ON Semiconductor NCP580 Technical data
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NCP580
Ultra−Fast, Low Noise
120 mA CMOS LDO
Regulator with Enable
The NCP580 series of low dropout regulators are designed for
portable battery powered applications which require precise output
voltage accuracy, low quiescent current, and high ripple rejection.
These devices feature an enable function which lowers current
consumption significantly and are offered in the small SC−82AB
package.
A 2.2 mF ceramic capacitor or higher is the recommended value to
be used with these devices on the output pin.
Features
• Ultra−Low Dropout Voltage of 150 mV at 100 mA
• Low Output Noise of 30 mVrms without Noise Reduction Cap
• Excellent Line Regulation of 0.02%/V
• Excellent Load Regulation of 12 mV
• High Output Voltage Accuracy of "1.5%
• Low Iq Current of 90 mA
• Very Low Shutdown Current of 0.1 mA
• Excellent Power Supply Rejection Ratio of 70 dB at f = 1.0 kHz
• Wide Output Voltage Range of 1.5 V to 3.3 V
• Fold Back Protection Circuit
• Fast Dynamic Performance
• Low Temperature Drift Coefficient on the Output Voltage of
"100 ppm/°C
• Input Voltage up to 6.5 V
• These are Pb−Free Devices
T ypical Applications
• Portable Equipment
• Hand−Held Instrumentation
• Camcorders and Cameras
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MARKING
DIAGRAM
SC−82AB
SQ SUFFIX
4
xxx = Device Code
M = Date Code*
G = Pb−Free Package
(Note: Microdot may be in either location)
*Date Code orientation and/or position may
vary depending upon manufacturing location.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
CASE 419C
1
M
xxx M G
G
1
V
in
−
+
V
ref
Current Limit
CE
Figure 1. Simplified Block Diagram
© Semiconductor Components Industries, LLC, 2005
August, 2005 − Rev. 2
V
out
GND
1 Publication Order Number:
NCP580/D
NCP580
PIN FUNCTION DESCRIPTION
Pin Symbol Description
1
V
out
2 GND Power supply ground.
3 CE Chip enable pin.
4 V
in
MAXIMUM RATINGS
Input Voltage V
Input Voltage (CE or CE Pin) V
Output Voltage V
Output Current I
Power Dissipation P
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.
Regulated output voltage.
Power supply input voltage.
Rating Symbol Value Unit
in
CE
out
out
D
J
stg
6.5 V
−0.3 to Vin +0.3 V
−0.3 to Vin +0.3 V
140 mA
150 mW
−40 to +85 °C
−55 to +150 °C
ELECTRICAL CHARACTERISTICS (V
= V
+ 1.0 V , T
in
out
= 25°C, unless otherwise noted.)
A
Characteristic Symbol Min Typ Max Unit
Input Voltage V
Output Voltage (I
Line Regulation (I
(V
+ 0.5 V v Vin v 6.0 V)
out
(V
= 1.5 V , 2.2 V v Vin v 6.0 V)
out
Load Regulation (I
Dropout Voltage (I
V
= 1.5 V
out
V
= 1.8 V
out
V
= 2.5 V
out
2.8 V v V
Quiescent Current (I
= 1.0 mA to 30 mA)
out
= 30 mA)
out
= 1.0 mA to 120 mA)
out
= 120 mA)
out
v 3.3 V
out
= 0 mA)
out
Output Current I
Shutdown Current (Vin = VCE)
Output Short Circuit Current (V
Ripple Rejection (I
= 30 mA)
out
out
= 0)
f = 1.0 kHz
(V
= 1.5 V , Vin – V
out
(V
w 2.5 V , Vin – V
out
= 1.2 V)
out
