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PDF NCP5269 Data sheet ( Hoja de datos )
| Número de pieza | NCP5269 | |
| Descripción | Synchronous Buck Controller | |
| Fabricantes | ON Semiconductor | |
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NCP5269
Synchronous Buck
Controller with Auto Power
Saving Mode and 2-Bit VID
Inputs for System Agent
NCP5269 is a synchronous buck controller that is optimized for
converting the battery voltage or adaptor voltage into power supply
rails required in notebook and desktop system. NCP5269 is designed
for applications requiring dynamically selected slew−rate controlled
output voltages. The soft−start is programmed by a single capacitor.
Voltage identification logic−inputs select four resistor programmed
set−point reference voltages that directly set the output voltage of the
converter between 0.65 V to 1.5 V. NCP5269 supports high efficiency,
fast transient response and provides power good signal. ON
Semiconductor proprietary adaptive−ripple control enables seamless
transition from CCM to DCM, where converter runs at reduced
switching frequency with much higher efficiency. The part operates
with input voltage ranging from 3.3 V to 28 V. NCP5269 is available
in a 20−pin 3 mm x 3 mm QFN package.
Features
• Wide Input Voltage Range: from 3.3 V to 28 V
• Three Selectable Fixed Frequency 300 kHz, 400 kHz or 600 kHz
• 2−Bit VID Selects Four Independent Voltages from 0.65 V to 1.5 V
• ±1.0% System Accuracy
• Differential Remote Output Voltage Sensing
• Soft Transient Control Reduces Inrush Current and Audio Noise
• Build−in Power−Good Masking Supports Voltage Identification
(VID) On−The−Fly Transients
• Simple Resistor Programming Voltage Levels
• Programmable Soft−Start through a Single Capacitor
• Automatic Power−Saving Mode
• Input Supply Voltage Feed Forward Control
• Resistive or Lossless Inductor’s DCR Current Sensing
• Over−Temperature Protection
• Built−in Adaptive Gate Drivers
• Output Discharge Operation
• Built−in Over−Voltage, Under−Voltage and Over−Current Protection
and Power Good Output
• This is a Pb−Free Device
Applications
• Notebooks, Desktops & Servers
• I/O Supplies
• System Power Supplies
• Graphic Cards
http://onsemi.com
MARKING
DIAGRAM
20 PIN QFN, 3x3
MN SUFFIX
CASE 485BC
5269
ALYWG
G
5269
A
L
Y
W
G
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
EN
VCC
VID1
VID0
V3
1
AGND
BST
GH
SWN
VCCP
GL/FSET
(Top View)
ORDERING INFORMATION
Device
NCP5269MNTWG
Package
QFN20
(Pb−Free)
Shipping†
3000 /
Tape & Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2013
July, 2013 − Rev. 3
1
Publication Order Number:
NCP5269/D
1 page  
NCP5269
Table 3. ELECTRICAL CHARACTERISTICS
(VCC = VCCP = 5.0 V, Vout = 1.0 V, TA = +25°C for typical value; −40°C < TA < 100°C for min/max values unless noted otherwise)
Parameter
Symbol
Test Conditions
Min Typ Max Units
POWER SUPPLY
VCC Operation Voltage
VCCP Operation Voltage
VOLTAGE MONITORING & PROTECTION
VCC
VCCP
4.5 5 5.5 V
4.5 5 5.5 V
VCC Start Threshold
