AP7341
300mA HIGH PSRR LOW NOISE LDO WITH ENABLE
Description
The AP7341 is a low dropout regulator with high output voltage
accuracy, low R
DSON
, high PSRR, low output noise and low quiescent
current. This regulator is based on a CMOS process.
Pin Assignments
ADVANCED INFORMATION
The AP7341 consists of 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.
With its low power consumption and line and load transient response,
the AP7341 is well suited for low power handheld communication
equipment. The AP7341 is packaged in an X2-DFN1010-4 package
and allows for smallest footprint and dense PCB layout.
PIN1 – V
OUT
, PIN2 – GND, PIN3 – EN, PIN4 – V
IN
Features
●
●
Low V
IN
and Wide V
IN
Range: 1.7V to 5.25V
Guarantee Output Current: 300mA
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)
Applications
Smart Phone/Pad
RF Supply
Cameras
Portable Video
Portable Media Player
Wireless Adapter
Wireless Communication
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.
Typical Applications Circuit
V
IN
V
IN
V
OUT
AP7341
C
IN
1.0mF
V
OUT
C
OUT
1.0mF
EN
GND
Figure 1 Typical Application Circuit
AP7341
Document number: DS36523 Rev. 5 - 2
1 of 15
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June 2017
© Diodes Incorporated
AP7341
Functional Block Diagram
ADVANCED INFORMATION
V
IN
V
OUT
VREF
Current Limit
EN
GND
Pin Descriptions
Pin Number
1
2
3
4
—
Pin Name
V
OUT
GND
EN
V
IN
Thermal Pad
Power Output Pin
Ground
Enable Pin
This pin should be driven either high or low and must not be floating. Driving this pin high
enables the regulator, while pulling it low puts the regulator into shutdown mode
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
Function
Absolute Maximum Ratings
(Note 4) (@T
A
= +25° unless otherwise specified.)
C,
Symbol
V
IN
V
CE
V
OUT
I
OUT
P
D
T
A
T
STG
Note:
Parameter
Input Voltage
Input Voltage EN
Output Voltage
Output Current
Power Dissipation
Operating Ambient Temperature
Storage Temperature
Ratings
6.0
6.0
-0.3 to V
IN
+0.3
400
400
-40 to +85
-55 to +125
Unit
V
V
V
mA
mW
°
C
°
C
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 was a 2in. x 2in. multilayer board with 1oz
C.
internal power and ground planes and 2oz copper traces on the top and bottom of the board.
AP7341
Document number: DS36523 Rev. 5 - 2
2 of 15
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June 2017
© Diodes Incorporated
AP7341
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
300
+85
Unit
V
mA
°
C
ADVANCED INFORMATION
Electrical Characteristics
Parameter
Input Voltage
Output Voltage Accuracy (Note 11)
(@T
A
= +25° V
IN
=V
EN
= V
OUT
+1.0V, C
IN
= C
OUT
= 1.0µF, I
OUT
= 1.0mA, unless otherwise specified.)
C,
Conditions
Min
1.7
T
A
= +25°
C
T
A
= -40° to +85°
C
C
-1
-1.5
—
—
—
—
300
—
f = 1kHz
—
—
1.1V ≤ V
OUT
< 1.5V
1.5V ≤ V
OUT
< 1.7V
1.7V ≤ V
OUT
< 2.0V
2.0V ≤ V
OUT
< 2.5V
2.5V ≤ V
OUT
< 2.8V
2.8V ≤ V
OUT
≤ 3.3V
V
OUT
= 1.8V
—
—
—
—
—
—
—
—
—
—
0
1.3
-1.0
—
Typ
—
—
—
0.02
15
35
0.01
—
55
75
60
0.50
0.38
0.34
0.28
0.22
0.21
0.50
0.37
0.30
±30
—
—
—
30
Max
5.25
1
+1.5
0.1
30
50
1.0
—
—
—
—
0.62
0.47
0.42
0.36
0.30
0.27
0.65
0.48
0.40
—
0.5
5.25
+1.0
—
ppm/°
C
V
V
µA
Ω
V
%
Unit
V
T
A
= -40° to +85°
C
C
V
IN
= V
OUT-Nom
+1.0V to 5.25V,
I
OUT
= 1mA to 300mA
Line Regulation (dV
OUT
/dV
IN
/V
OUT
)
Load Regulation (dV
OUT
/V
OUT
)
Quiescent Current (Note 6)
I
STANDBY
Output Current
Fold-back Short Current (Note 7)
PSRR (Note 8)
Output Noise Voltage (Notes 8 & 9)
V
IN
= (V
OUT-Nom
+1.0V) to 5.25V, I
OUT
= 1.0mA
V
IN
= V
OUT-Nom
+1.0V, I
OUT
= 1mA to 300mA
I
OUT
= 0mA
V
EN
= 0V (Disabled)
—
V
OUT
Short to Ground
V
IN
= [V
OUT
+1V] VDC +0.2Vp-pAC,
V
OUT
≥ 1.8V,
I
OUT
= 30mA
BW = 10Hz to 100kHz, I
OUT
= 30mA
%/V
mV
µA
µA
mA
mA
dB
µVrms
I
OUT
= 150mA
Dropout Voltage
(Note 5)
I
OUT
= 300mA
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:
V
OUT
= 2.5V
V
OUT
= 3.3V
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)
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 VOUT pulled to GND.
