NCP1593AGEVB ON Semiconductor, NCP1593AGEVB Datasheet

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NCP1593AGEVB

Manufacturer Part Number
NCP1593AGEVB
Description
Power Management IC Development Tools 3A SYNCHRONOUS BUCK REGULATOR
Manufacturer
ON Semiconductor
Type
PWM Controllersr
Datasheet

Specifications of NCP1593AGEVB

Rohs
yes
Product
Evaluation Boards
Tool Is For Evaluation Of
NCP1593
Input Voltage
4 V to 5.5 V
Output Voltage
1.2 V
Output Current
3 A
November 2011, Rev.0
The NCP1593 is a fixed 1 MHz, high−output−current, synchronous PWM converter that integrates a low−resistance,
high−side P−channel MOSFET and a low−side N−channel MOSFET. The NCP1593 utilizes internally compensated
current mode control to provide good transient response, ease of implementation and excellent loop stability. It
regulates input voltages from 4.0 V to 5.5 V down to an output voltage as low as 0.6 V and is able to supply up to 3 A
of load current. The NCP1593 includes an internally fixed switching frequency, and an internal soft−start to limit
inrush current. Other features include cycle−by−cycle current limiting, 100% duty cycle operation, short− circuit
protection, power saving mode and thermal shutdown.
Circuit Description
NCP1593AGEVB
NCP1593AGEVB
PCB
NCP1593A
NCP1593B
Device
DC-DC Converter Dimensions
Oscillator Frequency
Evaluation Boards for NCP1593
Peak Efficiency
Characteristic
Output Voltage
Output Current
PCB Layers
Synchronous Buck Regulator
4.0 to 5.5 V
Voltage
Input
DN05024/D
DC
www.onsemi.com
Voltage
Output
1.2 V
DC
1.05
Min Typ Max
0
Current
Design Note – DN05024/D
Output
3 A
1.0
96
2
1.8” X 2.6“
3.3
4
3
Synchronous
Topology
MHz
Unit
Buck
%
A
V
Isolation
NONE
I/O
1

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NCP1593AGEVB Summary of contents

Page 1

... PCB Device NCP1593AGEVB NCP1593A NCP1593AGEVB NCP1593B Oscillator Frequency DC-DC Converter Dimensions Circuit Description The NCP1593 is a fixed 1 MHz, high−output−current, synchronous PWM converter that integrates a low−resistance, high−side P−channel MOSFET and a low−side N−channel MOSFET. The NCP1593 utilizes internally compensated current mode control to provide good transient response, ease of implementation and excellent loop stability ...

Page 2

Figure 1: Schematic and TOP Layer with Silkscreen November 2011, Rev.0 DN05024/D Top www.onsemi.com 2 ...

Page 3

Figure 2: Drill Drawing with Dimensions November 2011, Rev.0 DN05024/D www.onsemi.com 3 ...

Page 4

Figure 3: Remaining Copper Layers November 2011, Rev.0 DN05024/D Inner Layer 2 Inner Layer 3 Bottom www.onsemi.com 4 ...

Page 5

Basic Buck Power Topology The principle of the Buck converter is fairly simple (see Figure 2): The input voltage source is directly connected to the load through the Buck Inductor when M1 is turned ON. This is referred to as ...

Page 6

Figure 5 – Block Diagram and Pinout November 2011, Rev.0 DN05024/D www.onsemi.com 6 ...

Page 7

... Figure 6: Efficiency vs Output Voltage and Current Disclaimer: ON Semiconductor is providing this design note “AS IS” and does not assume any liability arising from its use; nor does ON Semiconductor convey any license to its or any third party’s intellectual property rights. This document is provided only to assist customers in evaluation of the referenced circuit implementation and the recipient assumes all liability and risk associated with its use, including, but not limited to, compliance with all regulatory standards ...

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