AP7365
600mA, LOW QUIESCENT CURRENT
FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR
Description
The AP7365 is a 600mA, adjustable and fixed output voltage, low
dropout linear regulator. This device includes pass element, error
amplifier, band-gap, current limit and thermal shutdown circuitry. The
device is turned on when EN pin is set to logic high level.
The characteristics of low dropout voltage and low quiescent current
make it suitable for low power applications such as battery powered
devices. The typical quiescent current is approximately 35μA. Built-in
current-limit and thermal-shutdown functions prevent IC from damage
in fault conditions.
This device is available with adjustable output from 0.8V to 5.0V, and
fixed version with 0.8V, 1.0V, 1.2V, 1.5V, 1.8V, 2.0V, 2.5V, 2.8V,
3.0V, 3.3V and 3.9V outputs. Please contact your local sales office for
other voltage options.
The AP7365 is available in SOT25, SOT89, SOT223, and U-
DFN2020-6 packages.
Pin Assignments
(Top View)
IN 1
GND 2
EN 3
4 NC
5 OUT
IN 1
GND 2
EN 3
4 ADJ
(Top View )
5 OUT
SOT25 (Fixed Output)
SOT25 (ADJ Output)
(W Package)
(Top View)
(W Package)
(Top View)
EN 1
GND 2
IN 3
6 NC
5 NC
4 OUT
EN
1
GND
2
IN
3
6
ADJ
5
NC
4
OUT
U-DFN2020-6 (Fixed Output)
U-DFN2020-6 (ADJ Output)
Features
600mA Low Dropout Regulator with EN
Very low I
Q
: 35µA
Wide Input Voltage Range: 2V to 6V
Wide Adjustable Output: 0.8V to 5.0V
Fixed Output Options: 0.8V to 3.9V (0.1V Step Size Possible)
High PSRR: 65dB at 1kHz
Fast Start-Up Time: 200µs
Stable with Low ESR, 1µF Ceramic Output Capacitor
Excellent Load/Line Transient Response
Low Dropout: 300mV at 600mA
Current Limit and Short Circuit Protection
Thermal Shutdown Protection
Ambient Temperature Range: -40° to +85°
C
C
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
(SN Package)
(SN Package)
(Top View)
3
2
1
OUT
IN (TAB)
GND
(Top View)
3
2
1
IN
GND (TAB)
OUT
SOT89 (Fixed output)
SOT89 (Fixed output)
(Y Package)
(YR Package)
(Top View)
3
2
1
IN
GND (TAB)
OUT
(Top View)
3
2
1
OUT
IN (TAB)
GND
Applications
Servers and Notebook Computers
Low and Medium Power Applications
FPGA and DSP Core or I/O Power
Consumer Electronics
SOT223 (Fixed output)
(E Package)
SOT223 (Fixed output)
(ER Package)
(Top View)
3
2
1
IN
OUT (TAB)
GND
SOT223 (Fixed output)
(EV Package)
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html 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.
AP7365
Document number: DS32260 Rev. 10 - 2
1 of 18
www.diodes.com
October 2017
© Diodes Incorporated
AP7365
Typical Applications Circuit
V
IN
IN
OUT
V
OUT
V
IN
IN
OUT
V
OUT
AP7365
1μF
Enable
EN
GND
ADJ
R1
1μF
AP7365
1μF
Enable
EN
GND
1μF
R2
Adjustable Output
Fixed Output
R
V
OUT
½
V
REF
1
1
where R
2
80K
R
2
Pin Descriptions
Pin Number
Pin
Name
SOT25 SOT25
(Fixed) (ADJ)
U-DFN2020-6
(Fixed)
U-DFN2020-6
(ADJ)
SOT89
SOT89
(Y Package) (YR Package)
SOT223
SOT223
SOT223
(EV Package)
(E Package) (ER Package)
3
2
—
—
—
1
2
1
—
—
—
3
3
1
—
—
—
2
Functions
IN
GND
EN
ADJ
NC
OUT
1
2
3
—
4
5
1
2
3
4
—
5
3
2
1
—
5, 6
4
3
2
1
6
5
4
Voltage Input Pin. Bypass to
ground through at least 1µF MLCC
capacitor
Ground
Enable Input, Active High
Output Feedback Pin
No Connection
Voltage Output Pin. Bypass to
ground through 1µF MLCC
capacitor
Functional Block Diagram
IN
Current Limit
and Thermal
Shutdown
OUT
IN
Current Limit
and Thermal
Shutdown
OUT
EN
Gate
Driver
EN
R
Gate
Driver
ADJ
0.8V
R
0.8V
GND
GND
Fixed Version
Adjustable Version
AP7365
Document number: DS32260 Rev. 10 - 2
2 of 18
www.diodes.com
October 2017
© Diodes Incorporated
AP7365
Absolute Maximum Ratings
(@T
A
= +25° unless otherwise specified.)
