AP7354
Document number: DS39918 Rev. 5 - 2
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AP7354
150mA ULTRA-LOW QUIESCENT CURRENT LDO WITH ENABLE
Description
The AP7354 is a low dropout regulator with high output voltage
accuracy. The AP7354 includes a voltage reference, error amplifier,
current limit circuit, and an enable input to turn it on/off. With the
integrated resistor network, fixed output voltage versions can be
delivered.
With its ultra-low quiescent current, the AP7354 is well-suited for low-
power handheld, wearable devices, and other battery-operated
devices requiring an extended time period until new battery
replacement.
The AP7354 is available in SOT23, SOT25, and X2-DFN1010-4
(Type B) packages.
Features
Wide VIN Range: 2.0V to 5.5V
Guarantee Output Current: 150mA
Output Voltage Range: 1.1V to 4.5V
VOUT Accuracy: ±1%
Quiescent Current as Low as 0.25µA
Output Discharge Available for Devices in SOT25 or X2-
DFN1010-4 (Type B)
Typical Standby Current: 0.02µA
ESD Protection Exceeds JESD 22
Exceeds 4000V Human Body Model (A114)
Exceeds 400V Machine Model (A115)
Latch-Up Exceeds 400mA per JESD 78, Class I
Moisture Sensitivity: Level 1 per J-STD-020
Terminals:
SOT23/SOT25: Finish - Mate Tin Plated Leads, Solderable
per MIL-STD-202, Method 208
X2-DFN1010-4 (Type B): Finish - NiPdAu over Copper
Leads, Solderable per MIL-STD-202, Method 208
Weight:
SOT23: 0.009 grams (Approximate)
SOT25: 0.016 grams (Approximate)
X2-DFN1010-4 (Type B): 0.001 grams (Approximate)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
For automotive applications requiring specific change control
(i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and
manufactured in IATF 16949 certified facilities), please
contact us or your local Diodes representative.
https://www.diodes.com/quality/product-definitions/
Pin Assignments
1
2
3
5
4
12
3
VIN
VIN VOUT
VOUT
GND
GND
EN NC
SOT23 SOT25
12
3 434
1 2
Top View X2-DFN1010-4 Bottom View
Pin 1 – VOUT, Pin 2 – GND, Pin 3 – EN, Pin 4 – VIN
Applications
Wearable Electronics
Sensor Module for Internet-of-Things (IoT)
Wireless Communication Module
Battery-Operated Device
Camera
Image Sensor
Typical Applications Circuit (Note 4)
AP7354
VIN
EN GND
VOUT
VIN VOUT
CIN
0.1µF
COUT
0.1µF
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.
4. X5R- and X7R-type capacitors are suggested due to their minimal variation in value and ESR over temperature.
(Top View)
(Top View)
X2-DFN1010-4 (Type B)
(Top View)
(Bottom View)
AP7354
Document number: DS39918 Rev. 5 - 2
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AP7354
Pin Description
Pin Number
Pin Name
Function
SOT25
SOT23
X2-DFN1010-4
(Type B)
3
—
3
EN
Chip Enable — This should be driven either high or low and must not be floating.
Driving EN high enables regulator output, while pulling it low places regulator into
shutdown mode.
2
3
2
GND
Ground
5
2
1
VOUT
Output Voltage
1
1
4
VIN
Power Input
—
—
Center Pad
—
No connection or ground. Note: Chip Ground must be through GND pin.
Functional Block Diagram
VIN
EN GND
VOUT
Current Limit
VREF
-
+
VIN
EN GND
VOUT
Current Limit
VREF
-
+
AP7354 (Without Discharge)
AP7354D (With Discharge)
EN Pin Not Available on SOT23
AP7354
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AP7354
Absolute Maximum Ratings (Note 5)
Symbol
Parameter
Rating
Unit
ESD HBM
Human Body Model ESD Protection
4
kV
ESD MM
Machine Model ESD Protection
400
V
VIN
Input Voltage
6.0
V
VEN
Input Voltage at EN Pin
6.0
V
VOUT
Output Voltage to GND
-0.3 to VIN +0.3
V
TA
Operating Ambient Temperature
-40 to +85
°C
TJ
Maximum Junction Temperature
+125
°C
TSTG
Storage Temperature
-55 to +125
°C
PD
Power Dissipation (Note 6)
315
mW
Notes: 5. Stresses beyond those listed under Absolute Maximum Ratings can 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 can affect
device reliability.
