AP7361C
1A LOW DROPOUT ADJUSTABLE AND FIXED-MODE REGULATOR WITH ENABLE
Description
The AP7361C is a 1A, adjustable and fixed output voltage, ultra-low
dropout linear regulator with enable. The device includes pass
element, error amplifier, band-gap reference, current limit and thermal
shutdown circuitry. The device is turned on when EN pin is set to logic
high level.
Pin Assignments
(Top View)
(Top View)
8
7
OUT
1
NC
2
IN
NC
EN
1
5
OUT
GND
NEW PRODUCT
ADVANCE INFORMATION
The characteristics of the low dropout voltage and low quiescent
current make it suitable for low to medium power applications, for
example, laptop computers, audio and video applications and battery
powered devices. The typical quiescent current is approximately
60µA. Built-in current-limit and thermal-shutdown functions prevent
IC from damage in fault conditions.
The AP7361C is available in U-DFN3030-8 (Type E), SOT89-5,
SOT223, TO252 (DPAK) and SO-8EP packages.
GND
ADJ/NC
3
GND
4
6
5
GND
2
NC
EN
ADJ/NC
3
4
IN
U-DFN3030-8 (Type E)
SOT89-5
(Top View)
3
2
1
OUT
(Top View)
3
2
1
Features
Wide Input Voltage Range: 2.2V to 6.0V
Output Voltage Accuracy:
±1%
Very Low Dropout Voltage (3.3V): 360mV at 1A Typical
Low Quiescent Current (I
Q
): 60µA Typical
Adjustable Output Voltage Range: 0.8V to 5.0V
Fixed Output Options: 1.0V, 1.2V, 1.5V, 1.8V, 2.5V, 2.8V and
3.3V
High PSRR: 75dB @ 1kHz
Current Limit: 1.5A
Fold-Back Short Circuit Protection: 400mA
Thermal Shutdown Protection
Stable with MLCC, E-Cap, Tan-Cap or Solid Capacitor
2.2µF
Ambient Temperature Range: -40° to +85°
C
C
Available in “Green” Molding Compound (No Br, Sb)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
IN
GND
OUT
IN
GND
SOT223
SOT223R
(Top View)
OUT
1
EN
NC
GND
2
3
4
8
7
6
5
(Top View)
IN
NC
NC
NC
OUT
1
ADJ/NC
GND
NC
2
3
4
8
7
6
5
IN
NC
NC
EN
SO-8EP
SO-8EPR
(Top View)
(Top View)
3
2
1
Applications
LCD-TV, Monitor
Set-Top-Box
Home Electrical Appliances
OUT
GND
IN
3
2
1
IN
OUT
GND
TO252 (DPAK)
TO252 (DPAK) R
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and
Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
AP7361C
Document number: DS37274 Rev. 4 - 2
1 of 22
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January 2018
© Diodes Incorporated
AP7361C
Typical Applications Circuit
V
IN
IN
OUT
V
OUT
V
IN
IN
OUT
V
OUT
NEW PRODUCT
ADVANCE INFORMATION
C
IN
4.7µ
F
Enable
EN
AP7361C
C
OUT
4.7µ
F
C
IN
4.7µ
F
Enable
EN
AP7361C
ADJ
GND
R1
C
OUT
4.7µ
F
GND
R2
Fixed Version with EN
Adjustable Output
V
IN
IN
OUT
V
OUT
C
IN
4.7µF
AP7361C
C
OUT
4.7µF
GND
Fixed Version without EN
Pin Descriptions
Pin Number
TO252
U-DFN3030-8
TO252
SOT89-5
SOT223 SOT223R SO-8EP SO-8EPR
(Type E)
(DPAK) (DPAK)R
8
4
1
3
1
3
8
8
Pin
Name
Function
The input of the regulator. Bypass to
ground through at least 1µF ceramic
capacitor.
The output of the regulator. Bypass to
ground through at least 2.2µF
ceramic capacitor. For improved ac
load response a larger capacitor is
recommended.
