MOTOROLA NCP566ST25T3G, NCP566 Datasheet

NCP566

1.5 A Low Dropout
Linear Regulator

The NCP566 low dropout linear regulator will provide 1.5 A at a
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

• 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.

Other Fixed Voltages Available on Request

• Current Limit Protection

• Thermal Shutdown Protection

• These are Pb−Free Devices

Typical Applications

• Servers

• ASIC Power Supplies

• Post Regulation for Power Supplies

• Constant Current Source

• DTV

• LCD Monitors

• Networking Equipment

• Battery Powered Systems

• Motherboards

• Peripheral Cards

• Set Top Boxes

• Medical Equipment

• Notebook Computers

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MARKING

DIAGRAMS

SOT−223

CASE 318E

xx = Voltage Rating

12 = 1.2 V
18 = 1.8 V

25 = 2.5 V
A = Assembly Location
Y = Year
M = Date Code
G = Pb−Free Package

(Note: Microdot may be in either location)

PIN CONNECTIONS

V

1

in

2

GND

V

3

out

See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.

ORDERING INFORMATION

AYM

566xx G

G

1

GND

© Semiconductor Components Industries, LLC, 2007

March, 2007 − Rev. 1

1 Publication Order Number:

NCP566/D

NCP566

PIN DESCRIPTION

Pin No. Symbol Description

1

2, Tab

3

MAXIMUM RATINGS

Input Voltage (Note 1) V
Output Pin Voltage V
Thermal Characteristics (Notes 2, 3)

Thermal Resistance, Junction−to−Ambient

Thermal Resistance, Junction−to−Pin
Operating Junction Temperature Range T
Operating Ambient Temperature Range T
Storage Temperature Range T

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.

1. This device series contains ESD protection and exceeds the following tests:
Human Body Model JESD 22−A114−B
Machine Model JESD 22−A115−A

2. The maximum package power dissipation is:

3. As measured using a copper heat spreading area of 50 mm2, 1 oz copper thickness.

T

P

+

D

J(max)

R

qJA

* T

A

V

in

Ground

V

out

Positive Power Supply Input Voltage
Power Supply Ground
Regulated Output Voltage

Rating Symbol Value Unit

in

out

9.0 V

−0.3 to Vin + 0.3 V
°C/W

R

q

JA

R

q

JP

J

A

stg

107

12

−40 to 150 °C

−40 to 125 °C

−55 to 150 °C

C

in

Voltage

Reference

V

Block

Cin − 4.7 mF to 150 mF recommended
C

− 2.2 mF to 150 mF recommended

out

See more details in Applications Information section

Figure 1. Typical Schematic

= 0.9 V

ref

V

in

GND

Output

Stage

GND

R1

R2

V

out

C

out

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2

NCP566

ELECTRICAL CHARACTERISTICS (V

+ 1.6 V, for typical values TJ = 25°C, for min/max values TJ = −40°C to +125°C,

in = Vout

(Note 4) unless otherwise noted.)

Characteristic

Output Voltage (10 mA < I

1.2 V version

Output Voltage (10 mA < I

1.2 V version

Output Voltage (10 mA < I

1.8 V version

Output Voltage (10 mA < I

1.8 V version

Output Voltage (10 mA < I

2.5 V version

Output Voltage (10 mA < I

2.5 V version

Line Regulation (I

out

Load Regulation (10 mA < I
Dropout Voltage (I

out

< 1.5 A; 2.8 V < Vin < 9.0 V; TJ = −10 to 105°C)

out

< 1.5 A; 2.8 V < Vin < 9.0 V; TJ = −40 to 125°C)

out

< 1.5 A; 3.4 V < Vin < 9.0 V; TJ = −10 to 105°C)

out

< 1.5 A; 3.4 V < Vin < 9.0 V; TJ = −40 to 125°C)

out

< 1.5 A; 4.1 V < Vin < 9.0 V; TJ = −10 to 105°C)

out

< 1.5 A; 4.1 V < Vin < 9.0 V; TJ = −40 to 125°C)

out

= 10 mA) Reg

< 1.5 A) Reg

out

= 1.5 A) (Note 5) Vdo − 0.9 1.3 V
Current Limit I
Ripple Rejection (120 Hz; I
Ripple Rejection (1 kHz; I

= 1.5 A) RR − 85 − dB

out

= 1.5 A) RR − 75 − dB

out

Symbol Min Typ Max Unit

V

out

V

out

V

out

V

out

V

out

V

out

load

lim

line

1.176

(−2%)

1.164

(−3%)

1.764

(−2%)

1.746

(−3%)

2.450

(−2%)

2.425

(−3%)

1.2 1.224
(+2%)

1.2 1.236
(+3%)

1.8 1.836
(+2%)

1.8 1.854
(+3%)

2.5 2.550
(+2%)

2.5 2.575
(+3%)

− 0.02 − %

− 0.04 − %

1.6 3.5 − A

Thermal Shutdown − 160 − °C
Ground Current (I
Output Noise Voltage (f = 100 Hz to 100 kHz, I

= 1.5 A) Iq − 1.5 3.0 mA

out

= 1.5 A) V

out

n

− 37 −

4. Refer to Application Information section for capacitor details.

5. Dropout voltage is a measurement of the minimum input/output differential at full load.

V

V

V

V

V

V

mVrms

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