ON NCP561SN15T1, NCP561SN18T1, NCP561SN25T1, NCP561SN27T1, NCP561SN28T1 Schematic [ru]
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NCP561
150 mA CMOS Low Iq
Low-Dropout Voltage
Regulator
The NCP561 series of fixed output low dropout linear regulators are
designed for handheld communication equipment and portable battery
powered applications which require low quiescent. The NCP561
series features an ultralow quiescent current of 3.0 A. Each device
contains a voltage reference unit, an error amplifier, a PMOS power
transistor, resistors for setting output voltage, current limit, and
temperature limit protection circuits.
The NCP561 has been designed to be used with low cost ceramic
capacitors and requires a minimum output capacitor of 1.0 F. The
device is housed in the micro-miniature TSOP-5 surface mount
package. Standard voltage versions are 1.5 V, 1.8 V, 2.5 V, 2.7 V,
2.8 V, 3.0 V, 3.3 V and 5.0 V.
Features
•Low Quiescent Current of 3.0 A Typical
•Low Dropout Voltage of 170 mV at 150 mA
•Low Output Voltage Option
•Output Voltage Accuracy of 2.0%
•Industrial Temperature Range of -40°C to 85°C
•Pb-Free Packages are Available
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1
TSOP-5
SN SUFFIX
CASE 483
PIN CONNECTIONS AND
MARKING DIAGRAM
1
V
GND
Enable
IN
2
3
(Top View)
G
5
XXXAYWG
4
V
OUT
N/C
Typical Applications
•Battery Powered Instruments
•Hand-Held Instruments
•Camcorders and Cameras
V
IN
1
Thermal
Shutdown
Enable
3
ON
OFF
This device contains 28 active transistors
Figure 1. Representative Block Diagram
Driver w/
Current
Limit
GND
XXX = Specific Device Code
A = Assembly Location
Y = Year
W = Work Week
G = Pb-Free Package
(Note: Microdot may be in either location)
V
OUT
5
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
2
ORDERING INFORMATION
© Semiconductor Components Industries, LLC, 2007
August, 2007 - Rev. 5
1 Publication Order Number:
NCP561/D
NCP561
PIN FUNCTION DESCRIPTION
Pin No. Pin Name Description
1 V
IN
2 GND Power supply ground.
3 Enable This input is used to place the device into low-power standby. When this input is pulled low, the device is
4 N/C No internal connection.
5 V
OUT
MAXIMUM RATINGS
Input Voltage V
Enable Voltage Enable -0.3 to V
Output Voltage V
Power Dissipation and Thermal Characteristics
Power Dissipation
Thermal Resistance, Junction-to-Ambient
Operating Junction Temperature T
Operating Ambient Temperature T
Storage Temperature 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 2000 V per MIL-STD-883, Method 3015
Machine Model Method 200 V
2. Latchup capability (85°C) "100 mA DC with trigger voltage.
Positive power supply input voltage.
disabled. If this function is not used, Enable should be connected to V
.
IN
Regulated output voltage.
Rating Symbol Value Unit
6.0 V
+0.3 V
IN
-0.3 to V
+0.3 V
IN
Internally Limited
250
+150 °C
-40 to +85 °C
-55 to +150 °C
R
IN
OUT
P
A
stg
D
JA
J
W
°C/W
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NCP561
ELECTRICAL CHARACTERISTICS (V
IN
= V
OUT(nom)
+ 1.0 V, V
= VIN, CIN = 1.0 F, C
enable
= 1.0 F, TJ = 25°C,
OUT
unless otherwise noted.)
