NCP566 ON Semiconductor, NCP566 Datasheet

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NCP566

Manufacturer Part Number
NCP566
Description
Low Dropout Linear Regulator
Manufacturer
ON Semiconductor
Datasheet

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NCP566
1.5 A Low Dropout
Linear Regulator
fixed output voltage. 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.
Features
Typical Applications
© Semiconductor Components Industries, LLC, 2007
March, 2007 − Rev. 0
The NCP566 low dropout linear regulator will provide 1.5 A at a
Other Fixed Voltages Available on Request
Ultra Fast Transient Response (t1.0 ms)
Low Ground Current (1.5 mA @ Iout = 1.5 A)
Low Dropout Voltage (0.9 V @ Iout = 1.5 A)
Low Noise (37 mVrms)
1.2 V, 1.8 V, 2.5 V Fixed Output Versions.
Current Limit Protection
Thermal Shutdown Protection
These are Pb−Free Devices
Servers
ASIC Power Supplies
Post Regulation for Power Supplies
Constant Current Source
www.DataSheet4U.com
1
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
(Note: Microdot may be in either location)
ORDERING INFORMATION
GND
xx = Voltage Rating
A = Assembly Location
Y = Year
M = Date Code
G = Pb−Free Package
V
V
PIN CONNECTIONS
out
http://onsemi.com
in
CASE 318E
SOT−223
1
2
3
12 = 1.2 V
18 = 1.8 V
25 = 2.5 V
Publication Order Number:
GND
1
DIAGRAMS
MARKING
566xx G
NCP566/D
AYM
G

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NCP566 Summary of contents

Page 1

... NCP566 1.5 A Low Dropout Linear Regulator The NCP566 low dropout linear regulator will provide 1 fixed output voltage. 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 ...

Page 2

... qJA 3. As measured using a copper heat spreading area 150mF NCP566 Symbol Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á V Positive Power Supply Input Voltage in Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á ...

Page 3

... Ripple Rejection (1 kHz 1.5 A) out Thermal Shutdown Ground Current (I = 1.5 A) out Output Noise Voltage (f = 100 Hz to 100 kHz Dropout voltage is a measurement of the minimum input/output differential at full load. NCP566 ( 1.6 V, for typical values T = 25°C, for min/max values out J < 9 − ...

Page 4

... T , JUNCTION TEMPERATURE (°C) J Figure 4. Output Voltage vs. Temperature 1.2 1.0 0.8 0.6 0.4 0.2 0 −50 NCP566 TYPICAL CHARACTERISTICS 1.820 1.815 1.810 1.805 1.800 1.795 1.790 V = 2.5 V out 1.785 out 1.780 100 125 150 −50 −25 Figure 3. Output Voltage vs. Temperature 3 ...

Page 5

... Figure 7. Ground Current vs. Temperature 100 out 100 1000 10000 F, FREQUENCY (Hz) Figure 9. Ripple Rejection vs. Frequency Figure 11. Load Transient from 1.5 A NCP566 TYPICAL CHARACTERISTICS 1.80 1.75 1.70 1.65 1. 1.5 A out 1.55 0 300 100 125 150 Figure 8. Ground Current vs. Output Current 1000 100 10 = 1.5 A ...

Page 6

... Figure 13. Load Transient from 1 140 120 100 FREQUENCY (kHz) Figure 15. Noise Density vs. Frequency NCP566 TYPICAL CHARACTERISTICS V = 1.2 V out Figure 14. Load Transient from 1 140 120 100 1.2 V out out ...

Page 7

... The output capacitor is required for stability. The NCP566 remains stable with ceramic, tantalum, and aluminum− electrolytic capacitors with a minimum value of 1.0 mF with ESR between 50 mW and 2.5 W. The NCP566 is optimized Pulse Figure 17. Schematic for Transient Response Measurement NCP566 for use with a 150 mF OSCON 16SA150M type in parallel with OSCON 10SL10M type from Sanyo ...

Page 8

... The discharge current depends on the value of the capacitor, the output voltage and the rate at which V NCP566 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 9

... NCP566ST18T3G NCP566ST25T3G *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. NCP566 Nominal Output Voltage* Package SOT−223 1.2 V (Pb−Free) SOT− ...

Page 10

... Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. The product described herein (NCP566), 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) ...

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