NCP151
LDO Regulator
- Dual,
High PSRR
300 mA
The NCP151 is a dual linear regulator capable of supplying 300 mA
output current from 1.7 V input voltage. The device provides wide
output voltage range from 0.8 V up to 3.6 V. In order to optimize
performance for battery operated portable applications, the NCP151
employs the dynamic quiescent current adjustment for very low I
Q
consumption at no−load.
Features
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1
XDFN4
CASE 711AJ
•
•
•
•
•
•
•
•
•
•
Operating Input Voltage Range 1.7 V to 5.5 V
Available in Fixed Voltage Option: 0.8 V to 3.6 V
±2%
Accuracy Over Load/Temperature
Low Quiescent Current Typ. 100
mA
Low Dropout: 210 mV for 300 mA @ 2.8 V
Low Dropout: 370 mV for 300 mA @ 1.8 V
High PSRR: Typ. 70 dB at 1 kHz @ OUT1, OUT2
Stable with a 1
mF
Small Case Size Ceramic Capacitors
Available in XDFN4, 1 mm
×
1 mm
×
0.4 mm
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
PDAs, Mobile Phones, GPS, Smartphones
Wireless Handsets, Wireless LAN Devices, Bluetooth
®
, Zigbee
®
Bitcoin Miners
Portable Medical Equipment
Other Battery Powered Equipment
V
IN1
NCP151
IN
GND
C
IN1
1
mF
OUT2
OUT1
V
OUT2
V
OUT1
MARKING DIAGRAM
XX M
1
XX
M
= Specific Device Code
= Date Code
PIN CONNECTIONS
IN
4
OUT2
3
Typical Applications
•
•
•
•
•
EPAD
1
OUT1
2
GND
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information on page 2 of
this data sheet.
C
OUT1
1
mF
C
OUT2
1
mF
Figure 1. Typical Application Schematic
©
Semiconductor Components Industries, LLC, 2017
September, 2019
−
Rev. 4
1
Publication Order Number:
NCP151/D
NCP151
IN
Thermal
shutdown
Bandgap
reference
−
+
Integrated
soft−start
MOSFET driver
with current limit
OUT1
GND
OUT2
−
Bandgap
reference
MOSFET driver
with current limit
+
Integrated
soft−start
Thermal
shutdown
Figure 2. Simplified Schematic Block Diagram
PIN FUNCTION DESCRIPTION
Pin No.
XDFN4
4
1
3
2
EPAD
Pin Name
IN
OUT1
OUT2
GND
EPAD
Input voltage supply pin.
Regulated output voltage. The output should be bypassed with small 1
mF
ceramic capacitor.
Regulated output voltage. The output should be bypassed with small 1
mF
ceramic capacitor.
Common ground connection.
Expose pad can be tied to ground plane for better power dissipation.
Description
ABSOLUTE MAXIMUM RATINGS
Rating
Input Voltage (Note 1)
Output Voltage
Output Short Circuit Duration
Maximum Junction Temperature
Storage Temperature
ESD Capability, Human Body Model (Note 2)
ESD Capability, Machine Model (Note 2)
Symbol
V
IN
V
OUT1
, V
OUT2
t
SC
T
J
T
STG
ESD
HBM
ESD
MM
Value
−0.3
V to 6 V
−0.3
to V
IN
+ 0.3,
max 6 V
unlimited
150
−55
to 150
2000
200
Unit
V
V
s
°C
°C
V
V
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
2. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per EIA/JESD22−A114.
ESD Machine Model tested per EIA/JESD22−A115.
Latchup Current Maximum Rating tested per JEDEC standard: JESD78.
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NCP151
THERMAL CHARACTERISTICS
Rating
Thermal Characteristics, XDFN4 (Note 3), Thermal Resistance,
Junction−to−Air
Symbol
R
qJA
Value
170
Unit
°C/W
3. Measured according to JEDEC board specification. Detailed description of the board can be found in JESD51−7.
ELECTRICAL CHARACTERISTICS
−40°C ≤
T
J
≤
85°C; V
IN
= V
OUT(NOM)
+ 1 V for V
OUT
options greater than 1.5 V. Otherwise V
IN
= 2.5 V , whichever is greater,
I
OUT
= 1 mA; C
IN
= C
OUT
= 1
mF,
unless otherwise noted. Typical values are at T
J
= +25°C.
Parameter
Operating Input Voltage
Output Voltage Accuracy
Symbol
V
IN
V
OUT
LineReg
LoadReg
V
DO1
V
DO2
Current Limit
Short Circuit Current
Quiescent Current
V
OUT
Slew Rate (Note 6)
I
CL
I
SC
I
Q
V
OUT_SR
OUT1
OUT2
V
OUT(NOM)
≤
2 V
V
OUT(NOM) >
2 V
Line Regulation
Load Regulation
Dropout Voltage (Note 5)
V
OUT(NOM)
+ 0.5 V
≤
V
IN
≤
5.5 V,
(V
IN
≥
1.7 V)
I
OUT
= 1 mA to 300 mA
V
OUT(NOM)
= 2.8 V
V
OUT(NOM)
= 1.8 V
I
OUT
= 300 mA
I
OUT
= 300 mA
325
Test Conditions
Min
1.7
−40
−2
0.01
12
210
370
600
600
100
100
30
70
70
160
140
dB
mV
RMS
°C
°C
200
mA
mV/ms
Typ
Max
5.5
+40
+2
0.1
30
370
560
mA
Unit
V
mV
%
%/V
mV
mV
OUT1, OUT2, V
OUT
= 90% V
OUT(NOM)
OUT1, OUT2, V
OUT
= 0 V
I
OUT1
= 0 mA, I
OUT2
= 0 mA
V
OUT
= 1.8 V
,
I
OUT
= 10 mA
Normal
(Version A)
Slow
(Version C)
Power Supply Rejection Ratio
Output Voltage Noise
Thermal Shutdown Threshold
PSSR
V
N
T
SDH
T
SDL
V
IN
= 3.8 V
,
V
OUT1
= 2.8 V,
I
OUT
= 10 mA
f = 1 kHz
f = 10 Hz to 100 kHz, I
OUT1
= 10 mA
Temperature rising
Temperature failing
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
4. Performance guaranteed over the indicated operating temperature range by design and/or characterization. Production tested at T
A
= 25°C.