6. This is based on an application temperature of +40°C. Derate 3.75mW per °C for each degree above +40°C.
Recommended Operating Conditions
Symbol
Parameter
Min
Max
Unit
VIN
Input Voltage
2.0
5.5
V
IOUT
Output Current
0
150
mA
TA
Operating Ambient Temperature
-40
+85
°C
AP7354
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AP7354
Electrical Characteristics (@TA = +25°C, VEN = VIN = VOUT+1V (1.5V < VOUT ≤ 4.5V), VEN = VIN = 2.5V (VOUT ≤ 1.5V), IOUT = 1mA,
CIN = COUT = 0.1µF, unless otherwise specified.)
Parameter
Conditions
Min
Typ
Max
Unit
Input Voltage
TA = -40°C to +85°C
2.0
—
5.5
V
Output Voltage Accuracy
VOUT > 2.0V
IOUT = 1mA
TA = +25°C
-1
—
+1
%
TA = -40°C to +85°C
-2
—
+2
VOUT ≤ 2.0V
IOUT = 1mA
TA = +25°C
-40
—
40
mV
TA = -40°C to +85°C
-80
—
80
Line Regulation (∆VOUT/∆VIN/VOUT)
MAX (VOUT + 1.0V, 2.5V) ≤ VIN ≤ 5.5V
(All Versions Except 4.5V)
—
0.02
0.1
%/V
Load Regulation (∆VOUT)
1mA ≤ IOUT ≤ 150mA (All Versions Except 4.5V)
-40
—
40
mV
1mA ≤ IOUT ≤ 150mA (Applicable to 4.5V Version)
-55
—
55
mV
Short Circuit Current Limit (Note 7)
VOUT = 0V
—
60
—
mA
Quiescent Current (Note 8)
IOUT = 0mA
—
0.25
0.6
µA
ISTANDBY
Set EN Low, No Load
—
0.02
0.2
µA
Output Current
—
150
—
—
mA
Dropout Voltage (Note 9)
IOUT = 150mA
VOUT = 1.1V
—
0.70
1.00
V
VOUT = 1.2V
—
0.60
0.90
VOUT = 1.5V
—
0.43
0.75
VOUT = 1.8V
—
0.33
0.60
VOUT = 1.85V
—
0.32
0.58
VOUT = 2.2V
—
0.27
0.52
VOUT = 2.5V
—
0.22
0.48
VOUT = 2.8V
—
0.19
0.40
VOUT = 3.0V
—
0.18
0.35
VOUT = 3.3V
—
0.16
0.35
VOUT = 4.5V
—
0.14
0.35
EN Input Low Voltage
—
—
—
0.4
V
EN Input High Voltage
—
1.0
—
5.5
V
Active Output Discharge Resistance (Note 10)
VIN = 4.0V, VEN = 0V
—
35
—
Ω
ϴJA Thermal Resistance Junction-to-Ambient
(Note 11)
SOT23
—
170
—
°C/W
SOT25
—
162
—
X2-DFN1010-4 (Type B)
—
295
—
ϴJC Thermal Resistance Junction-to-Case
(Note 11)
SOT23
—
43
—
°C/W
SOT25
—
38
—
X2-DFN1010-4 (Type B)
—
120
—
Notes: 7. Short-circuit current is measured with VOUT pulled to GND.
8. Quiescent current defined as the difference in current between the input and the output.
9. Dropout voltage is the voltage difference between the input and the output at which the output voltage drops 2% below its nominal value.
10. AP7354 is available with two options: built-in discharge (AP7354D) and non-discharge (AP7354).
11. Test condition: Device mounted on 1" × 1" FR-4 MRP substrate PCB, 2oz copper, with minimum recommended pad layout.
AP7354
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AP7354
Performance Characteristics
VIN=2.5V
VIN=3.5V
VIN=5.25V
Ground Current (µA)
Ground Current (µA)
VIN=4.3V
VIN=5V
VIN=5.25V
VOUT=1.2V
VOUT=3.3V
IOUT=1mA
IOUT=30mA
IOUT=50mA
IOUT=1mA
IOUT=30mA
IOUT=50mA
AP7354
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AP7354
Performance Characteristics (continued)
Load Transient Response (CIN = COUT = 0.1µF, tR = tF = 5.0µs, unless otherwise specified.)