Ground
Adjustable voltage version only – a
resistor divider from this pin to the
OUT pin and ground sets the output
voltage.
Enable input, active high
No connection
IN
1
5
3
2
3
2
1
1
OUT
4
3
5
2, 6, 7
2
3
1
–
2
–
–
–
1
–
–
–
2
–
–
–
1
–
–
–
4
–
2
3, 5, 6, 7
3
2
5
4, 6, 7
GND
ADJ/NC
EN
NC
AP7361C
Document number: DS37274 Rev. 4 - 2
2 of 22
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January 2018
© Diodes Incorporated
AP7361C
Functional Block Diagram
IN
OUT
Current Limit
and Thermal
Shutdown
IN
Current Limit
and Thermal
Shutdown
OUT
NEW PRODUCT
ADVANCE INFORMATION
EN
Gate
Driver
EN
R
Gate
Driver
ADJ
0.8V
R
0.8V
GND
GND
Fixed Version with EN
Adjustable Version
IN
Current Limit
and Thermal
Shutdown
OUT
Gate
Driver
R
0.8V
R
GND
Fixed Version without EN
AP7361C
Document number: DS37274 Rev. 4 - 2
3 of 22
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January 2018
© Diodes Incorporated
AP7361C
Absolute Maximum Ratings
(@T
A
= +25° unless otherwise specified.) (Note 4)
C,
Symbol
V
IN
–
T
J
T
STG
Input Voltage
OUT, ADJ, EN Voltage
Operating Junction Temperature Range
Storage Temperature Range
Power Dissipation
U-DFN3030-8 (Type E)
TO252 (DPAK)
P
D
Power Dissipation
SOT223
SOT89-5
SO-8EP
ESD HBM
ESD MM
Notes:
Parameter
Rating
6.5
V
IN
+0.3
-40 to +150
-65 to +150
Internally limited by maximum junction
temperature of +150°
C
1700
1250
1100
800
1190
>2
> 200
Unit
V
V
°
C
°
C
–
NEW PRODUCT
ADVANCE INFORMATION
P
D
mW
Human Body Model ESD Protection
Machine Model ESD Protection (Note 5)
KV
V
4. Stresses greater than the 'Absolute Maximum Ratings' specified above may cause permanent damage to the device. These are stress ratings only;
functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be
affected by exposure to absolute maximum rating conditions for extended periods of time.
5. ESD MM rating at 150V for EN pin in SOT89-5 package.
Recommended Operating Conditions
(@T
A
= +25° unless otherwise specified.)
C,
Symbol
V
IN
V
OUT
I
OUT
T
A
Note:
Parameter
Input Voltage
Output Voltage
Output Current (Note 6)
Operating Ambient Temperature
Min
2.2
0.8
0
-40
Max
6.0
5.0
1.0
+85
Unit
V
V
A
C
6. The device maintains a stable, regulated output voltage without a load current. When the output current is large, attention should be given to the limitation
of the package power dissipation.
AP7361C
Document number: DS37274 Rev. 4 - 2
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January 2018
© Diodes Incorporated
AP7361C
Electrical Characteristics
Symbol
V
REF
I
ADJ
I
Q
I
SHDN
Parameter
FB Reference Voltage, ADJ pin
ADJ Pin Leakage Current
Input Quiescent Current
Input Shutdown Current
–
Enabled, I
OUT
= 0A
V
EN
= 0V, I
OUT
= 0A
I
OUT
= 100mA,
T
A
= +25°
C
1.0V≤V
OUT
<1.5V
1.5 V≤V
OUT
≤3.3V
(@T
A
= +25° V
IN
= V
OUT
+1V, C
IN
= 4.7μF, C
OUT
= 4.7μF, V
EN
= V
IN
, unless otherwise specified.)
