APL1117
1A Low Dropout Fast Response Positive Adjustable Regulator and
Fixed 1.2V,1.8V, 2.5V, 2.85V, 3.3V and 5V
General Description
Features
•
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•
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The APL1117 is a low dropout three-terminal adjustable
regulators with 1A output current capability. In order to
Guaranteed Output Voltage Accuracy within 2%
Fast Transient Response
obtain lower dropout voltage and faster transient
response, which is critical for low voltage applications,
Guaranteed Dropout Voltage at Multiple Currents
Load Regulation : 0.1% Typ.
the APL1117 has been optimized. The device is available
in an adjustable version and fixed output voltages of 1.2V,
Line Regulation : 0.03% Typ.
Low Dropout Voltage : 1.1V Typ. at IOUT =1A
1.8V, 2.5V, 2.85V, 3.3V, and 5V. The output available voltage range of an adjustable version is from 1.25 to 10.7V
Current-Limit : 1A Typ. at TJ=25°C
with an input supply below 12V. Dropout voltage is guaranteed at a maximum of 1.3V at 1A. Current limit is
On-Chip Thermal Limiting : 150°C Typ.
Adjustable Output : 1.25~10.7V
trimmed to ensure specified output current and controlled
short-circuit current. On-chip thermal limiting provides
Standard 3-pin TO-220, TO-252-3, TO-263-3 and
SOT-223 Power Packages
•
protection against any combination of overload that would
create excessive junction temperatures. The APL1117 is
Lead Free and Green Devices Available
available in the industry standard 3-pin TO-220, TO-2523, TO-263-3, and the low profile surface mount SOT-223
(RoHS Compliant)
power packages which can be used in applications where
space is limited.
Applications
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Active SCSI Terminators
Low Voltage Logic Supplies
Post Regulator for Switching Power Supply
Simplified Application Circuits
1.25V to 10.7V Adjustable Regulator
VIN
IN
APL1117
OUT
ADJ
Improving Ripple Rejection
VOUT1
VIN
R1
121Ω
+
10µ F
C1*
10µF
+
R2
1k
100µ F
C2
R2
365Ω
1%
* Needed if device is far from filter capacitors
V OUT
+
APL1117
IN
OUT
ADJ
R1
121Ω
1%
+
VOUT
150µF
C1
10µF
* C1 improves ripple rejection.
XC should be approximately
equal to R1 at ripple frequency
R1 + R2
= 1.250V X
R1
5V Regulator with Shutdown
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright ANPEC Electronics Corp.
Rev. C.10 - Sep., 2010
1
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APL1117
Ordering and Marking Information
Package Code
F : TO-220 G : TO-263-3 U : TO-252-3 V : SOT-223
Operating Ambient Temperature Range
C : 0 to 70 oC
Handling Code
TU : Tube
TR : Tape & Reel
Voltage Code
12 : 1.2V
18 : 1.8V
25 : 2.5V
28 : 2.85V
33 : 3.3V
50 : 5V
Blank : Adjustable Version
Assembly Material
L : Lead Free Device
G : Halogen and Lead Free Device
APL1117
Assembly Material
Handling Code
Temperature Range
Package Code
Voltage Code
APL1117 F/G/U:
APL1117 V:
APL1117
XXXXX
VV
APL1117
XXXXX
XXXXX - Date Code ; VV-Voltage Code
APL1117
XXXXX
APL1117
XXXXXVV
XXXXX - Date Code ; VV-Voltage Code
Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which
are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020D for
MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen
free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by
weight).
Pin Configuration
Front View for TO-220
3
VIN
2
VOUT
1
Front View for TO-263-3
TAB IS VOUT
ADJ/GND
Front View for TO-252-3
TAB IS VOUT
3
VIN
2
VOUT
1
ADJ/GND
Copyright ANPEC Electronics Corp.
Rev. C.10 - Sep., 2010
3
VIN
2
VOUT
1
ADJ/GND
Front View for SOT-223
TAB IS VOUT
2
3
VIN
2
VOUT
1
ADJ/GND
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APL1117
Absolute Maximum Ratings
Symbol
(Note 1)
Parameter
Rating
Unit
Input Voltage
15
13
9
APL1117, APL1117-33
APL1117-50
APL1117-12, APL1117-18, APL1117-25, APL1117-28
VIN
V
°C
TJ
Junction Temperature Range
0 to 150
TSTG
Storage Temperature Range
-65 to +150
°C
TSDR
Maximum Lead Soldering Temperature, 10 Seconds
260
°C
Note 1: The values here show the absolute maximum rating, and for normal usage please refer the test condition in Electrical
Characteristics Table.
