NCP177
Linear Voltage Regulator
Fast Transient Response
500 mA with Enable
The NCP177 is CMOS LDO regulator featuring 500 mA output
current. The input voltage is as low as 1.6 V and the output voltage can
be set from 0.7 V.
Features
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•
•
•
•
•
•
•
•
•
Operating Input Voltage Range: 1.6 V to 5.5 V
Output Voltage Range: 0.7 V to 3.6 V
Quiescent Current typ. 60
mA
Low Dropout: 200 mV Typ. at 500 mA, V
OUT−NOM
= 1.8 V
High Output Voltage Accuracy
±0.8%
Stable with Small 1
mF
Ceramic Capacitors
Over−current Protection
Thermal Shutdown Protection: 175°C
With (NCP177A) and Without (NCP177B) Output Discharge
Function
•
Available in XDFN4 1 mm x 1 mm x 0.4 mm Package
•
This is a Pb−Free Device
Typical Applications
1
XDFN4
CASE 711AJ
MARKING DIAGRAM
XX M
1
XX = Specific Device Code
M = Date Code
PINOUT DIAGRAM
•
Battery Powered Equipment
•
Portable Communication Equipment
•
Cameras, Image Sensors and Camcorders
V
IN
IN
C
IN
1
μF
ON
IN
4
EPAD
EN
3
V
OUT
OUT
NCP177
EN
GND
C
OUT
1
μF
1
OUT
(Top View)
2
GND
OFF
Figure 1. Typical Application
Schematic
ORDERING INFORMATION
See detailed ordering, marking and shipping information on
page 10 of this data sheet.
©
Semiconductor Components Industries, LLC, 2017
1
May, 2018 − Rev. 2
Publication Order Number:
NCP177/D
NCP177
IN
VOLTAGE REFERENCE
AND
SOFT−START
OUT
IN
VOLTAGE REFERENCE
AND
SOFT−START
OUT
EN
0.7 V
THERMAL
SHUTDOWN
EN
0.7 V
GND
THERMAL
SHUTDOWN
GND
NCP177A (with active discharge)
NCP177B (without active discharge)
Figure 2. Internal Block Diagram
PIN FUNCTION DESCRIPTION
Pin No.
1
2
3
4
−
Pin Name
OUT
GND
EN
IN
EPAD
Regulated output voltage pin
Power supply ground pin
Enable pin (active “H”)
Power supply input voltage pin
Exposed pad should be tied to ground plane for better power dissipation
Description
ABSOLUTE MAXIMUM RATINGS
Rating
Input Voltage (Note 1)
Output Voltage
Chip Enable Input
Output Current
Maximum Junction Temperature
Storage Temperature
ESD Capability, Human Body Model (Note 2)
ESD Capability, Machine Model (Note 2)
Symbol
IN
OUT
EN
I
OUT
T
J(MAX)
T
STG
ESD
HBM
ESD
MM
Value
−0.3 to 6.0
−0.3 to V
IN
+ 0.3
−0.3 to 6.0
Internally Limited
150
−55 to 150
2000
200
Unit
V
V
V
mA
°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 JESD22−A114
ESD Machine Model tested per JESD22−A115
Latchup Current Maximum Rating tested per JEDEC standard: JESD78
THERMAL CHARACTERISTICS
Rating
Thermal Characteristics, XDFN4 (Note 3)
Thermal Resistance, Junction−to−Air
Symbol
R
qJA
Value
223
Unit
°C/W
3. Measured according to JEDEC board specification. Detailed description of the board can be found in JESD51−7
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2
NCP177
ELECTRICAL CHARACTERISTICS
V
IN
= V
OUT−NOM
+ 0.5 V or V
IN
= 1.6 V (whichever is higher), V
EN
= 1.2 V, I
OUT
= 1 mA, C
IN
= C
OUT
= 1.0
mF,
T
J
= 25°C
The specifications in bold are guaranteed at −40°C
≤
T
J
≤
85°C.
Parameter
Input Voltage
Output Voltage
V
OUT_NOM
≥
1.8 V
T
J
= +25°C
−40°C
≤
T
J
≤
85°C
V
OUT_NOM
< 1.8 V
T
J
= +25°C
−40°C
≤
T
J
≤
85°C
Line Regulation
Load Regulation
Dropout Voltage (Note 4)
V
IN
= V
OUT−NOM
+ 0.5 V to 5.25 V
V
IN
≥
1.6 V
1 mA
≤
I
OUT
≤
500 mA
I
OUT
= 500 mA
1.4 V
≤
V
OUT
< 1.8 V
1.8 V
≤
V
OUT
< 2.1 V
2.1 V
≤
V
OUT
< 2.5 V
2.5 V
≤
V
OUT
< 3.0 V
3.0 V
≤
V
OUT
< 3.6 V
Quiescent Current
Standby Current
Output Current Limit
Short Circuit Current
EN Pin Threshold Voltage
I
OUT
= 0 mA
V
EN
= 0 V
V
OUT
= V
OUT−NOM
− 100 mV
V
OUT
= 0 V
EN Input Voltage “H”
EN Input Voltage “L”
Enable Input Current
Power Supply Rejection Ratio
V
EN
= V
IN
= 5.5 V
f = 1 kHz, Ripple 0.2 Vp−p,
V
IN
= V
OUT−NOM
+ 1.0 V, I
OUT
= 30 mA
(V
OUT
≤
2.0 V, V
IN
= 3.0 V)
f = 10 Hz to 100 kHz
V
IN
= 4.0 V, V
EN
= 0 V, V
OUT
= V
OUT−NOM
Temperature rising from 25°C
Temperature falling from T
SD_TEMP
R
ACTDIS
T
SD_TEMP
T
SD_HYST
I
Q
I
STBY
I
OUT
I
SC
V
ENH
V
ENL
I
EN
PSRR
0.15
75
510
510
1.0
0.4
0.6
mA
dB
LineReg
LoadReg
V
DO
Test Conditions
Symbol
V
IN
V
OUT
Min
1.6
−0.8
−2.0
−1.2
−2.5
0.02
1
295
200
160
130
110
60
0.1
800
800
Typ
Max
5.5
0.8
1.0
1.2
1.5
0.1
10
380
285
240
200
175
90
1
mA
mA
mA
mA
V
%/V
mV
mV
Unit
V
%
Output Noise
Output Discharge Resistance
(NCP177A option only)
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
54
60
175
20
mV
RMS
W
°C
°C
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. Measured when the output voltage falls 3% below the nominal output voltage (the voltage measured under the condition V
IN
= V
OUT−NOM
+ 0.5 V).