= 1.0 V)
out
Enable Input Threshold Voltage
High
Low
Output Noise Voltage (Bandwidth = 10 Hz to 100 kHz) V
Output Voltage Temperature Coefficient
(I
= 30 mA, −40°C v TA v 85°C)
out
DV
2.2 − 6.0 V
V
out
0.985
X
− V
out
1.015
X
− 0.02 0.10 %/V
− 12 40 mV
−
−
−
−
0.36
0.28
0.24
0.18
0.70
0.40
0.35
0.28
V
Reg
Reg
V
in
out
line
load
DO
Iq − 90 160 mA
out
I
SD
I
lim
120 − − mA
0.1 1.0 mA
− 40 − mA
RR
−
−
Vth
enh
Vth
enl
n
/DT − "100 − ppm/°C
out
1.5
0
− 30 − mVrms
75
70
−
−
−
−
V
0.3
in
V
V
dB
V
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2
NCP580
.0
3.0
0
1.6
OUTPUT VOLTAGE V
(V)
TYPICAL CHARACTERISTICS
1.4
1.2
out
Vin = 3.5 V
1.0
0.8
0.6
1.8 V
2.5 V
2.0 V
(V)
out
2.5
Vin = 4.8 V
2.0
1.5
1.0
0.4
OUTPUT VOLTAGE V
0.2
0
0 100 150 250
OUTPUT CURRENT I
20050 50 150
(mA)
out
V
= 1.5 V
out
300
0.5
0
0 100 200 250
OUTPUT CURRENT I
Figure 2. Output Voltage vs. Output Current Figure 3. Output Voltage vs. Output Current
1.6
1.5
(V)
out
1.4
1.3
1.2
OUTPUT VOLTAGE V
1.1
I
= 1.0 mA
out
I
= 30 mA
out
I
= 50 mA
out
1.0
1.0 2.0 3.0 4.0
INPUT VOLTAGE Vin (V)
Figure 4. Output Voltage vs. Input Voltage
V
out
5.0
= 1.5 V
6.0
2.9
2.8
(V)
2.7
out
2.6
I
= 1.0 mA
2.5
2.4
2.3
2.2
OUTPUT VOLTAGE V
out
I
= 30 mA
out
I
= 50 mA
out
2.1
2.0
1.0 3.0 4.0 5.0
2.0
INPUT VOLTAGE Vin (V)
Figure 5. Output Voltage vs. Input Voltage
3.8 V
out
(mA)
V
V
3.1 V
out
= 2.8 V
out
3.3 V
= 2.8 V
30
6
100
90
(mA)
80
q
70
60
50
40
30
20
QUIESCENT CURRENT, I
10
0
0
1.0 2.0 3.0 4.0
INPUT VOL TAGE Vin (V)
Figure 6. Quiescent Current vs. Input Voltage
V
= 1.5 V
out
5.0 6.0
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100
90
80
(mA)
q
70
60
50
40
30
20
QUIESCENT CURRENT, I
10
0
0
1.0 2.0 3.0 4.0
V
= 2.8 V
out
5.0 6.0
INPUT VOL TAGE Vin (V)
Figure 7. Quiescent Current vs. Input Voltage
3
OUTPUT VOLTAGE, V
(V)
0
2.86
0
QUIESCENT CURRENT, I
(
A)
t
0
out
1.54
1.53
1.52
1.51
NCP580
TYPICAL CHARACTERISTICS
Vin = 2.5 V
I
= 30 mA
out
(V)
out
2.84
2.82
Vin = 3.8 V
I
= 30 mA
out
m
q
1.50
1.49
1.48
1.47
1.46
120
110
100
90
80
70
60
−50
−50
V
= 1.5 V
out
−25 0 25 50
75
TEMPERATURE (°C)
Figure 8. Output Voltage vs. Temperature
V
= 1.5 V
out
Vin = 2.5 V
0 50 100
100
2.80
2.78
OUTPUT VOLTAGE, V
2.76
2.74
−50
120
110
(mA)
q
100
90
80
70
QUIESCENT CURRENT, I
60
−50
V
= 2.8 V
out
−25 0 25 50
75
TEMPERATURE (°C)
Figure 9. Output Voltage vs. Temperature
V
= 2.8 V
out
Vin = 3.8 V
05010
10
TEMPERATURE (°C)
Figure 10. Quiescent Current vs. Temperature
1.2
V
= 1.5 V
out
(V)
1.0
DO
Figure 11. Quiescent Current vs. Temperature
0.25
(V)
0.20
DO
0.8
0.15
TEMPERATURE (°C)
85°C
25°C
0.6
0.4
0.2
DROPOUT VOLTAGE, V
25°C
0.0
0
20 40 60 80
OUTPUT CURRENT I
out
(mA)
Figure 12. Dropout Voltage vs. Output Current
85°C
−40°C
100
120
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0.10
0.05
DROPOUT VOLTAGE, V
0.00
−40°C
V
out
0
20 40 60 80
OUTPUT CURRENT I
out
(mA)
Figure 13. Dropout Voltage vs. Output Curren
= 2.8 V
100
12
4
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