Recommended Operating Conditions
Symbol
TA
TJ
Parameter
Range
Ambient Temperature
Junction Temperature
Unit
0 ~ 70
o
0 ~ 125
o
C
C
Electrical Characteristics
Unless otherwise noted, these specifications apply over CIN = 10µF , COUT = 10µF, and TA = 0 to 70°C. Typical values
refer to TA = 25°C.
Symbol
VREF
Parameter
APL1117
Test Conditions
Unit
Min.
Typ.
Max.
1.225
1.250
1.275
APL1117-12 TJ = 0~125°C,
0≤ IOUT ≤ 1A, 2.65V≤ VIN ≤9V
1.176
1.200
1.224
APL1117-18 TJ = 0~125°C,
0≤ IOUT ≤ 1A, 3.25V≤ VIN ≤9V
1.764
1.800
1.836
APL1117-25 TJ = 0~125°C,
0≤ IOUT ≤ 1A, 3.95V≤ VIN ≤9V
2.450
2.500
2.550
APL1117-28 TJ = 0~125°C,
0≤ IOUT ≤1A, 4.25V≤ VIN ≤9V
2.790
2.850
2.910
APL1117-33 TJ = 0~125°C,
0≤ IOUT ≤ 1A, 4.75V≤ VIN ≤12V
3.235
3.300
3.365
APL1117-50 TJ = 0~125°C,
0≤ IOUT ≤ 1A, 6.45V≤ VIN ≤12V
4.900
5.000
5.100
Reference Voltage
10mA≤ IOUT ≤1A, 1.4V≤(VIN -VOUT) ≤10.75V,
TJ = 0~125°C
V
Output Voltage
VOUT
V
Line Regulation
APL1117 IOUT =10mA, 1.5V≤(VIN -VOUT)≤10.75V (Note 2)
REGLINE
-
0.03
0.2
APL1117-12 IOUT = 0A, 2.65V≤ VIN ≤9V (Note 2)
-
1
6
APL1117-18 IOUT = 0A, 3.25V≤ VIN ≤9V (Note 2)
-
1
6
APL1117-25 IOUT = 0A, 3.95V≤ VIN ≤9V (Note 2)
-
1
6
APL1117-28 IOUT = 0A, 4.25V≤ VIN ≤9V
-
1
6
APL1117-33 IOUT = 0A, 4.75V≤ VIN ≤12V (Note 2)
-
1
6
APL1117-50 IOUT = 0A, 6.45V≤ VIN ≤12V
-
1
6
Copyright ANPEC Electronics Corp.
Rev. C.10 - Sep., 2010
3
(Note 2)
(Note 2)
%
mV
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APL1117
Electrical Characteristics (Cont.)
Unless otherwise noted, these specifications apply over CIN = 10µF , COUT = 10µF, and TA = 0 to 70°C. Typical values
refer to TA = 25°C.
Symbol
Parameter
Load Regulation
APL1117 (VIN -VOUT)=3V, 0≤ IOUT ≤1A (Note 2)
VD
ILIMIT
IADJ
Unit
Min.
Typ.
Max.
-
0.1
0.4
(Note 2)
-
1
10
APL1117-18 VIN = 3.25V, 0≤ IOUT ≤1A (Note 2)
-
1
10
APL1117-25 VIN = 3.95V, 0≤ IOUT ≤1A
(Note 2)
-
1
10
APL1117-28 VIN = 4.25V, 0≤ IOUT ≤1A
(Note 2)
-
1
10
APL1117-33 VIN = 4.75V, 0≤ IOUT ≤1A (Note 2)
-
1
10
APL1117-50 VIN = 6.45V, 0≤ IOUT ≤1A
-
1
10
-
1
1.05
1.1
1.1
1.2
1.3
V
1000
-
-
mA
-
60
120
µA
APL1117-12 VIN = 2.65V, 0≤ IOUT ≤1A
REGLOAD
APL1117
Test Conditions
(Note 2)
Dropout Voltage
IOUT = 100mA (Note 3)
IOUT = 500mA (Note 3)
IOUT = 1A (Note 3)
Current-Limit
(VIN -VOUT) = 5V, TJ = 25°C
Adjust Pin Current
APL1117
(VIN -VOUT) = 3V, IOUT = 10mA
%
mV
∆IADJ
Adjust Pin Current Change 10mA≤ IOUT ≤1A,
APL1117 1.4V≤ (VIN -VOUT) ≤10.75V
-
0.2
5
µA
IO
Minimum Load Current
(VIN -VOUT) = 10.75V (Note 4)
APL1117
-
1.7
-
mA
60
75
-
dB
-
0.01
0.02
%/ W
-
0.5
-
%
PSRR
Ripple Rejection
fRIPPLE =120Hz, VRIPPLE = 1VP-P, (VIN -VOUT) = 3V
TR
Thermal Regulation
TJ = 25°C, 30ms Pulse
TS
Temperature Stability
LS
Long-Term Stability
TJ = 125°C, 1000Hrs.