VIN = 3.3V, VOUT = 1.2V, IOUT = 1mA to 50mA
VIN = 3.3V, VOUT = 1.2V, IOUT = 50mA to 100mA
VIN = 4.3V, VOUT = 3.3V, IOUT = 1mA to 50mA
VIN = 4.3V, VOUT = 3.3V, IOUT = 50mA to 100mA
AP7354
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AP7354
Performance Characteristics (continued)
TURN ON
TURN OFF
VIN = 3.3V, VOUT = 1.2V, IOUT = 0mA, CIN = COUT = 0.1µF
VIN = 3.3V, VOUT = 1.2V, IOUT = 0mA, CIN = COUT = 0.1µF
VIN = 3.3V, VOUT = 1.2V, IOUT = 150mA, CIN = COUT = 0.1µF
VIN = 3.3V, VOUT = 1.2V, IOUT = 150mA, CIN = COUT = 0.1µF
VIN = 4.3V, VOUT = 3.3V, IOUT = 0mA, CIN = COUT = 0.1µF
VIN = 4.3V, VOUT = 3.3V, IOUT = 0mA, CIN = COUT = 0.1µF
AP7354
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AP7354
Application Information
Output Capacitor
An output capacitor (COUT) is required to improve transient response and maintain stability. The AP7354 is stable with very small ceramic output
capacitors. The equivalent series resistance (ESR) and capacitance drive the selection. If the application has large load variations, it is
recommended to utilize low-ESR bulk capacitors. It is recommended to place ceramic capacitors as close as possible to the load and the GND pin.
Care must be taken to reduce the impedance in the layout.
Input Capacitor
To prevent the input voltage from dropping during load steps, it is recommended to utilize an input capacitor (CIN). A minimum 0.1μF ceramic
capacitor is recommended between VIN and GND pin to decouple input power supply glitch. This input capacitor must be located as close as
possible to the device to assure input stability and reduce noise. For PCB layout, a wide copper trace is required for both VIN and GND pin.
Enable Control
The AP7354 is turned on by setting the EN pin high, and is turned off by pulling them low. If this feature is not used, the EN pin should be tied to
VIN pin to keep the regulator output on at all time. To ensure proper operation, the signal source used to drive the EN pin must be able to swing
above and below the specified turn-on/off voltage thresholds listed in the Electrical Characteristics section.
Layout Considerations
For good ground loop and stability, the input and output capacitors must be located close to the input, output, and GND pin of the device. The
regulator GND pin must be connected to the external circuit ground to reduce voltage drop caused by trace impedance. Ground plane is generally
used to reduce trace impedance. Wide trace must be used for large current paths from VIN to VOUT and load circuit.
ESR vs. Output Current
A ceramic type output capacitor is recommended for this series; however, the other output capacitors with low ESR also can be used. The
relations between IOUT (output current) and ESR of an output capacitor are shown below. The stable region is marked as the hatched area in the
graph.
Measurement Conditions:
Frequency Band: 10Hz to 2MHz
Temperature: -40°C to +85°C
AP7354
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AP7354
Ordering Information (Note 12)
AP7354X - XXX XXX - X
PackageOutput Discharge Packing
SA : SOT23
W5 : SOT25
FS4 : X2-DFN1010-4
(Type B)
7 : Tape & Reel
11 : 1.1VBlank : Non-discharge
D : Output Discharge
Output Voltage
12 : 1.2V
15 : 1.5V
30 : 3.0V
18 : 1.8V
25 : 2.5V
28 : 2.8V
33 : 3.3V
185 : 1.85V
22 : 2.2V
45 : 4.5V
Output Voltage
SOT23
SOT25
Without Discharge
SOT25
With Discharge
7” Tape and Reel
Quantity
Part Number Suffix
1.2
AP7354-12SA-7
AP7354-12W5-7
AP7354D-12W5-7
3000/Tape & Reel
-7
1.5
AP7354-15SA-7
AP7354-15W5-7
AP7354D-15W5-7
3000/Tape & Reel
-7
1.8
AP7354-18SA-7
AP7354-18W5-7
AP7354D-18W5-7
3000/Tape & Reel
-7
1.85
AP7354-185SA-7
AP7354-185W5-7
AP7354D-185W5-7
3000/Tape & Reel
-7
2.2
AP7354-22SA-7
—
—
3000/Tape & Reel
-7
2.5
AP7354-25SA-7
AP7354-25W5-7
AP7354D-25W5-7
3000/Tape & Reel
-7
2.8
AP7354-28SA-7
AP7354-28W5-7
AP7354D-28W5-7
3000/Tape & Reel
-7
3.0
AP7354-30SA-7
AP7354-30W5-7
AP7354D-30W5-7
3000/Tape & Reel
-7
3.3
AP7354-33SA-7
AP7354-33W5-7
AP7354D-33W5-7
3000/Tape & Reel
-7
4.5
AP7354-45SA-7
AP7354-45W5-7
AP7354D-45W5-7
3000/Tape & Reel
-7
Output
Voltage
X2-DFN1010-4 (Type B)
Without Discharge
X2-DFN1010-4 (Type B)
With Discharge
7” Tape and Reel
Quantity
Part Number Suffix
1.1
AP7354-11FS4-7
AP7354D-11FS4-7
5000/Tape & Reel
-7
1.2
AP7354-12FS4-7
AP7354D-12FS4-7
5000/Tape & Reel
-7
1.5
AP7354-15FS4-7
AP7354D-15FS4-7
5000/Tape & Reel
-7
1.8
AP7354-18FS4-7
AP7354D-18FS4-7
5000/Tape & Reel
-7
1.85
AP7354-185FS4-7
AP7354D-185FS4-7
5000/Tape & Reel
-7
2.5
AP7354-25FS4-7
AP7354D-25FS4-7
5000/Tape & Reel
-7
2.8
AP7354-28FS4-7
AP7354D-28FS4-7
5000/Tape & Reel
-7
3.0
AP7354-30FS4-7
AP7354D-30FS4-7
5000/Tape & Reel
-7
3.3
AP7354-33FS4-7
AP7354D-33FS4-7
5000/Tape & Reel
-7
4.5
AP7354-45FS4-7
AP7354D-45FS4-7
5000/Tape & Reel
-7
Note: 12. For packaging details, go to our website at https://www.diodes.com/design/support/packaging/diodes-packaging/.