C,
Symbol
ESD HBM
ESD MM
V
IN
T
ST
T
J
Parameter
Human Body Model ESD Protection
Machine Model ESD Protection
Input Voltage
OUT, EN Voltage
Continuous Load Current per Channel
Storage Temperature Range
Maximum Junction Temperature
Ratings
2000
200
6.5
V
IN
+0.3
Internal Limited
-65 to +150
+150
Unit
V
V
V
V
°
C
°
C
Recommended Operating Conditions
(@T
A
= +25° unless otherwise specified.)
C,
Symbol
V
IN
I
OUT
T
A
Note:
Parameter
Input Voltage
Output Current (Note 4)
Operating Ambient Temperature
Min
2
0
-40
Max
6
600
+85
Unit
V
mA
°
C
4. The device maintains a stable, regulated output voltage without a load current.
Electrical Characteristics
Symbol
V
REF
I
ADJ
V
OUT
V
OUT
/V
IN
/V
(@T
A
= +25° V
IN
= V
OUT
+1V, C
OUT
= 1μF, C
IN
= 1μF, V
EN
= 2V, unless otherwise specified.)
C,
Test Conditions
I
OUT
= 0mA
—
T
A
= -40° to +85°
C
C,
I
OUT
= 10% of I
OUT-Max
V
IN
= (V
OUT
+1V) to V
IN-Max
,
V
EN
= V
IN
, I
OUT
= 1mA
V
IN
= (V
OUT
+1V) to V
IN-Max
,
I
OUT
= 1mA to 600mA
V
OUT
< 2.5V, I
OUT
= 600mA
V
OUT
≥ 2.5V, I
OUT
= 600mA
V
EN
= V
IN
, I
OUT
= 0mA
V
EN
= 0V, I
OUT
= 0mA
V
EN
= 0V, OUT grounded
V
EN
= 0V to 2.0V in 1μs,
I
OUT
= 600mA
V
IN
= [V
OUT
+1V] V
DC
+ 0.5V
ppAC
,
f = 1kHz, I
OUT
= 50mA
V
IN
= V
IN-Min
to V
IN-Max
,
V
OUT
< 0.2V (fixed version) or 25% of
V
OUT
(ADJ version)
V
IN
= V
IN-Min
to V
IN-Max
,
V
OUT
/R
OUT
= 2.5A
V
IN
= V
IN-Min
to V
IN-Max
V
IN
= V
IN-Min
to V
IN-Max
V
IN
= 0V or V
IN-Max
—
—
Min
—
—
-2
—
-1.0
—
—
—
—
—
—
—
Typ
0.8
0.1
—
0.02
—
370
300
35
0.1
0.1
200
65
Max
—
1.0
+2
0.20
+1.0
600
400
80
1.0
1.0
—
—
Unit
V
μA
%
%/V
%
mV
μA
μA
μA
μs
dB
Parameter
ADJ Reference Voltage (Adjustable Version)
ADJ Leakage (Adjustable Version)
Output Voltage Accuracy
Line Regulation
V
OUT
/V
OUT
Load Regulation
V
DROPOUT
I
Q
I
SHDN
I
LEAK
t
ST
PSRR
Dropout Voltage (Note 5)
Input Quiescent Current
Input Shutdown Current
Input Leakage Current
Start-Up Time
PSRR (Note 6)
I
SHORT
Short-Circuit Current
—
240
—
mA
I
LIMIT
V
IL
V
IH
I
EN
T
SHDN
T
HYS
Notes:
Current limit
EN Input Logic Low Voltage
EN Input Logic High Voltage
EN Input Current
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
0.8
—
1.4
-1
—
—
1.4
—
—
—
+145
+15
—
0.4
—
+1
—
—
A
V
V
μA
°
C
°
C
5. 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 input voltages above minimum V
IN
= 2.0V.