-
0.3
-
%
VN
RMS Output Noise
TJ = 25°C, 10Hz≤F≤10kHz, (% of VOUT)
-
0.003
-
%
-
1
1.05
1.1
1.1
1.2
1.3
V
1000
-
-
mA
-
60
120
µA
(Note2)
VD
ILIMIT
IADJ
Dropout Voltage
IOUT=100mA
IOUT=500mA (Note2)
IOUT=1A (Note2)
Current-Limit
(VIN -VOUT)=5V, TJ=25°C
Adjust Pin Current
APL1117
(VIN -VOUT)=3V, IOUT=10mA
∆IADJ
Adjust Pin Current Change 10mA≤ IOUT ≤1A,
APL1117 1.4V≤(VIN -VOUT) ≤10.75V
-
0.2
5
µA
IO
Minimum Load Current
(VIN -VOUT)=10.75V (Note 4)
APL1117
-
1.7
-
mA
60
75
-
dB
-
0.01
0.02
%/W
-
0.5
-
%
PSRR
Ripple Rejection
fRIPPLE=120Hz, VRIPPLE=1VP-P, (VIN -VOUT)=3V
TR
Thermal Regulation
TJ=25°C, 30ms Pulse
TS
Temperature Stability
LS
Long-Term Stability
TJ=125°C,1000Hrs.
-
0.3
-
%
VN
RMS Output Noise
TJ=25°C,10Hz≤F≤10kHz, (% of VOUT)
-
0.003
-
%
Copyright ANPEC Electronics Corp.
Rev. C.10 - Sep., 2010
4
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APL1117
Electrical Characteristics (Cont.)
Unless otherwise noted , these specifications apply over CIN = 10µF , COUT = 10µF , and TA = 0 to 70°C. Typical values
refer to TA = 25°C.
APL1117
Symbol
Parameter
Test Conditions
Unit
Min.
Typ.
Max.
θJC
SOT-223
Thermal Resistance Junction TO-252
to Case
TO-263
TO-220
-
15
10
3
3
-
°C/ W
OT
Over-Temperature Point
-
150
-
°C
Quiescent Current
APL1117-12,18,25,28 VIN≤9V
APL1117-33,50 VIN≤12V
-
5.5
5.5
10
10
mA
IQ
Note 2: See thermal regulation specifications for changes in output voltage due to heating effects. Load line regulations are measured
at a constant junction temperature by low duty cycle pulse testing.
Note 3: Dropout voltage is specified over the full output current range of the device. Dropout voltage is defined as the minimum input/
output differential measured at the specified output current. Test points and limits are also shown on the Dropout Voltage curve.
Note 4: Minimum load current is defined as the minimum output current required to maintain regulation.
Copyright ANPEC Electronics Corp.
Rev. C.10 - Sep., 2010
5
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APL1117
Typical Operating Characteristics
Load Transient Response
Line Transient Response
5
0.02
APL1117-33
5
0.01
0.1
3.5
3
Input Voltage (V)
Output Current (A)
4
0.15
APL1117-33
CIN=10µF
COUT=10µF Tantalum
VIN=5V
4.5
6
0
2.5
2
-0.01
1.5
1
CIN=10µF
COUT=10µF Tantalum
IOUT=0.1A
4
3
0.05
2
0
-0.02
1
0.5
0
-100
100
300
500
Time (µS)
700
-0.03
900
0
-20
Dropout Voltage vs. Output Current
APL1117-33
1.15
Output Voltage (V)
Dropout Voltage (V)
5
1.1
1.05
1
4
3
2
1
0.95
0
0.2
0.4
0.6
0.8
0
0
1
1
2
3
4
5
6
7
8
Output Current (A)
Input Voltage (V)
Input Current vs. Input Voltage
Current Limit vs. Input Voltage
6
9
2.4
APL1117-33
APL1117-33
2.2
5
4
Current Limit (A)
Input Current (mA)
-0.05
180
130
6
1.2
3
2
1
0
80
Time (µS)
Output Voltage vs. Input Voltage
1.25
0.9
30
2
1.8
1.6
1.4
1.2
0
2
4
6
8
10
1
12
5
Input Voltage (V)
Copyright ANPEC Electronics Corp.