8. This specification is guaranteed by design.
9. To make sure lowest environment noise minimizes the influence on noise measurement.
10. AP7341 has 2 options for output, built-in discharge and non-discharge.
11. Potential multiple grades based on following output voltage accuracy.
AP7341
Document number: DS36523 Rev. 5 - 2
3 of 15
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June 2017
© Diodes Incorporated
AP7341
Typical Characteristics
2.1
Output Voltage vs. Output Current
AP7341-18
Output Voltage V OUT (V)
3.0
Output Voltage vs. Output Current
AP7341-25
ADVANCED INFORMATION
Output Voltage V OUT (V)
1.8
1.5
1.2
0.9
0.6
0.3
0.0
0
100
200
300
400
Output Current I OUT (mA)
500
V
IN
=2.8
V
V
IN
=3.6
V
V
IN
=4.2
V
V
IN
=5V
V
IN
=5.5
V
2.5
2.0
1.5
V
IN
=3.5V
V
IN
=4.2V
V
IN
=5V
V
IN
=5.5V
1.0
0.5
0.0
0
100
200
300
400
Output Current I OUT (mA)
500
3.5
Output Voltage V OUT (V)
3.0
2.5
2.0
1.5
Output Voltage vs. Output Current
AP7341-33
Output Noise (AP7341-33)
V
IN
=4.3V
V
IN
=5V
V
IN
=5.5V
1.0
0.5
0.0
0
100
200
300
400
Output Current I OUT (mA)
500
3.5
Output Voltage V OUT (V)
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
AP7341
Output Voltage vs. Intput Voltage
AP7341-25
Output Voltage V OUT (V)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
5
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Output Voltage vs. Intput Voltage
AP7341-33
I
OUT
=1mA
I
OUT
=30mA
I
OUT
=50mA
I
OUT
=1mA
I
OUT
=30mA
I
OUT
=50mA
1
2
3
Input Voltage V IN (V)
4
0
1
2
3
Input Voltage V IN (V)
4
5
June 2017
Document number: DS36523 Rev. 5 - 2
© Diodes Incorporated
AP7341
Typical Characteristics
(Cont.)
50
Supply Current vs. Input Voltage
AP7341-25
Supply Current I SS (μA)
50
40
30
20
10
0
Supply Current vs. Input Voltage
AP7341-33
Supply Current I SS (μA)
ADVANCED INFORMATION
40
30
20
10
0
0
1
2
3
4
Input Voltage V IN (V)
5
0
1
2
3
Input Voltage V IN (V)
4
5
40
Supply Current I ss (µA)
38
36
34
32
30
-50
Supply Current vs. Temperature
AP7341-25
Supply Current I ss (µA)
40
38
36
34
32
30
Supply Current vs. Temperature
AP7341-33
-25
0
25
50
75
Temperature Topt (℃)
100
-50
-25
0
25
50
75
Temperature Topt (℃)
100
2.55
2.54
2.53
2.52
2.51
2.50
2.49
2.48
2.47
2.46
2.45
-50
Output Voltage vs. Temperature
AP7341-25
Output Voltage V OUT (V)
3.35
3.34
3.33
3.32
3.31
3.30
3.29
3.28
3.27
3.26
3.25
-50
Output Voltage vs. Temperature
AP7341-33
Output Voltage V OUT (V)
-25
0
25
50
75
Temperature Topt (℃)
100
-25
0
25
50
75
Temperature Topt (℃)
100
AP7341
Document number: DS36523 Rev. 5 - 2
5 of 15
www.diodes.com
June 2017
© Diodes Incorporated
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