Low duty cycle pulse techniques are used during the testing to maintain the junction temperature as close to ambient as possible.
5. Dropout voltage is characterized when V
OUT
falls 100 mV below V
OUT(NOM)
.
6. Please refer OPN to determine slew rate. NCP151A
−
normal speed. NCP151C
−
slower speed.
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NCP151
TYPICAL CHARACTERISTICS
1.800
V
OUT
, OUTPUT VOLTAGE (V)
V
OUT
, OUTPUT VOLTAGE (V)
1.798
1.796
1 mA
2.802
2.800
2.798
2.796
2.794
2.792
2.790
2.788
2.786
2.784
−40
−20
0
20
40
60
80
100
300 mA
1 mA
1.794
1.792
1.790
1.788
1.786
1.784
−20
0
20
40
60
80
100
1.782
−40
300 mA
T
J
, JUNCTION TEMPERATURE (°C)
T
J
, JUNCTION TEMPERATURE (°C)
Figure 3. Output Voltage vs. Temperature
14
12
10
8
6
4
2
0
−40
−20
0
20
V
IN
= V
OUT,NOM
+ 1 V
I
OUT
= 1 mA to 300 mA
40
60
80
100
1.0
0.8
0.6
0.4
0.2
0
−40
Figure 4. Output Voltage vs. Temperature
LOAD
REG
, LOAD REGULATION (mV)
LINE
REG
, LINE REGULATION (mV/V)
−20
0
20
40
60
80
100
T
J
, JUNCTION TEMPERATURE (°C)
T
J
, JUNCTION TEMPERATURE (°C)
Figure 5. Load Regulation vs. Temperature
600
I
GND
, GROUND CURRENT (mA)
I
GND
, GROUND CURRENT (mA)
500
400
300
200
100
0
T
J
=
−40°C
T
J
= 85°C
1u
10u
100u
1m
10m
100m
1
1.2
1.0
0.8
0.6
0.4
0.2
0
Figure 6. Line Regulation vs. Temperature
T
J
= 25°C
I
OUT1
= I
OUT2
I
OUT1−LOAD
, I
OUT2
= 0 A
1u
10u
100u
1m
10m
100m
1
I
OUT
, OUTPUT CURRENT (A)
I
OUT
, OUTPUT CURRENT (A)
Figure 7. Ground Current vs. Output Current
V
OUT,NOM
= 1.8 V
−
One Output Load
Figure 8. Ground Current vs. Output Current
−
Different Load Combinations
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NCP151
TYPICAL CHARACTERISTICS
450
V
DO
, DROPOUT VOLTAGE (mV)
V
DO
, DROPOUT VOLTAGE (mV)
400
350
300
250
200
150
100
50
0
0
30
60
90
120 150 180 210 240 270 300
T
J
=
−40°C
T
J
= 25°C
T
J
= 85°C
450
400
350
300
250
200
150
100
50
0
−40
−20
0
20
I
OUT
= 20 mA
40
60
80
100
I
OUT
= 100 mA
I
OUT
= 300 mA
I
OUT
, OUTPUT CURRENT (mA)
T
J
, JUNCTION TEMPERATURE (°C)
Figure 9. Dropout Voltage vs. Output Current
−
V
OUT,NOM
= 1.8 V
250
V
DO
, DROPOUT VOLTAGE (mV)
200
150
T
J
=
−40°C
100
50
0
T
J
= 25°C
T
J
= 85°C
250
V
DO
, DROPOUT VOLTAGE (mV)
200
150
100
50
Figure 10. Dropout Voltage vs. Temperature
−
V
OUT,NOM
= 1.8 V
I
OUT
= 300 mA
I
OUT
= 100 mA
I
OUT
= 20 mA
0
−40
−20
0
20
40
60
80
100
0
30
60
90
120 150 180 210 240 270 300
I
OUT
, OUTPUT CURRENT (mA)
T
J
, JUNCTION TEMPERATURE (°C)
Figure 11. Dropout Voltage vs. Output Current
−
V
OUT,NOM
= 2.8 V
I
CL
, CURRENT LIMIT,
I
SC
, SHORT−CIRCUIT CURRENT
750
I
SC
I
CL
V
IN
= 2.8 V
V
OUT
= 1.8 V
C
IN
= C
OUT
= 1
mF
I
CL
: V
OUT
= 90% V
OUT,NOM
I
SC
: V
OUT
= 0 V
−20
0
20
40
60
80
100
T
J
, JUNCTION TEMPERATURE (°C)
EQUIVALENT SERIES RESISTANCE (W)
800
700
650
600
550
500
450
400
100
Figure 12. Dropout Voltage vs. Temperature
−
V
OUT,NOM
= 2.8 V
Stable Region
10
1
Unstable Region
0.1
V
OUT
= 1.8 V
C
IN
= C
OUT
= 1
mF
0
50
100
150
200
250
300
350
300
−40
0.01
I
OUT
, OUTPUT CURRENT (mA)
Figure 13. Short−circuit Current, Current Limit
vs. Temperature
Figure 14. Maximum C
OUT
ESR Value vs.
Output Current
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