ON Semiconductor NCP5661, NCV5661 Technical data

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NCP5661, NCV5661

Low Output Voltage,
Ultra−Fast 1.0 A Low Dropout
Linear Regulator with Enable

The NCP5661/NCV5661 is a high performance, low dropout linear
regulator designed for high power applications that require up to 1.0 A
current. It is offered in both fixed and adjustable output versions. With
output voltages as low as 0.9 V and ultra−fast response times for load
transients, the NCP5661/NCV5661 also provides additional features
such as Enable and Error Flag (for the fixed output version),
increasing the utility of these devices. A thermally robust, 5 pin
DPAK, combined with an architecture that offers low ground current
(independent of load), provides for a superior high−current LDO
solution.

Features

• Ultra−Fast Transient Response (Settling Time: 1−3 ms)

• Low Noise Without Bypass Capacitor (26 mV

• Low Ground Current Independent of Load (3.0 mA Maximum)

• Fixed/Adjustable Output Voltage Versions

• Enable Function

• Error Flag (Fixed Output Version)

• Current Limit Protection

• Thermal Protection

• 0.9 V Reference Voltage for Ultra−Low Output Operation

• Power Supply Rejection Ratio > 65 dB

• NCV Prefix for Automotive and Other Applications Requiring Site

and Control Changes

• These are Pb−Free Devices

rms)

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1

5

DPAK−5

CENTER LEAD CROP

CASE 175AA

Tab = Ground
Pin: 1. Enable

2. V

in

3. Ground

4. V

out

5. Adj (Adjustable Output)

5. Error Flag (Fixed Output)

x = A for Adjustable Version

B for Fixed 1.2 V

C for Fixed 3.3 V
A = Assembly Location
L = Wafer Lot
Y = Year
WW = Work Week
G = Pb−Free

MARKING

MARKING
DIAGRAM

DIAGRAM

661xG

ALYWW

Applications

• Servers

• ASIC Power Supplies

• Post Regulation for Power Supplies

• Constant Current Source

• Networking Equipment

• Gaming and STB Modules

© Semiconductor Components Industries, LLC, 2005

August, 2005 − Rev. 4

See detailed ordering and shipping information in the package

ORDERING INFORMATION

dimensions section on page 10 of this data sheet.

1 Publication Order Number:

NCP5661/D

NCP5661, NCV5661

PIN FUNCTION DESCRIPTION

Pin

Adj/Fixed

1 Enable This pin allows for on/off control of the regulator. To disable the device, connect to Ground. If this

2 V
3 Ground Power Supply Ground
4 V
5 Adj

5 Error Flag

MAXIMUM RATINGS

Input Voltage V
Output Pin Voltage V
Adjust Pin Voltage V
Enable Pin Voltage V
Error Flag Voltage V
Error Flag Current I
Thermal Characteristics

Thermal Resistance, Junction−to−Air
Thermal Resistance, Junction−to−Case

Operating Junction Temperature Range T
Storage Temperature Range T

Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
NOTE: This device series contains ESD protection and exceeds the following tests:

The maximum package power dissipation is:

The bipolar process employed for this IC is fully characterized and rated for reliable 18 V V

For open−circuit to short−circuit transient,
P

DTransient

Pin Name Description

function is not in use, connect to Vin.

in

out

Positive Power Supply Input Voltage

Regulated Output Voltage
This pin is connected to the resistor divider network and programs the output voltage.

(Adjustable Version)

An Error Flag is triggered when the output voltage is out of regulation excluding transient signals

(Fixed Version)

that may occur. Requires a pullup resistor f 100 kW.

Rating Symbol Value Unit

in
out
adj

en

ef
ef

R

θ

JA

R

θ

JC

J

stg

18 V

−0.3 to Vin +0.3 V

−0.3 to Vin +0.3 V

−0.3 to Vin +0.3 V

−0.3 to Vin +0.3 V

3.0 mA

100

8.0

−40 to +150 °C

−55 to +150 °C

Human Body Model (HBM) JESD 22−A114−B
Machine Model (MM) JESD 22−A115−A.

T

P

+

D

J(max)

R

qJA

* T

A

operation. To avoid damaging

CCmax

the part or degrading it’s reliability, power dissipation transients should be limited to under 20 W for DPAK.

= V

CCmax

* ISC.

