NCP1582DR2GEVB ON Semiconductor, NCP1582DR2GEVB Datasheet

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NCP1582DR2GEVB

Manufacturer Part Number
NCP1582DR2GEVB
Description
EVAL BOARD FOR NCP1582DR2G
Manufacturer
ON Semiconductor
Datasheets

Specifications of NCP1582DR2GEVB

Design Resources
NCP1582 EVB BOM NCP1582 EVB Schematic NCP1582DR2GEVB Gerber Files
Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Voltage - Output
0.8V
Voltage - Input
4.5 ~ 12 V
Regulator Topology
Buck
Frequency - Switching
350kHz
Board Type
Fully Populated
Utilized Ic / Part
NCP1582
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output
-
Power - Output
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
NCP1582DR2G
Other names
NCP1582DR2GEVBOS
NCP1582, NCP1582A,
NCP1583
Low Voltage Synchronous
Buck Controllers
a 5 V or 12 V supply. This device is capable of producing an output
voltage as low as 0.8 V. This 8−pin device provides an optimal level of
integration to reduce size and cost of the power supply. Features include a
0.7 A gate driver and an internally set 350 kHz (NCP1582, NCP1582A)
and a 300 kHz (NCP1583) oscillator. The NCP158x also incorporates an
externally compensated transconductance error amplifier and a
programmable soft−start function. Protection features include short
circuit protection (SCP) and under voltage lockout (UVLO). The
NCP158x comes in an 8−pin SOIC package.
Features
Applications
© Semiconductor Components Industries, LLC, 2008
October, 2008 − Rev. 3
The NCP158x is a low cost PWM controller designed to operate from
Oscillator
Input Voltage Range from 4.5 V to 13.2 V
350 kHz (NCP1582, NCP1582A), 300 kHz (NCP1583) Internal
Boost Pin Operates to 30 V
Voltage Mode PWM Control
0.8 V $1.5% Internal Reference Voltage
Adjustable Output Voltage
Programmable Soft−Start
Internal 0.7 A Gate Drivers
80% Max Duty Cycle
Input UVLO
R
These are Pb−Free Devices
Graphics Cards
Desktop Computers
Servers/Networking
DSP and FPGA Power Supply
DC−DC Regulator Modules
DS(on)
Current Sensing for Short Circuit Protection
Figure 1. Typical Application Diagram
FB
COMP/DIS
GND
V
CC
PHASE
BST
BG
TG
1
V
V
OUT
IN
NCP1583
†For information on tape and reel specifications,
NCP1582
NCP1582A
NCP1582DR2G
NCP1582ADR2G
NCP1583DR2G
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
8
NCP158x
Series
Device
1
ORDERING INFORMATION
GND
BST
BG
TG
x
A
L
Y
W = Work Week
G
PIN CONNECTIONS
http://onsemi.com
CASE 751
D SUFFIX
= 2, 2A or 3
= Assembly Location
= Wafer Lot
= Year
= Pb−Free Device
SOIC−8
1
2
3
4
Frequency
Oscillator
350 kHz
350 kHz
300 kHz
(Top View)
(Pb−Free)
(Pb−Free)
(Pb−Free)
Package
SOIC−8
SOIC−8
SOIC−8
Publication Order Number:
MARKING DIAGRAM
8
1
8 PHASE
7 COMP/DIS
6 FB
5 V
SCP Trip Voltage
2500/Tape & Reel
2500/Tape & Reel
2500/Tape & Reel
ALYW
158x
Shipping
CC
−350 mV
−450 mV
−350 mV
G
NCP1582/D

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NCP1582DR2GEVB Summary of contents

Page 1

NCP1582, NCP1582A, NCP1583 Low Voltage Synchronous Buck Controllers The NCP158x is a low cost PWM controller designed to operate from supply. This device is capable of producing an output voltage as low as 0.8 ...

Page 2

Figure 2. Typical VGA Card Application Diagram 0 REF COMP/DIS 3 BST FB COMP/DIS TG PHASE BG GND POR UVLO FAULT LATCH FAULT + R PWM - ...

Page 3

PIN FUNCTION DESCRIPTION Pin No. Symbol 1 BST Supply rail for the floating top gate driver. To form a boost circuit, use an external diode to bring the desired input voltage to this pin (cathode connected to BST pin). Connect ...

Page 4

ELECTRICAL CHARACTERISTICS 1.0 nF(REF:NTD30N02), for min/max values unless otherwise noted Characteristic Input Voltage Range Boost Voltage Range Supply Current Quiescent Supply Current Boost Quiescent Current Under Voltage Lockout UVLO Threshold UVLO Hysteresis Switching Regulator ...

Page 5

TYPICAL OPERATING CHARACTERISTICS 380 370 360 350 340 330 320 310 −50 − JUNCTION TEMPERATURE (°C) J Figure 4. Oscillator Frequency (F Temperature 812 808 ...

Page 6

General The NCP158x is an 8−pin PWM controller intended for DC−DC conversion from 5.0 V & buses. The NCP158x has a 0.7 A internal gate driver circuit designed to drive N−channel MOSFETs in a synchronous−rectifier buck topology. The ...

Page 7

PWM OUT Careful selection and layout of external components is required, to realize the full benefit of the onboard drivers. The capacitors between V and GND and between BST CC and SWN must be placed as close as possible to ...

Page 8

Input Capacitor Selection The input capacitor has to sustain the ripple current produced during the on time of the upper MOSFET must have a low ESR to minimize the losses. The RMS value of this ripple is: Iin ...

Page 9

In contrast, smaller values of inductance increase the regulator’s maximum achievable slew rate and decrease the necessary capacitance, at the expense of higher ripple current. The peak−to−peak ...

Page 10

Open Loop, Unloaded Gain A Closed Loop, Unloaded Gain Gain = GMR 1 B Compensation Network 100 1000 10 k 100 k FREQUENCY (Hz) Figure 13. Gain Plot of the Error Amplifier Thermal Considerations The power ...

Page 11

Design Example Switching Frequency F = 350 KHZ SW Output Capacitance mW/Each ESR Output Capacitance C = 6630 mF out = 0.75 mH Output Inductance L out Input Voltage Output Voltage V ...

Page 12

Demo Board PCB Layout http://onsemi.com 12 ...

Page 13

... OPEN 1 OPEN 1 BAS116LT1 1 1 0.75 mH 40N03 2 402 1 OPEN 1 1. OPEN OPEN 1 NCP158x 1 http://onsemi.com 13 MFG PANASONIC TDK TAIYO YUDEN AVX KEMET AVX PANASONIC KEMET − − ON SEMICONDUCTOR TOKO ON SEMICONDUCTOR DALE − DALE − DALE − ON SEMICONDUCTOR ...

Page 14

TYPICAL PERFORMANCE CHARACTERISTICS Figure 16. Start Up Figure 18. Transient Response (0−10 A Step Load) Figure 20. Over Current Protection ( Trip) Figure 17. Gate Waveforms 15 A Load Sustaining Figure 19. Transient Response ...

Page 15

... G C SEATING PLANE −Z− 0.25 (0.010 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. PACKAGE DIMENSIONS SOIC−8 D SUFFIX CASE 751−07 ISSUE 0.10 (0.004 SOLDERING FOOTPRINT* 1 ...

Page 16

... Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303− ...

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