AP7315
150mA HIGH PSRR LOW NOISE LDO WITH ENABLE
Description
The AP7315 is a low dropout regulator with high output voltage
accuracy, low R
DS(ON)
, high PSRR, low output noise and low
quiescent current. This regulator is based on a CMOS process.
The AP7315 includes a voltage reference, error amplifier, current limit
circuit and an enable input to turn it on and off. With the integrated
resistor network fixed output voltage versions can be delivered.
Pin Assignments
NEW PRODUCT
With its low power consumption and line and load transient response,
the AP7315 is well suited for low power handheld communication
equipment.
The AP7315 is packaged in X2-DFN1010-4, SOT23 and SOT25
packages and allows for smallest footprint and dense PCB layout.
Pin 1 – V
OUT
, Pin 2 – GND, Pin 3 – EN, Pin 4 – V
IN
(Top View)
(Top View)
V
IN
3
Features
Low V
IN
and Wide V
IN
Range: 1.7V to 5.25V
Guarantee Output Current,150mA
V
OUT
Accuracy ±1%
Ripple Rejection 75dB at 1kHz
Low Output Noise, 60µVrms from 10Hz to 100kHz
Quiescent Current as Low as 35µA
V
OUT
Fixed 1.1V to 3.3V
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free, Green Device (Note 3)
GND
3
1
V
IN
2
V
OUT
1
GND
2
V
OUT
SOT23 (SA)
(Top View)
SOT23 (SR)
Applications
Smart Phone/PAD
RF Supply
Cameras
Portable Video
Portable Media Player
Wireless Adapter
Wireless Communication
V
OUT
5
NC
4
1
V
IN
2
3
GND EN/NC
SOT25
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.
AP7315
Document number: DS38352 Rev. 1 - 2
1 of 23
www.diodes.com
December 2015
© Diodes Incorporated
AP7315
Typical Applications Circuit
V
IN
V
IN
C
IN
CIN
0.47µF
0.47uF
V
OUT
V
OUT
AP7315
EN
GND
COUT
C
OUT
0.47uF
0.47µF
NEW PRODUCT
Pin Descriptions
Pin
Name
V
OUT
GND
EN
V
IN
—
EN/NC
NC
Pin Number
X2-
DFN1010-4
1
2
3
4
Thermal
PAD
—
—
SOT25
5
2
—
1
—
3
4
SOT23 (SA) SOT23 (SR)
2
3
—
1
—
—
—
2
1
—
3
—
—
—
Power output pin
Ground
Enable pin. Active high
Power input pin
In PCB layout, prefer to use large copper area to cover this pad for better thermal
dissipation, then connect this area to GND or leave it open. However, do not use it
as GND electrode function alone.
Enable pin. Active high/ NC, No connection
No connection
Function
Functional Block Diagram
V
IN
-
+
VREF
Current Limit
V
OUT
V
IN
-
+
VREF
Current Limit
V
OUT
EN
GND
EN
GND
AP7315 (Non Discharge)
AP7315D (With Discharge)
AP7315
Document number: DS38352 Rev. 1 - 2
2 of 23
www.diodes.com
December 2015
© Diodes Incorporated
AP7315
Absolute Maximum Ratings
(Note 4) (@T
A
= +25° unless otherwise specified.)
C,
Symbol
V
IN
V
EN
V
OUT
I
OUT
P
D
Input Voltage
Input Voltage EN
Output Voltage
Output Current
Power Dissipation
Operating Ambient Temperature
Storage Temperature
Parameter
Ratings
6.0
6.0
-0.3 to V
IN
+0.3
300
400
-40 to +85
-55 to +125
Unit
V
V
V
mA
mW
°
C
°
C
NEW PRODUCT
T
A
T
STG
Note:
4. a). Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and
functional operation of the device at these conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect
device reliability.
b). Ratings apply to ambient temperature at +25° The JEDEC High-K board design used to derive this data is a 2in. x 2in. multi-layer board with 1oz.
C.
internal power and ground planes and 2oz. copper traces on the top and bottom of the board.
Recommended Operating Conditions
(@T
A
= +25° unless otherwise specified.)
C,
Symbol
V
IN
I
OUT
T
A
Input Voltage
Output Current
Operating Ambient Temperature
Parameter
Min
1.7
0
-40
Max
5.25
150
+85
Unit
V
mA
°
C
AP7315
Document number: DS38352 Rev. 1 - 2
3 of 23
www.diodes.com
December 2015
© Diodes Incorporated
AP7315
Electrical Characteristics
Parameter
Input Voltage
T
A
= -40° to +85°
C
C
V
OUT
≥ 2.0V, V
IN
= V
OUT
+1V, T
A
= +25°
C
Output Voltage Accuracy (Note 11)
V
OUT
< 2.0V, V
IN
= V
OUT
+1V, T
A
= +25°
C
(V
EN
= V
IN
= V
OUT
+1.0V, C
IN
= C
OUT
=
0.47µF, I
OUT
= 1.0mA @T
A
= +25° unless otherwise specified.)