3.9 4.2 4.45 V
VCC UVLO Hysteresis
300 350 400 mV
Power Good Low Voltage
Power Good High Leakage Current
IPG(sink) = 4 mA
230 300 mV
1.0 mA
Power Good Startup Delay (Note 2)
Measure from SSEND to PG
pos edge
3.3 ms
Power Good Propagation Delay
Delay for power good in
3.3 ms
Power Good Threshold
Delay for power good out
Power Good in from high
1.5
101.5 105 107.5
ms
%
Power Good in from low
92.5 95 98.5 %
PG hysteresis
5%
Power Good Masking Time
Triggered by any VID Change
425 ms
FB Overvoltage Threshold
VOVFB−VID Relative to nominal VID Voltage 150 200 250 mV
Overvoltage Propagation Delay
1.5 ms
FB Over Voltage Threshold During Soft−
Start
2.0 V
FB Under−Voltage Trip Threshold
Undervoltage Protection Blanking Time
SUPPLY CURRENT
VUVFB−VID Relative to nominal VID Voltage
−360
−300
3.3
−240
mV
ms
VCC Quiescent Current
IVCC
Vskip = 0 V, VFB = 1.5 V, EN = 5.0
(No Switching),
GH and GL are open
3.9 5 mA
VCC Shutdown Supply Current
VCCP Quiescent Current
IVCC_SD
IVCCP
EN = 0 V
Vskip = 0 V, VFB = 1.5 V, EN = 5.0
(No Switching),
GH and GL are open
3 mA
0.3 mA
VCCP Shutdown Supply Current
BST Quiescent Current
IVCCP_SD
IBST
EN = 0 V
Vskip = 0 V, VFB = 1.5 V, EN = 5.0
(No Switching),
GH and GL are open
1 mA
0.33 mA
BST Shutdown Supply Current
FEEDBACK VOLTAGE
IBST_SD
EN = 0, BST = 5 V, SWN = 0
1 mA
Reference Voltage
System Accuracy
Feedback Voltage Line Regulation
VREF
VID0 = VID1 = High,
PWM in CCM mode,
−40°C < TA < 100°C
TA = 25°C
Vcc = 4.5 V ~ 5.5 V
0.65
−1.0
+1.0
V
%
−0.35
+0.35
0.75
%
%/V
2. Guaranteed by characterization or correlation, not production tested
http://onsemi.com
5
5 Page 
NCP5269
PACKAGE DIMENSIONS
QFN20 3x3, 0.4P
CASE 485BC
ISSUE O
ÍÍÍPIN ONE
ÍÍÍÍÍÍREFERENCE
D
AB
E
LL
L1
DETAIL A
ALTERNATE TERMINAL
CONSTRUCTIONS
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. DIMENSION b APPLIES TO PLATED
TERMINAL AND IS MEASURED BETWEEN
0.15 AND 0.30mm FROM TERMINAL.
4. COPLANARITY APPLIES TO THE EXPOSED
PAD AS WELL AS THE TERMINALS.
MILLIMETERS
DIM MIN MAX
2X 0.10 C
2X 0.10 C
0.05 C
TOP VIEW
DETAIL B
A3
ÉÉÉÉÉÉ ÉÇÇÉÇÇEXPOSED Cu
MOLD CMPD
A1
A3
A 0.80 1.00
A1 --- 0.05
A3 0.20 REF
b 0.15 0.25
D 3.00 BSC
D2 1.70 1.90
E 3.00 BSC
E2 1.70 1.90
0.05 C
NOTE 4
A1
SIDE VIEW
A
C
SEATING
PLANE
DETAIL B
ALTERNATE
CONSTRUCTIONS
e 0.40 BSC
K 0.30 REF
L 0.20 0.40
L1 0.00 0.15
SOLDERING FOOTPRINT*
DETAIL A
D2
20X
0.52
6
20X K
1
11
E2
1
2X 3.30
2X 1.86
20X L
e 16
BOTTOM VIEW
20X b
0.07 C A B
0.05 C NOTE 3
0.40
PITCH
20X
0.26
DIMENSIONS: MILLIMETERS
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an 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: 303−675−2176 or 800−344−3867 Toll Free USA/Canada
Email: [email protected]
N. American Technical Support: 800−282−9855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−5817−1050
http://onsemi.com
11
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local
Sales Representative
NCP5269/D
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet NCP5269.PDF ] | |
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