AP7354
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AP7354
Marking Information
(1) SOT23
(Top View)
XXX : Identification Code
W : Week : A to Z : 1 to 26 week;
X : Internal Code
Y : Year 0 to 9
a to z : 27 to 52 week; z represents
52 and 53 week
1 2
3
XXX
Y W X
Part Number
Package
Identification Code
AP7354-12SA-7
SOT23
A8A
AP7354-15SA-7
SOT23
A8B
AP7354-18SA-7
SOT23
A8C
AP7354-185SA-7
SOT23
A8D
AP7354-22SA-7
SOT23
A8K
AP7354-25SA-7
SOT23
A8E
AP7354-28SA-7
SOT23
A8F
AP7354-30SA-7
SOT23
A8G
AP7354-33SA-7
SOT23
A8H
AP7354-45SA-7
SOT23
A8J
AP7354
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AP7354
Marking Information (continued)
(2) SOT25
1 2 3
5
7
4
(Top View)
XXX : Identification Code
W : Week : A to Z : 1 to 26 week;
X : Internal Code
Y : Year 0 to 9
a to z : 27 to 52 week; z represents
52 and 53 week
XXX
Y W X
Part Number
Package
Identification Code
AP7354-12W5-7
SOT25
A8A
AP7354-15W5-7
SOT25
A8B
AP7354-18W5-7
SOT25
A8C
AP7354-185W5-7
SOT25
A8D
AP7354-25W5-7
SOT25
A8E
AP7354-28W5-7
SOT25
A8F
AP7354-30W5-7
SOT25
A8G
AP7354-33W5-7
SOT25
A8H
AP7354-45W5-7
SOT25
A8J
AP7354D-12W5-7
SOT25
A9A
AP7354D-15W5-7
SOT25
A9B
AP7354D-18W5-7
SOT25
A9C
AP7354D-185W5-7
SOT25
A9D
AP7354D-25W5-7
SOT25
A9E
AP7354D-28W5-7
SOT25
A9F
AP7354D-30W5-7
SOT25
A9G
AP7354D-33W5-7
SOT25
A9H
AP7354D-45W5-7
SOT25
A9J
AP7354
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AP7354
Marking Information (continued)
(3) X2-DFN1010-4 (Type B)
(Top View)
XXX Y : Year : 0~9
X : Internal Code
XXX : Identification Code
W : Week : A~Z : 1~26 week;
a~z : 27~52 week; z represents
52 and 53 week
Y W X
Part Number
VOUT
Package
Identification Code
AP7354-11FS4-7
1.1V
X2-DFN1010-4 (Type B)
A8M
AP7354-12FS4-7
1.2V
X2-DFN1010-4 (Type B)
A8A
AP7354-15FS4-7
1.5V
X2-DFN1010-4 (Type B)
A8B
AP7354-18FS4-7
1.8V
X2-DFN1010-4 (Type B)
A8C
AP7354-185FS4-7
1.85V
X2-DFN1010-4 (Type B)
A8D
AP7354-25FS4-7
2.5V
X2-DFN1010-4 (Type B)
A8E
AP7354-28FS4-7
2.8V
X2-DFN1010-4 (Type B)
A8F
AP7354-30FS4-7
3.0V
X2-DFN1010-4 (Type B)
A8G
AP7354-33FS4-7
3.3V
X2-DFN1010-4 (Type B)
A8H
AP7354-45FS4-7
4.5V
X2-DFN1010-4 (Type B)
A8J
AP7354D-11FS4-7
1.1V
X2-DFN1010-4 (Type B)
A9M
AP7354D-12FS4-7
1.2V
X2-DFN1010-4 (Type B)
A9A
AP7354D-15FS4-7
1.5V
X2-DFN1010-4 (Type B)
A9B
AP7354D-18FS4-7
1.8V
X2-DFN1010-4 (Type B)
A9C
AP7354D-185FS4-7
1.85V
X2-DFN1010-4 (Type B)
A9D
AP7354D-25FS4-7
2.5V
X2-DFN1010-4 (Type B)
A9E
AP7354D-28FS4-7
2.8V
X2-DFN1010-4 (Type B)
A9F
AP7354D-30FS4-7
3.0V
X2-DFN1010-4 (Type B)
A9G
AP7354D-33FS4-7
3.3V
X2-DFN1010-4 (Type B)
A9H
AP7354D-45FS4-7
4.5V
X2-DFN1010-4 (Type B)
A9J
AP7354
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AP7354
Package Outline Dimensions
Please see http://www.diodes.com/package-outlines.html for the latest version.
