates at a fixed internal 200 kHz frequency and is packaged in an SO–8.

The NCP1570 provides undervoltage lockout protection, Soft Start, Power Good with delay, and built–in adaptive non–overlap.

Features

0.985 V +/- 1.0% Reference
V² Control Topology
200 ns Transient Response
Programmable Soft Start
Power Good
Programmable Power Good Delay
40 ns Gate Rise and Fall Times (3.3 nF Load)
50 ns Adaptive FET Non–Overlap Time
Fixed 200 kHz Oscillator Frequency
Undervoltage Lockout
On/Off Control Through Use of the COMP Pin
Overvoltage Protection through Synchronous MOSFETs
Synchronous N–Channel Buck Design
Dual Supply, 12 V Control, 5 V Power Source

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Pricing ($/Unit)

NCP1570DR2

Obsolete

SOIC-8

751-07

235

REEL

2500

V²

11.4

12.6

200

Price N/A

NCP1570D

Obsolete

SOIC-8

751-07

235

TUBE

V²

11.4

12.6

200

Price N/A

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Distributor		Stock	BUY

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Controllers | NCP1570

Low Voltage Synchronous Buck Controller

Overview

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