C,
Test Conditions
I
OUT
= 10mA, T
A
= +25°
C
Min
0.792
–
–
-1
V
OUT
(s)-
0.015
V
OUT
(s)*
0.99
–
–
-1.0
-1.5
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
0
1.0
–
-0.1
–
1.0
1.1
–
–
–
–
–
–
–
Typ
0.8
0.1
60
0.05
V
OUT
(s)
V
OUT
(s)
0.01
–
–
–
710
600
500
400
300
200
90
840
780
710
660
610
570
440
340
–
–
3.0
–
100
–
1.5
400
75
55
150
±100
150
20
Max
0.808
0.5
80
1
V
OUT
(s)+
0.015
V
OUT
(s)*
1.01
0.1
0.2
1.0
1.5
750
640
540
440
340
250
140
–
–
–
–
–
–
–
–
0.3
V
IN
–
0.1
–
–
–
–
–
–
–
–
–
–
V
V
MΩ
µA
Ω
A
A
mA
dB
µs
ppm/°
C
°
C
°
C
mV
Unit
V
µA
µA
µA
NEW PRODUCT
ADVANCE INFORMATION
V
OUT
Output Voltage Accuracy
V
ΔV
OUT
ΔV
IN
V
OUT
V
OUT
/ V
OUT
Line Regulation
C
V
IN
= V
OUT
+1V to 5.5V, T
A
= +25°
I
OUT
= 100mA
-40° ≤T
A
≤ +85°
C
C
I
OUT
from 1.0mA to 1A
1.2V<V
OUT
≤ 3.3V
1.0V≤ V
OUT
≤1.2V
1.0V≤V
OUT
<1.1V
1.1V≤V
OUT
<1.2V
1.2V≤V
OUT
<1.3V
I
OUT
= 300mA
1.3V≤V
OUT
<1.4V
1.4V≤V
OUT
<1.5V
1.5V≤V
OUT
<2.6V
2.6V≤V
OUT
≤3.3V
%/V
%
%
Load Regulation
V
DROPOUT
Dropout Voltage (Note 7)
1.0V≤V
OUT
<1.1V
1.1V≤V
OUT
<1.2V
1.2V≤V
OUT
<1.3V
I
OUT
= 1A
1.3V≤V
OUT
<1.4V
1.4V≤V
OUT
<1.5V
1.5V≤V
OUT
<2.0V
2.0V≤V
OUT
<2.6V
2.6V≤V
OUT
≤3.3V
V
IL
V
IH
R
ENPD
I
EN
R
PD
I
OUT
I
LIMIT
I
SHORT
PSRR
t
ST
EN Input Logic Low Voltage
EN Input Logic High Voltage
EN Pull-Down Resistor
EN Input Leakage Current
Output Discharge Resistor
Maximum Output Current
Current Limit
Short-Circuit Current
Power Supply Rejection Ratio
(Note 8)
Start-Up Time
Output Voltage Temperature
Coefficient
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
–
–
–
V
IN
= 5.5V, V
EN
= 0V
V
OL
=1V
V
IN
= V
OUT
+1V
V
IN
= V
OUT
+1V(V
IN MINI
=2.2V)
V
IN
= V
OUT
+1V, Output Voltage < 15% V
OUT
f = 1kHz, I
OUT
= 100mA
f = 10kHz, I
OUT
= 100mA
V
OUT
= 3V, C
OUT
= 2.2µF, R
L
= 30Ω
I
OUT
= 100mA, -40° ≤ T
A
≤ +85°
C
C
–
–
ΔV
OUT
ΔT
A
V
OUT
T
SHDN
T
HYS
Notes:
7. Dropout voltage is the voltage difference between the input and the output at which the output voltage drops 2% below its nominal value. This parameter
only applies to output voltages above 1.2V since minimum V
IN
= 2.2V.
8. For V
IN
2.5V and V
IN
= V
OUT
+1V. For V
IN
< 2.5V, the PSRR performance may be reduced.
AP7361C
Document number: DS37274 Rev. 4 - 2
5 of 22
www.diodes.com
January 2018
© Diodes Incorporated
