NCP3102BMNTXG ON Semiconductor, NCP3102BMNTXG Datasheet

IC CONV SYNC BUCK 10A 40QFN

NCP3102BMNTXG

Manufacturer Part Number
NCP3102BMNTXG
Description
IC CONV SYNC BUCK 10A 40QFN
Manufacturer
ON Semiconductor
Type
Step-Down (Buck)r
Datasheet

Specifications of NCP3102BMNTXG

Internal Switch(s)
Yes
Synchronous Rectifier
Yes
Number Of Outputs
1
Voltage - Output
Adj to 0.8V
Current - Output
10A
Frequency - Switching
275kHz
Voltage - Input
4.5 ~ 13.2 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
40-TQFN Exposed Pad
Power - Output
3W
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
NCP3102BMNTXGOSTR
NCP3102
Wide Input Voltage
Synchronous Buck Converter
designed to operate from a 5 V to 13.2 V supply. The device is capable
of producing an output voltage as low as 0.8 V. The NCP3102 can
continuously output 10 A through MOSFET switches driven by an
internally set 275 kHz oscillator. The 40-pin device provides an
optimal level of integration to reduce size and cost of the power
supply. The NCP3102 also incorporates an externally compensated
transconductance error amplifier and a capacitor programmable
soft-start function. Protection features include programmable short
circuit protection and under voltage lockout (UVLO). The NCP3102
is available in a 40-pin QFN package.
Features
Applications
Vin
© Semiconductor Components Industries, LLC, 2008
January, 2008 - Rev. 3
GND
The NCP3102 is a high efficiency, 10 A DC-DC buck converter
Input Voltage Range from 4.5 V to 13.2 V
275 kHz Internal Oscillator
Greater than 90% Maximum Efficiency
Boost Pin Operates to 25 V
Voltage Mode PWM Control
0.8 V $1% Internal Reference Voltage
Adjustable Output Voltage by Resistor Divider
Capacitor Programmable Soft-Start
80% Maximum Duty Cycle
Input Undervoltage Lockout
Resistor Programmable Current Limit
This is a Pb-Free Device
Servers/Networking
DSP and FPGA Power Supply
DC-DC Regulator Modules
Figure 1. Typical Application Diagram
PWRVCC
VCC
COMP/DIS
FB
AGND
NCP3102
CPHS
BG PWRGND
PWRPHS
TGOUT
TGIN
BST
GND
Vout
1
100
95
90
85
80
75
70
65
60
55
50
0
1
See detailed ordering and shipping information in the package
dimensions section on page 16 of this data sheet.
A
WL
YY
WW
G
2
1
= Assembly Location
= Wafer Lot
= Year
= Work Week
40
ORDERING INFORMATION
3
OUTPUT CURRENT (A)
Figure 2. Efficiency
V
= Pb-Free Package
V
IN
IN
PIN CONNECTIONS
http://onsemi.com
= 12 V
= 5.0 V
4
CASE 485AK
(Top View)
5
QFN40
Publication Order Number:
6
7
AWLYYWWG
MARKING
DIAGRAM
NCP3102
8
NCP3102/D
9
10

Related parts for NCP3102BMNTXG

NCP3102BMNTXG Summary of contents

Page 1

NCP3102 Wide Input Voltage Synchronous Buck Converter The NCP3102 is a high efficiency DC-DC buck converter designed to operate from 13.2 V supply. The device is capable of producing an output voltage as low ...

Page 2

VCC 13 POR UVLO 0.8V ref COMP DIS RAMP 17 - FAULT + 0.4V 50mV-550mV VOCTH CPHS PIN FUNCTION DESCRIPTION Pin No Symbol 1-4 , 36-40 PWRPHS 5-12 PWRGND 14,15,19,20,23 AGND 16 ...