6. At V
IN
< 2.3V, the PSRR performance may be reduced.
AP7365
Document number: DS32260 Rev. 10 - 2
3 of 18
www.diodes.com
October 2017
© Diodes Incorporated
AP7365
Electrical Characteristics
Symbol
(Cont.) (@T
A
= +25° V
IN
= V
OUT
+1V, C
OUT
= 1μF, C
IN
= 1μF, V
EN
= 2V, unless otherwise specified.)
C,
Test Conditions
SOT25 (Note 7)
U-DFN2020-6 (Note 7)
SOT89 (Note 7)
SOT223 (Note 7)
SOT25 (Note 7)
U-DFN2020-6 (Note 7)
SOT89 (Note 7)
SOT223 (Note 7)
Min
—
—
—
—
—
—
—
—
Typ
169
132
133
142
31
48
30
39
Max
—
—
—
—
—
—
—
—
Unit
Parameter
JA
Thermal Resistance Junction-to-Ambient
°
C/W
JC
Thermal Resistance Junction-to-Case
°
C/W
Note:
7. Test condition for all packages: Device mounted on FR-4 substrate PC board, 1oz copper, with minimum recommended pad layout.
Typical Performance Characteristics
V
EN
= 0 to 2V (1V/div)
V
IN
= 5V
C
IN
= C
OUT
= 1μF
V
EN
= 0 to 2V (1V/div)
V
IN
= 5V
C
IN
= C
OUT
= 1μF
V
OUT
= 3.3V (1V/div)
with no load
Time (40μs/div)
V
OUT
= 3.3V (1V/div)
with 600mA load
Time (40μs/div)
Start-Up Time
Start-Up Time
V
IN
= 4.3V to 5.3V (1V/div)
t
R
= t
F
= 2μs
C
IN
= none, C
OUT
= 1μF
V
IN
= 4.3V to 5.3V (1V/div)
t
R
= t
F
= 2μs
C
IN
= none, C
OUT
= 1μF
V
OUT
= 3.3V (20mV/div)
V
OUT
= 3.3V (20mV/div)
I
OUT
= 300mA (200mA/div)
I
OUT
= 60mA (200mA/div)
Time (40μs/div)
Time (40μs/div)
Line Transient Response
Line Transient Response
AP7365
Document number: DS32260 Rev. 10 - 2
4 of 18
www.diodes.com
October 2017
© Diodes Incorporated
AP7365
Typical Performance Characteristics
(Cont.)
V
OUT
= 1.8V (200mV/div)
V
OUT
= 1.8V (200mV/div)
V
IN
= V
EN
= 2.8V
C
IN
= C
OUT
= 1μF
t
R
= t
F
= 1μs
V
IN
= V
EN
= 2.8V
C
IN
= C
OUT
= 1μF
t
R
= t
F
= 1μs
I
OUT
= 10mA to 600mA (500mA/div)
I
OUT
= 10mA to 300mA (500mA/div)
Load Transient Response
Time (100μs/div)
Load Transient Response
Time (100μs/div)
V
OUT
= 3.3V (200mV/div)
V
OUT
= 3.3V (200mV/div)
V
IN
= V
EN
= 4.3V
C
IN
= C
OUT
= 1μF
t
R
= t
F
= 1μs
V
IN
= V
EN
= 4.3V
C
IN
= C
OUT
= 1μF
t
R
= t
F
= 1μs
I
OUT
= 10mA to 600mA (500mA/div)
I
OUT
= 10mA to 300mA (500mA/div)
Load Transient Response
Time (100μs/div)
Load Transient Response
Time (100μs/div)
AP7365
Document number: DS32260 Rev. 10 - 2
5 of 18
www.diodes.com
October 2017
© Diodes Incorporated