C,
Conditions
Min
1.7
V
OUT
*0.99
V
OUT
-
20mV
—
—
20
30
—
150
—
—
—
1.1V ≤ V
OUT
< 1.5V
1.5V ≤ V
OUT
< 1.7V
Dropout Voltage
(Note 5)
I
OUT
= 150mA
1.7V ≤ V
OUT
< 2.0V
2.0V ≤ V
OUT
< 2.5V
2.5V ≤ V
OUT
< 2.8V
2.8V ≤ V
OUT
≤ 3.3V
Output Voltage Temperature
Coefficient
EN Input Low Voltage
EN Input High Voltage
EN Input Leakage
On Resistance of N-channel for
Auto-Discharge (Note 10)
Notes:
Typ
—
V
OUT
V
OUT
Max
5.25
V
OUT
*1.01
V
OUT
+
20mV
0.1
Units
V
V
V
NEW PRODUCT
Line Regulation (dV
OUT
/dV
IN
/V
OUT
) V
IN
= (V
OUT – Nom
+ 1.0V) to 5.25V, I
OUT
= 1.0mA
Load Regulation
(dV
OUT
/V
OUT
/dI
OUT
)
Quiescent Current
(Note 6)
I
STANDBY
Output Current
Fold-back Short Current (Note 7)
V
IN
= V
OUT
-
Nom
+ 1.0V, I
OUT
= 1mA to 150mA
I
OUT
= 0mA
I
OUT
= 150mA
V
EN
= 0V (Disabled)
—
V
OUT
Short to Ground
V
IN
= (V
OUT
+1V)V
DC
+ 0.2Vp-pAC,
V
OUT
≥ 1.8V,
I
OUT
= 30mA
BW = 10Hz to 100kHz, I
OUT
= 30mA
f = 1kHz
0.02
%/V
0.5
35
60
0.01
—
55
1.0
60
100
1.0
—
—
—
—
0.64
0.49
0.44
0.38
0.32
0.29
—
0.5
5.25
+1.0
—
%/A
μA
μA
mA
mA
PSRR (Note 8)
75
dB
Output Noise Voltage (Notes 8, 9)
60
0.50
0.38
0.34
0.28
0.22
0.21
±30
—
—
—
30
µVrms
—
—
—
—
—
—
—
0
1.3
-1.0
—
V
I
OUT
= 30mA, T
A
= -40° to +85°
C
C
—
—
V
EN
= 0, V
IN
= 5.0V or V
EN
= 5.0V, V
IN
= 0V
V
IN
= 4.0V V
EN
= 0V (Disabled)
ppm/°
C
V
V
µA
Ω
5. Dropout voltage is the voltage difference between the input and the output at which the output voltage drops 2% below its nominal value.
6. Quiescent current is defined here is the difference in current between the input and the output.
7. Short circuit current is measured with V
OUT
pulled to GND.
8. This specification is guaranteed by design.
9. To make sure lowest environment noise minimizes the influence on noise measurement.
10. AP7315 has 2 options for output, built-in discharge and non-discharge.
11. Potential multiple grades based on following output voltage accuracy.
AP7315
Document number: DS38352 Rev. 1 - 2
4 of 23
www.diodes.com
December 2015
© Diodes Incorporated
AP7315
Typical Characteristics
Output Voltage vs. Output Current
AP7315-18
2.1
3.0
Output Voltage vs. Output Current
AP7315-25
Output Voltage V
OUT
(V)
1.5
1.2
0.9
0.6
0.3
0.0
0
100
V
IN
=2.8V
V
IN
=3.6V
V
IN
=4.2V
V
IN
=5V
V
IN
=5.5V
Output Voltage V
OUT
(V)
1.8
2.5
2.0
1.5
V
IN
=3.5V
V
IN
=4.2V
V
IN
=5V
V
IN
=5.5V
NEW PRODUCT
1.0
0.5
0.0
200
300
400
Output Current I
OUT
(mA)
500
0
100
200
300
400
Output Current I
OUT
(mA)
500
Output Voltage vs. Output Current
AP7315-33
3.5
Output Voltage V
OUT
(V)
Output Noise (AP7315-33)
3.0
2.5
2.0
1.5
1.0
0.5
0.0
V
IN
=4.3V
V
IN
=5V
V
IN
=5.5V
0
100
200
300
400
Output Current I
OUT
(mA)
500
Output Voltage vs. Intput Voltage
AP7315-25
3.5
3.0
2.5
2.0
1.5
1.0
0.5
I
OUT
=1mA
I
OUT
=30mA
I
OUT
=50mA
Output Voltage vs. Intput Voltage
AP7315-33
3.5
3.0
Output Voltage V
OUT
(V)
Output Voltage V
OUT
(V)
2.5
2.0
1.5
1.0
0.5
0.0
I
OUT
=1mA
I
OUT
=30mA
I
OUT
=50mA
0.0
0
1
2
3
Input Voltage V
IN
(V)
4
5
0
1
2
3
Input Voltage V
IN
(V)
4
5
AP7315
Document number: DS38352 Rev. 1 - 2
5 of 23
www.diodes.com
December 2015
© Diodes Incorporated
京公网安备 11010802033920号
EEWORLD