(1) Package Type: SOT23
J
K1 K
L1
GAUGE PLANE
0.25
H
L
M
All 7°
A
CB
D
G
F
a
(2) Package Type: SOT25
SOT25
Dim
Min
Max
Typ
A
0.35
0.50
0.38
B
1.50
1.70
1.60
C
2.70
3.00
2.80
D
-
-
0.95
H
2.90
3.10
3.00
J
0.013
0.10
0.05
K
1.00
1.30
1.10
L
0.35
0.55
0.40
M
0.10
0.20
0.15
N
0.70
0.80
0.75
0°
8°
-
All Dimensions in mm
SOT23
Dim
Min
Max
Typ
A
0.37
0.51
0.40
B
1.20
1.40
1.30
C
2.30
2.50
2.40
D
0.89
1.03
0.915
F
0.45
0.60
0.535
G
1.78
2.05
1.83
H
2.80
3.00
2.90
J
0.013
0.10
0.05
K
0.890
1.00
0.975
K1
0.903
1.10
1.025
L
0.45
0.61
0.55
L1
0.25
0.55
0.40
M
0.085
0.150
0.110
a
0°
8°
--
All Dimensions in mm
A
M
JL
D
B C
H
KN
AP7354
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AP7354
Package Outline Dimensions (continued)
Please see http://www.diodes.com/package-outlines.html for the latest version.
(3) Package Type: X2-DFN1010-4 (Type B)
AA1 A3
Seating Plane
D
E
z(4x) b(4x)
e
L(4x)
L1(4x)
E2 D2
4-C0.18
Pin #1 ID
R
k
Suggested Pad Layout
Please see http://www.diodes.com/package-outlines.html for the latest version.
(1) Package Type: SOT23
X
Y
Y1 C
X1
(2) Package Type: SOT25
X2-DFN1010-4 (Type B)
Dim
Min
Max
Typ
A
-
0.40
0.39
A1
0.00
0.05
0.02
A3
-
-
0.13
b
0.20
0.30
0.25
D
0.95
1.05
1.00
D2
0.43
0.53
0.48
E
0.95
1.05
1.00
E2
0.43
0.53
0.48
e
-
-
0.65
k
0.19
0.29
0.24
L
0.20
0.30
0.25
L1
0.02
0.12
0.07
R
0.02
0.08
0.05
z
-
-
0.050
All Dimensions in mm
Dimensions
Value (in mm)
C
2.0
X
0.8
X1
1.35
Y
0.9
Y1
2.9
Dimensions
Value
Z
3.20
G
1.60
X
0.55
Y
0.80
C1
2.40
C2
0.95
X
Z
Y
C1
C2C2
G
AP7354
Document number: DS39918 Rev. 5 - 2
17 of 18
www.diodes.com
March 2020
© Diodes Incorporated
AP7354
Suggested Pad Layout (continued)
Please see http://www.diodes.com/package-outlines.html for the latest version.
(3) Package Type: X2-DFN1010-4 (Type B)
X2
Y1
Y2
X3
C
X
Y
X1
Dimensions
Value
(in mm)
C
0.650
X
0.350
X1
0.112
X2
0.530
X3
1.00
Y
0.350
Y1
0.530
Y2
1.100
AP7354
Document number: DS39918 Rev. 5 - 2
18 of 18
www.diodes.com
March 2020
© Diodes Incorporated
AP7354
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
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final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2020, Diodes Incorporated
www.diodes.com