°C/W

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NCP5661, NCV5661

ELECTRICAL CHARACTERISTICS

(V

− V

= 1.5 V, for typical values TJ = 25°C, for min/max values TJ = −40°C to 125°C, Cin = C

in

out

Characteristic

ADJUSTABLE OUTPUT VERSION

Input Voltage V
Output Noise Voltage V
Output Voltage Accuracy

T

= 25°C (I

J

TJ = −20 to +125°C (I

TJ = −40 to +150°C (I

= 10 mA to 1.0 A)

out

= 10 mA to 1.0 A)

out

= 10 mA to 1.0 A)

out

Adjustable Pin Input Current I
Line Regulation (I
Load Regulation (10 mA < I
Dropout Voltage (I

= 10 mA, V

out

= 1.0 A) V

out

+1.5 V < Vin < 7.0 V) REG

out

< 1.0 A) REG

out

Peak Output Current Limit I
Internal Current Limitation I
Ripple Rejection (120 Hz)

Ripple Rejection (1.0 kHz)
Thermal Shutdown (Guaranteed by Design) T
Ground Current

I

= 1.0 A

out

Disabled State

Enable Input Threshold Voltage

Voltage Increasing, On State, Logic High

Voltage Decreasing, Off State, Logic Low

Enable Input Current

Enable Pin Voltage = 0.3 V

Enable Pin Voltage = 1.3 V

Symbol Min Typ Max Unit

max

min

in

n

V

out

−1.5%

adj

line

load

DO
out
lim

RR −

SHD

I

q

I

qds

V

en

I

en

= 150 mF unless otherwise noted.)

out

2.0 − 9.0 V

− 26 −

−1%

−

0.9

−2%

−

+1%

+1.5%

+2%

mV

− 40 − nA

− 0.03 − %

− 0.03 − %

− 1.0 1.3 V

1.0 − − A

− 1.5 − A
70

−

65

−

−

− 160 − °C

−

−

1.3

−

−

−

1.3
10

−

−

0.5

0.5

3.0

300

−

0.3

−

−

rms

V

dB

mA

mA

V

mA

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NCP5661, NCV5661

ELECTRICAL CHARACTERISTICS

(V

− V

= 1.5 V, for typical values TJ = 25°C, for min/max values TJ = −40°C to 125°C, Cin = C

in

out

Characteristic

FIXED OUTPUT VOLTAGE

Input Voltage V
Output Noise Voltage (V

= 0.9 V) V

out

Output Voltage Accuracy (Note 1)

T

= 25°C (I

J

TJ = −20 to +125°C (I

TJ = −40 to +150°C (I
Line Regulation (I
Load Regulation (10 mA < I
Dropout Voltage (I

= 10 mA to 1.0 A)

out

out

out

= 10 mA to 1.0 A)

out

= 10 mA to 1.0 A)

out

= 10 mA, V

+1.5 V < Vin < 7.0 V) REG

out

< 1.0 A) REG

out

= 1.0 A) V
Peak Output Current Limit I
Internal Current Limitation I
Ripple Rejection (120 Hz)

Ripple Rejection (1.0 kHz)
Thermal Shutdown (Guaranteed by Design) T
Ground Current

I

= 1.0 A

out

Disabled State

Enable Input Threshold Voltage

Voltage Increasing, On State, Logic High

Voltage Decreasing, Off State, Logic Low

Enable Input Current

Enable Pin Voltage = 0.3 V

Enable Pin Voltage = 1.3 V

Error Flag (Fixed Output)

1.2 V Output

3.3 V Output
Error Flag Output Low Voltage Saturation (Ief = 1.0 mA) V
Error Flag Leakage I
Error Flag Blanking Time (Note 2) T

1. Fixed output voltages available at 0.9 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V per request.

2. Can be disabled per customer request.

Symbol Min Typ Max Unit

in

n

V

out

−1.5%

line

load

DO
out
lim

RR −

SHD

I

q

I

qds

V

en

I

en

max

min

V

eflt

efdo

efleak

ef

= 150 mF unless otherwise noted.)

out

2.0 − 9.0 V

− 26 −

−1%

−2%

−

V

out

−

+1%

+1.5%

+2%

mV

− 0.03 − %

− 0.2 − %

− 1.0 1.3 V

1.0 − − A

− 1.5 − A
70

−

65

−

−

− 160 − °C

−

−

1.3

−

−

−

1.3
30

−

−

0.5

0.5

3.0

300

−

0.3

−

−
% of V

88
90

92
94

97
97

− 200 − mV

− 1.0 −

− 50 −

rms

V

dB

mA

mA

V

mA

out

mA

ms

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