Page 3

ABSOLUTE MAXIMUM RATINGS Pin Name Control Circuitry Input Voltage Main Supply Voltage Input Bootstrap Supply Voltage Input Phase Node Phase Node (Bootstrap Supply Return) Current Limit Set Feedback COMP/DISABLE MAXIMUM RATINGS Pin Name Thermal Resistance Junction-to-Ambient (Note 2) Operating Junction ...

Page 4

ELECTRICAL CHARACTERISTICS BST = Characteristic Input Voltage Range Boost Voltage Range Quiescent Supply Current V FB Quiescent Supply Current Supply Current Supply Current V CC Boost Quiescent Current V ...

Page 5

TYPICAL OPERATING CHARACTERISTICS 282 281 280 279 278 in 277 276 276 274 - JUNCTION TEMPERATURE (°C) J Figure 4. Oscillator Frequency (F Temperature 801.5 801 ...

Page 6

General NCP3102 is a high efficiency integrated wide input voltage 10 A synchronous PWM buck converter designed to operate from 13.2 V supply. The output voltage of the converter can be precisely regulated down to 800 ...

Page 7

External Soft-Start The NCP3102 features an external soft-start function, which reduces inrush current and overshoot of the output voltage. Soft-Start is achieved by using the internal current source of ...

Page 8

UVLO FAULT + - PWM OUT UVLO FAULT Figure 15. Block Diagram Careful selection and layout of external components is required, to realize the full benefit of the onboard drivers. The capacitors between V ...

Page 9

During a load step transient the output voltage initially drops due to the current variation inside the capacitor and the ESR. (neglecting ...

Page 10

... OTA, the output (eq. 10) capacitor, output inductor and the output divider. Figure 19 shows the open loop and closed loop gain plots possible to use Compensation Calculator Software Tool from ON Semiconductor website. This tool can be downloaded from http://www.onsemi.com. (eq. 11) A 100 Figure 19 ...

Page 11

NCP3102 RLO10 PWRVCC BG PWRPHS Figure 20. Schematic Diagram of NCP3102 Evaluation Board http://onsemi.com 11 NC COMP FB AGND AGND VCC PWRGND PWRGND PWRGND ...

Page 12

Schematic diagram of the NCP3102 demoboard is shown in Figure 20 and the actual PCB layout is shown in Figure 21. The corresponding bill of material is summarized in Table 3. Parameters of the board were tested with Input voltage ...

Page 13

... MULTICOMP 1 MULTICOMP 1 PHYCOMP 1 PHYCOMP 1 1 TYCO ELECT. 1 WELWYN 1 PHYCOMP 1 VISHAY 1 MULTICOMP 1 MULTICOMP 1 MULTICOMP 1 MULTICOMP 1 MULTICOMP 1 MULTICOMP 1 PHYCOMP 1 PHYCOMP 1 PHYCOMP 1 MULTICOMP 2 KEMET 1 SANYO 1 SANYO 2 KEMET 1 AVX 1 AVX 1 TYCHO ELECT. 1 PHYCOMP 1 PHYCOMP 1 AVX 1 AVX 1 ON Semiconducor 2 ON Semiconducor 1 Coilcraft 3 ON Semiconductor 1 ON Semiconductor ...

Page 14

NCP3102 Figure 21. PCB Layout Evaluation Board (110mm x 100mm) http://onsemi.com 14 ...

Page 15

Measured Performance of NCP3102 Demoboard is Shown in Figures 22 Through 25 25° 70° RESISTANCE (kW) ocp ...

Page 16

... Figure 26. Temperature Conditions (V ORDERING INFORMATION Device NCP3102MNTXG NCP3102BMNTXG †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. NCP3102 = 3 Steady State, No Additional Cooling in out out Package Temperature Grade QFN40 For 0° ...

Page 17

É É É PIN ONE LOCATION É É É É É É É É É TOP VIEW 0.15 C (A3) 0.10 C 0.08 C SIDE VIEW A1 NOTE 40X ...

Page 18

... 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: 303-675-2176 or 800-344-3867 Toll Free USA/Canada   ...

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