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. The device included 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, for example,
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.
SOT25 (Fixed Output)
SOT25 (ADJ Output)
IN 1
GND 2
EN 3
4 NC
Pin Assignments
(Top View )
5 OUT
IN 1
GND 2
EN 3
4 ADJ
(Top View )
5 OUT
(Top View)
(Top View)
NEW PRODUCT
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 any other voltage options.
The AP7365 is available in SOT25, SOT89-3, SOT223, and
U-DFN2020-6 packages.
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°C to +85°C
Packaging
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
(Top View)
3
2
1
IN
GND (TAB)
OUT
(Top View)
3
2
1
OUT
IN (TAB)
GND
SOT89-3L (Fixed output)
SOT89R-3L (Fixed output)
(Top View)
3
2
1
IN
GND (TAB)
OUT
(Top View)
3
2
1
OUT
IN (TAB)
GND
SOT223-3L (Fixed output)
SOT223R-3L (Fixed output)
(Top View)
3
2
1
IN
OUT (TAB)
GND
Applications
•
•
•
•
Servers and notebook computers
Low and medium power applications
FPGA and DSP core or I/O power
Consumer Electronics
SOT223V-3L (Fixed output)
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 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. 3 - 2
1 of 19
www.diodes.com
May 2012
© Diodes Incorporated
AP7365
600mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
Typical Application Circuit
V
IN
IN
OUT
V
OUT
V
IN
IN
OUT
V
OUT
AP7365
1uF
Enable
EN
GND
ADJ
R1
1uF
AP7365
1uF
Enable
1uF
EN
GND
NEW PRODUCT
R2
Adjustable Output
Fixed Output
⎛
R
⎞
V
OUT
=
V
REF
⎜
1
+
1
⎟
where R
2
≤
80K
Ω
⎜
R
⎟
2
⎠
⎝
Pin Descriptions
Pin Number
Pin
Name
SOT25
(Fixed)
IN
GND
EN
ADJ
NC
OUT
1
2
3
-
4
5
SOT25
(ADJ)
1
2
3
4
-
5
U-DFN2020-6
(Fixed)
3
2
1
-
5, 6
4
U-DFN2020-6
(ADJ)
3
2
1
6
5
4
SOT89-3
SOT223
3
2
-
-
-
1
SOT89-3R
SOT223R
2
1
-
-
-
3
SOT223V
Functions
Voltage Input Pin. Bypass to
3
1
-
-
-
2
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.
AP7365
Document number: DS32260 Rev. 3 - 2
2 of 19
www.diodes.com
May 2012
© Diodes Incorporated
AP7365
600mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
Functional Block Diagram
IN
Current Limit
and Thermal
Shutdown
OUT
IN
Current Limit
and Thermal
Shutdown
OUT
NEW PRODUCT
EN
Gate
Driver
EN
R
Gate
Driver
ADJ
0.8V
R
0.8V
GND
GND
Fixed Version
Adjustable Version
Absolute Maximum Ratings
Symbol
ESD HBM
ESD MM
V
IN
Parameter
Human Body Model ESD Protection
Machine Model ESD Protection
Input Voltage
OUT, EN Voltage
Continuous Load Current per Channel
T
ST
T
J
Storage Temperature Range
Maximum Junction Temperature
Ratings
2000
200
6.5
V
IN
+0.3
Internal Limited
-65 to +150
+150
°C
°C
Unit
V
V
V
V
Recommended Operating Conditions
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.
AP7365
Document number: DS32260 Rev. 3 - 2
3 of 19
www.diodes.com
May 2012
© Diodes Incorporated
AP7365
600mA, LOW QUIESCENT CURRENT, FAST TRANSIENT
LOW DROPOUT LINEAR REGULATOR
Electrical Characteristics
(T
A
= +25°C, V
IN
= V
OUT
+1V, C
IN
= 1μF, C
OUT
= 1μF, V
EN
= 2V, unless otherwise stated)
Symbol
V
REF
I
ADJ
V
OUT
Parameter
ADJ Reference Voltage (Adjustable version)
ADJ Leakage (Adjustable version)
Output Voltage Accuracy
T
A
= -40°C to +85°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
,
I
SHORT
Short-circuit Current
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
1.4
-1
145
15
SOT25 (Note 7)
θ
JA
U-DFN2020-6 (Note 7)
Thermal Resistance Junction-to-Ambient
SOT89-3 (Note 7)
SOT223 (Note 7)
Notes:
Test Conditions
I
OUT
= 0mA
Min
Typ
0.8
0.1
Max
Unit
V
1.0
+2
μA
%
-2
NEW PRODUCT
ΔV
OUT
/ΔV
IN
/V
ΔV
OUT
/V
OUT
Line Regulation
0.02
0.20
%/V
Load Regulation
-1.0
370
300
35
0.1
0.1
200
+1.0
600
400
80
1.0
1.0
%
V
DROPOUT
Dropout Voltage (Note 5)
I
Q
I
SHDN
I
LEAK
t
ST
Input Quiescent Current
Input Shutdown Current
Input Leakage Current
Start-up Time
mV
μA
μA
μA
μs
PSRR
PSRR (Note 6)
65
dB
240
mA
I
LIMIT
V
IL
V
IH
I
EN
T
SHDN
T
HYS
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
0.4
A
V
V
+1
μA
°C
°C
187
251
141
153
o
C/W
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.
7. Test condition for all packages: Device mounted on FR-4 substrate PC board, 1oz copper, with minimum recommended pad layout.
AP7365
Document number: DS32260 Rev. 3 - 2
4 of 19
www.diodes.com
May 2012
© Diodes Incorporated
Analog electronics
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