Characteristic
Output Voltage (TA = 25°C, I
= 1.0 mA)
OUT
1.5 V
1.8 V
2.5 V
2.7 V
2.8 V
3.0 V
3.3 V
5.0 V
Line Regulation
1.5 V-4.4 V (V
4.5 V-5.0 V (V
Load Regulation (I
Output Current (V
1.5 V to 3.9 V (V
4.0 V to 5.0 V (V
Dropout Voltage (TA = -40°C to 85°C, I
Measured at V
= V
IN
= 5.5 V to 6.0 V)
IN
OUT
OUT
IN
IN
OUT
+ 1.0 V to 6.0 V)
o(nom)
= 10 mA to 150 mA) Reg
= (V
= V
OUT
o(nom)
at I
= 150 mA) -3.0%)
out
+ 2.0 V)
= 6.0 V)
= 150 mA,
OUT
- 3.0%)
1.5 V - 1.7 V
1.8 V - 2.4 V
2.5 V - 2.7 V
2.8 V - 3.2 V
3.3 V - 4.9 V
5.0 V
Quiescent Current
(Enable Input = 0 V)
(Enable Input = VIN, I
= 1.0 mA to I
OUT
o(nom)
)
Output Short Circuit Current
1.5 V to 3.9 V (V
4.0 V to 5.0 V (V
= V
IN
= 6.0 V)
IN
o(nom)
+ 2.0 V)
Output Voltage Noise
(f = 20 Hz to 100 kHz, V
OUT
= 3.0, V I
OUT
= 1.0 V)
Enable Input Threshold Voltage
(Voltage Increasing, Output Turns On, Logic High)
(Voltage Decreasing, Output Turns Off, Logic Low)
Output Voltage Temperature Coefficient T
Symbol Min Typ Max Unit
V
OUT
Reg
load
I
o(nom)
VIN-V
I
Q
I
OUT(max)
V
n
V
th(en)
C
line
OUT
1.455
1.746
2.425
2.646
2.744
2.940
3.234
4.90
-
-
1.5
1.8
2.5
2.7
2.8
3.0
3.3
5.0
10
10
1.545
1.854
2.575
2.754
2.856
3.060
3.366
5.10
20
20
- 30 60 mV
150
150
-
-
-
-
-
-
-
-
160
160
-
-
330
240
150
140
130
120
0.1
4.0
400
400
-
-
500
360
250
230
200
190
1.0
8.0
800
800
- 60 -
1.3
-
-
-
-
0.2
- "100 - ppm/°C
3. Maximum package power dissipation limits must be observed.
T
J(max)*TA
PD +
R
JA
4. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
V
mV
mA
mV
A
mA
Vrms
V
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NCP561
0
k
TYPICAL CHARACTERISTICS
180
V
= 3.0 V
OUT
160
140
120
150 mA Load
100
80
60
, DROPOUT VOLTAGE (mV)
40
OUT
20
- V
IN
V
0
-50 -25 0 25 50 75 100 125
100 mA Load
50 mA Load
TEMPERATURE (C°)
Figure 2. Dropout Voltage vs. Temperature
4.75
I
= 10 mA
OUT
4.50
V
= 4.0 V
IN
4.25
4.00
3.75
3.50
3.015
I
= 10 mA
3.010
3.005
OUT
VIN = 6.0 V
3.000
VIN = 4.0 V
2.995
2.990
, OUTPUT VOLTAGE (V)
2.985
OUT
V
2.980
2.975
-50 0 50 10
TEMPERATURE (C°)
Figure 3. Output Voltages vs. Temperature
4.5
V
= 3.0 V
4.0
3.5
3.0
2.5
OUT
I
OUT
= 25°C
T
A
= 0 mA
, QUIESCENT CURRENT (A)
3.25
q
I
3.00
-50 0 50
100
2.0
, QUIESCENT CURRENT (A)
q
I
1.5
05
1234 6
TEMPERATURE (C°)
Figure 4. Quiescent Current vs. Temperature
5.0
V
= 3.0 V
OUT
4.5
I
= 50 mA
OUT
= 25°C
T
A
Figure 5. Quiescent Current vs. Input Voltage
4.0
3.5
3.0
4.0
2.5
3.5
3.0
2.5
, GROUND PIN CURRENT (A)
2.0
GND
I
1.5
05
1234 6
2.0
1.5
1.0
0.5
OUTPUT NOISE VOLTAGE (V/ǰHz)
0
10 100 1 k 10 k 100 k 1000
VIN, INPUT VOLTAGE (V)
Figure 6. Ground Current vs. Input Voltage
Figure 7. Output Noise Voltage
TEMPERATURE (C°)
1.0 mA
150 mA
NOISE CHARACTERIZATION
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