Rev. C.10 - Sep., 2010
6
7
9
11
Input Voltage (V)
13
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APL1117
Typical Operating Characteristics (Cont.)
Output Voltage vs. Temperature
Output Voltage vs. Temperature
2.6
1.35
2.5
2.4
Output Voltage (V)
Output Voltage (V)
1.3
1.25
1.2
2.3
2.2
2.1
2
1.9
1.8
1.15
1.7
1.1
-50
-25
0
25
50
75
100
1.6
-50
125
-25
0
Temperature (°C)
Output Voltage vs. Temperature
75
100
125
5.3
3.3
5.2
3.2
Output Voltage (V)
Output Voltage (V)
50
Output Voltage vs. Temperature
3.4
3.1
3
2.9
5.1
5
4.9
4.8
2.8
2.7
-50
25
Temperature (°C)
-25
0
25
50
75
Temperature (°C)
100
4.7
-50
125
-25
0
25
50
75
Temperature (°C)
100
125
Current Limit vs. Temperature
Input Current vs. Temperature
8
1.9
APL1117-33
APL1117-33
1.8
7
6
Current Limit (A)
Input Current (mA)
1.7
5
4
VIN-VOUT=5V
1.6
1.5
1.4
1.3
1.2
3
1.1
2
-50
-25
0
25
50
75
100
1
-50
125
Temperature (°C)
Copyright ANPEC Electronics Corp.
Rev. C.10 - Sep., 2010
0
50
100
150
Temperature (°C)
7
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APL1117
Typical Operating Characteristics (Cont.)
PSRR vs. Frequency
+0
Cadj=22µF
IOUT=0.1A
Vripple=1Vp-p
-10
-20
Adjustable Pin Current vs. Temperature
70
APL1117-33
66
64
Adjustable Pin Current (µA)
-30
PSRR (dB)
APL1117-Adj
68
-40
-50
-60
VIN-VOUT>=Vdropout
-70
-80
VIN-VOUT>=3V
-90
-100
10
100
1k
10k
200k
62
60
58
56
54
52
50
-50
-25
Frequency (Hz)
0
25
50
75
100
125
Temperature (°C)
Block Diagram
VOUT
VIN
Current-Limit
Thermal
Protection
Copyright ANPEC Electronics Corp.
Rev. C.10 - Sep., 2010
Voltage
Regulation
8
ADJ/GND
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APL1117
Application Information
Output Voltage
The APL1117 develops a 1.25V reference voltage between
VIN
the output and the adjust terminal. By placing a resistor
between these two terminals, a constant Current is caused
APL1117
IN
OUT
ADJ
Rp
PARASITIC
LINE RESISTANCE
to flow through R1 and down through R2 to set the overall
output voltage. Normally, this current is chosen to be the
R1
specified minimum load current of 10mA. For fixed voltage devices R1 and R2 are included in the device.
R2
APL1117
IN
OUT
ADJ
V IN
V OUT
V REF
IADJ
60 µ A
CONNECT
R1 TO CASE
RL
CONNECT
R2 TO LOAD
R1
Figure 2. Connections for Best Load Regulation
R2
Input Capacitor
R2
= V REF (1+
)+IADJ R2
R1
An input capacitor of 10µF or greater is recommended.
Figure 1. Basic Adjustable Regulator
Tantalum or aluminum electrolytic capacitors can be used
for bypassing. Larger Values will improve ripple rejection
V OUT
by bypassing the input to the regulator.
Load Regulation
Output Capacitor
When the adjustable regulator is used, load regulation
The APL1117 requires an output capacitor to maintain sta-
will be limited by the resistance of the wire connecting the
regulator to the load. The data sheet specification for load
bility and improve transient response. Proper capacitor
selection is important to ensure proper operation. The
regulation is measured at the output pin of the device.
Best load regulation is obtained when the top of the re-
APL1117 output capacitor selection is dependent upon
the ESR (equivalent series resistance) of the output ca-
sistor divider (R1) is tied directly to the output pin of the
device not to the load. For fixed voltage, devices the top of
pacitor to maintain stability. When the output capacitor is
10µF or greater, the output capacitor should have an ESR
R1 is internally connected to the output, and the ground
pin can be connected to low side of the load. If R1 is
less than 1Ω. This will improve transient response as
well as promote stability. A low-ESR solid tantalum ca-
connected to the load, RP is multiplied by the divider ratio,
the effective resistance between the regulator and the
pacitor works extremely well and provides good transient
response and stability over temperature.
load would be:
Aluminum electrolytics can also be used, as long as the
ESR of the capacitor is