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NCP177
TYPICAL CHARACTERISTICS
V
IN
= V
OUT−NOM
+ 0.5 V or V
IN
= 1.6 V (whichever is higher), V
EN
= 1.2 V, I
OUT
= 1 mA, C
IN
= C
OUT
= 1.0
mF,
T
J
= 25°C
1.814
OUTPUT VOLTAGE (V)
1.804
0.708
OUTPUT VOLTAGE (V)
0.703
0.698
0.693
0.688
0.683
−40
V
OUT−NOM
= 0.7 V
1.794
1.784
1.774
1.764
−40
V
OUT−NOM
= 1.8 V
−20
0
20
40
60
80
−20
0
20
40
60
80
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 3. Output Voltage vs. Temperature
0.10
3.324
LINE REGULATION (%/V)
OUTPUT VOLTAGE (V)
3.314
3.304
3.294
3.284
3.274
3.264
3.254
3.244
3.234
−40
−20
0
20
40
60
80
V
OUT−NOM
= 3.3 V
0.08
0.06
0.04
0.02
0
−0.02
−0.04
−0.06
−0.08
−0.10
−40
Figure 4. Output Voltage vs. Temperature
V
OUT−NOM
= 3.3 V
V
IN
= 3.8 V to 5.25 V
−20
0
20
40
60
80
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 5. Output Voltage vs. Temperature
5
4
LOAD REGULATION (mV)
3
2
1
0
−1
−2
−3
−4
−5
−40
DROPOUT VOLTAGE (mV)
V
OUT−NOM
= 3.3 V
I
OUT
= 1 mA to 500 mA
275
250
225
200
175
150
125
100
75
50
25
0
−20
0
20
40
60
80
0
Figure 6. Line Regulation vs. Temperature
V
OUT−NOM
= 1.8 V
T
J
= 85°C
T
J
= 25°C
T
J
= −40°C
100
200
300
400
500
TEMPERATURE (°C)
OUTPUT CURRENT (mA)
Figure 7. Load Regulation vs. Temperature
Figure 8. Dropout Voltage vs. Output Current
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NCP177
TYPICAL CHARACTERISTICS
V
IN
= V
OUT−NOM
+ 0.5 V or V
IN
= 1.6 V (whichever is higher), V
EN
= 1.2 V, I
OUT
= 1 mA, C
IN
= C
OUT
= 1.0
mF,
T
J
= 25°C
275
250
DROPOUT VOLTAGE (mV)
225
200
175
150
125
100
75
50
25
0
−40
I
OUT
= 100 mA
I
OUT
= 10 mA
−20
0
20
40
60
80
TEMPERATURE (°C)
I
OUT
= 250 mA
V
OUT−NOM
= 1.8 V
DROPOUT VOLTAGE (mV)
I
OUT
= 500 mA
160
V
OUT−NOM
= 3.3 V
140
120
100
80
60
40
20
0
0
100
200
300
400
500
OUTPUT CURRENT (mA)
T
J
= −40°C
T
J
= 25°C
T
J
= 85°C
Figure 9. Dropout Voltage vs. Temperature
1.0
V
OUT−NOM
= 3.3 V
STANDBY CURRENT (mA)
I
OUT
= 500 mA
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
Figure 10. Dropout Voltage vs. Output Current
160
DROPOUT VOLTAGE (mV)
140
120
100
80
60
40
20
0
−40
V
EN
= 0 V
I
OUT
= 250 mA
I
OUT
= 100 mA
I
OUT
= 10 mA
−20
0
20
40
60
80
0.1
0
−40
V
OUT−NOM
= 0.7 V to 3.3 V
−20
0
20
40
60
80
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 11. Dropout Voltage vs. Temperature
90
QUIESCENT CURRENT (mA)
V
OUT−NOM
= 3.3 V
V
OUT−NOM
= 0.7 V
V
OUT−NOM
= 1.8 V
QUIESCENT CURRENT (mA)
80
70
60
50
40
30
20
10
0
−40
I
OUT
= 0 mA
−20
0
20
40
60
80
90
85
80
75
70
65
60
55
50
Figure 12. Standby Current vs. Temperature
I
OUT
= 0 mA
T
J
= −40°C
T
J
= 25°C
T
J
= 85°C
V
OUT−NOM
= 1.8 V
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
TEMPERATURE (°C)
INPUT VOLTAGE (V)
Figure 13. Quiescent Current vs. Temperature
Figure 14. Quiescent Current vs. Input Voltage
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