NCP565 ON, NCP565 Datasheet

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NCP565

Manufacturer Part Number
NCP565
Description
1.5 A Low Dropout Linear Regulator
Manufacturer
ON
Datasheet

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0
NCP565
1.5 A Low Dropout
Linear Regulator
fixed output voltage or an adjustable voltage down to 0.9 V. The fast
loop response and low dropout voltage make this regulator ideal for
applications where low voltage and good load transient response are
important. Device protection includes current limit, short circuit
protection, and thermal shutdown. The NCP565 is packaged in a 5 pin
D
voltage version.
Features
Typical Applications
July, 2004 − Rev. 8
2
The NCP565 low dropout linear regulator will provide 1.5 A at a
Request
Pb−Free Packages are Available
Ultra Fast Transient Response (t1.0 ms)
Low Ground Current (1.1 mA @ Iload = 1.5 A)
Low Dropout Voltage (0.9 V @ Iload = 1.5 A)
Low Noise (28 mVrms)
0.9 V Reference Voltage
Adjustable Output Voltage from 7.7 V down to 0.9 V
1.2 V Fixed Output Version. Other Fixed Voltages Available on
Current Limit Protection (3.5 A)
Thermal Shutdown Protection (155 C)
Servers
ASIC Power Supplies
Post Regulation for Power Supplies
Constant Current Source
PAK for adjustable voltage version and a 3 pin D
Semiconductor Components Industries, LLC, 2004
2
PAK for fixed
1
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
1
1
2
5
3
ORDERING INFORMATION
http://onsemi.com
xx
A
WL = Wafer Lot
Y
WW = Work Week
G
Tab = Ground
Pin 1. V
ADJUSTABLE
CASE 936A
Tab = Ground
Pin 1. N.C.
CASE 936
= R4 or 12
= Assembly Location
= Year
= Pb−Free
D
FIXED
D
2. Ground
3. V
2
2
PAK
PAK
2. V
3. Ground
4. V
5. Adj
Publication Order Number:
in
out
in
out
DIAGRAMS
MARKING
AWLYWWG
AWLYWWG
P565D2Txx
P565D2Txx
NCP565/D
NC
NC

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NCP565 Summary of contents

Page 1

... Device protection includes current limit, short circuit protection, and thermal shutdown. The NCP565 is packaged pin 2 D PAK for adjustable voltage version and a 3 pin D voltage version ...

Page 2

... V = 0.9 V ref Reference Output Block Stage GND V out GND ref Figure 1. Typical Schematic, Adjustable Output NCP565 Symbol N.C. − V Positive Power Supply Input Voltage in Ground Power Supply Ground V Regulated Output Voltage out Adj This pin connected to the R linear regulator will attempt to maintain 0.9 V between this pin and ground ...

Page 3

... ORDERING INFORMATION Device NCP565D2T NCP565D2TR4 NCP565D2TR4G NCP565D2T12 NCP565D2T12R4 NCP565D2T12R4G *For other fixed output versions, please contact the factory. †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. NCP565 (V − ...

Page 4

... out 0.2 0 −50 − JUNCTION TEMPERATURE ( C) J Figure 5. Dropout Voltage vs. Temperature 1.28 1.26 1.24 1.22 1.2 1.18 1.16 1.14 1.12 0 300 600 900 I , OUTPUT CURRENT (mA) out Figure 7. Ground Current vs. Output Current NCP565 TYPICAL CHARACTERISTICS 3.90 3.85 3.80 3.75 3.70 3.65 3.60 3.55 3.50 3.45 3.40 3.35 100 125 150 −50 −25 Figure 4. Short Circuit Current Limit 1.16 1.14 1.12 = 1.5 A out 1.10 1.08 1.06 1.04 1.02 1.00 0.98 0.96 100 ...

Page 5

... TIME (nS) Figure 11. Load Transient from 1 100 Start 1.0 kHz FREQUENCY (kHz) Figure 13. Noise Density vs. Frequency NCP565 TYPICAL CHARACTERISTICS 10 0 −10 = 4.59 V − 0.9 V out −30 −40 1.50 1.00 0.50 0 300 350 400 0 0.5 Figure 10. Load Transient from 1.5 A ...

Page 6

... ESR remains between 50 mW and 2.5 W. The NCP565 is optimized for use with a 150 mF OSCON 16SA150M type in parallel with OSCON 10SL10M type from Sanyo. The 10 mF capacitor is used for best AC stability while 150 mF capacitor is used for achieving excellent output transient response ...

Page 7

... The output capacitor network should be as close as possible to the load for the best results. The schematic of NCP565 typical application circuit, which this PCB layout is base on, is shown in Figure 16. The output voltage is set to 3.3 V for this demonstration board according to the feedback resistors in the Table 1 ...

Page 8

... July, 2003 Table 1. Bill of Materials for NCP565 Adj Demonstration Board Item Used # Component 1 4 Radial Lead Aluminum Capacitor 150 mF/ Radial Lead Aluminum Capacitor 10 mF/ SMT Chip Resistor (0805) 15 SMT Chip Resistor (0805) 42 SMT Ceramic Capacitor (0603) 5.6 pF 10% ...

Page 9

... The discharge current depends on the value of the capacitor, the output voltage and the rate at which V NCP565 linear regulator, the discharge path is through a large junction and protection diodes are not usually needed. If the regulator is used with large values of output capacitance and the input voltage is instantaneously shorted to ground, damage can occur ...

Page 10

... N G 0.010 (0.254 10.66 0.42 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. NCP565 PACKAGE DIMENSIONS 2 D PAK−3 D2T SUFFIX CASE 936−03 ISSUE B −T− TERMINAL ...

Page 11

... D 0.010 (0.254 10.66 0.42 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. NCP565 PACKAGE DIMENSIONS 2 D PAK−5 D2T SUFFIX CASE 936A−02 ISSUE B −T− TERMINAL ...

Page 12

... The product described herein (NCP565), may be covered by one or more of the following U.S. patents: 5,920,184; 5,834,926. There may be other patents pending. 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. “ ...

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