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
packages.
Pad Assignments
GND
3
V
IN
GND
1
2
1
2
3
5
V
OUT
V
IN
EN
4
NC
V
OUT
SOT25
3
3
4
SOT23
4
1
Top View
2
X2-DFN1010-4
2
1
Bottom View
Pin 1 – V
OUT
, Pin 2 – GND, Pin 3 – EN, Pin 4 – V
IN
Features
•
•
•
•
•
•
•
•
Wide V
IN
Range: 2.0V to 5.5V
Guarantee Output Current: 150mA
Output Voltage Range: 1.2V to 4.5V
V
OUT
Accuracy: ±1%
Quiescent Current as Low as 0.25µA
Output Discharge Available for Devices in SOT25 or DFN1010
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
Totally Lead-Free & and Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Applications
•
•
•
•
•
•
Wearable Electronics
Sensor Module for Internet-of-Things (IoT)
Wireless Communication Module
Battery-Operated Device
Camera
Image Sensor
•
•
•
Typical Applications Circuit
(Note 4)
V
IN
V
IN
V
OUT
AP7354
V
OUT
C
IN
0.1uF
EN
C
OUT
0.1uF
GND
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.
AP7354
Document number: DS39918 Rev 3- 2
1 of 18
www.diodes.com
November 2018
© Diodes Incorporated
AP7354
Pad Description
Pin Number
SOT25
3
2
5
1
—
Pin Number
SOT23
Not Available
3
2
1
—
Pad Number
X2-DFN1010-4
3
2
1
4
Center Pad
—
Function
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.
Ground
Output Voltage
Power Input
No connect or ground. Note: Chip Ground must be through GND pin.
EN
GND
V
OUT
V
IN
—
Functional Block Diagram
V
IN
-
+
VREF
Current Limit
V
OUT
V
IN
-
+
VREF
Current Limit
V
OUT
EN
GND
EN
GND
AP7354 (Without Discharge)
EN Pin Not Available on SOT23
AP7354D (With Discharge)
AP7354
Document number: DS39918 Rev 3- 2
3 of 18
www.diodes.com
November 2018
© Diodes Incorporated
AP7354
Absolute Maximum Ratings
(Note 5)
Symbol
ESD HBM
ESD MM
V
IN
V
EN
V
OUT
T
A
T
J
T
STG
P
D
Notes:
Parameter
Human Body Model ESD Protection
Machine Model ESD Protection
Input Voltage
Input Voltage at EN pad
Output Voltage to GND
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
Power Dissipation (Note 6)
Rating
4
400
6.0
6.0
-0.3 to V
IN
+0.3
-40 to +85
+125
-55 to +125
315
Unit
kV
V
V
V
V
°C
°C
°C
mW
5. 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
6. This is based on an application temperature of 40°C. Derate 3.75 mW per °C for each degree above 40°C.
Recommended Operating Conditions
Symbol
V
IN
I
OUT
T
A
Input Voltage
Output Current
Operating Ambient Temperature
Parameter
Min
2.0
0
-40
Max
5.5
150
+85
Unit
V
mA
°C
AP7354
Document number: DS39918 Rev 3- 2
4 of 18
www.diodes.com
November 2018
© Diodes Incorporated
AP7354
Electrical Characteristics
(@T
A
= +25°C) V
EN
= V
IN
= V
OUT
+1V (1.5V < V
OUT
≤ 4.5V ), V
EN
= V
IN
= 2.5V (V
OUT
≤ 1.5V), I
OUT
= 1mA,
C
IN
= C
OUT
= 0.1µF, unless otherwise specified.)
Parameter
Input Voltage
Conditions
T
A
= -40°C to +85°C
V
OUT
> 2.0V
I
OUT
= 1mA
Output Voltage Accuracy
V
OUT
≤ 2.0V
I
OUT
= 1mA
Line Regulation (∆V
OUT
/∆V
IN
/V
OUT
)
T
A
= +25°C
T
A
= -40°C to +85°C
-40
-80
—
-40
-55
—
—
—
150
V
OUT
= 1.2V
V
OUT
= 1.5V
V
OUT
= 1.8V
V
OUT
=1.85V
Dropout Voltage (Note 9)
I
OUT
= 150mA
V
OUT
= 2.2V
V
OUT
= 2.5V
V
OUT
= 2.8V
V
OUT
= 3.0V
V
OUT
= 3.3V
V
OUT
= 4.5V
EN Input Low Voltage
EN Input High Voltage
—
—
—
—
—
—
—
—
—
—
—
—
—
1.0
—
SOT23 Package
SOT25 Package
X2-DFN1010-4
SOT23 Package
ϴ
JC
Thermal Resistance Junction-to-Case
Note 11
SOT25 Package
X2-DFN1010-4
Notes:
Min
2.0
Typ
—
—
—
—
—
Max
5.5
+1
Unit
V
%
T
A
= +25°C
T
A
= -40°C to +85°C
-1
-2
+2
40
mV
80
0.1
40
55
—
0.6
0.2
—
0.90
0.75
0.60
0.58
0.52
V
0.48
0.40
0.35
0.35
0.35
0.4
5.5
—
—
—
—
—
—
—
°C/W
V
V
Ω
°C/W
%/V
mV
mV
mA
µA
µA
mA
MAX (V
OUT
+ 1.0V, 2.5V) ≤ V
IN
≤ 5.5V
(All Versions Except 4.5V)
1mA ≤ I
OUT
≤ 150mA (All Versions Except 4.5V)
1mA ≤ I
OUT
≤ 150mA (Applicable to 4.5V Version)
V
OUT
= 0V
I
OUT
= 0 mA
Set EN Low, No Load
—
0.02
—
—
60
0.25
0.02
—
0.60
0.43
0.33
0.32
0.27
0.22
0.19
0.18
0.16
0.14
—
—
35
170
162
295
43
38
120
Load Regulation (∆V
OUT)
Short Circuit Current Limit (Note 7)
Quiescent Current (Note 8)
I
STANDBY
Output Current
Active Output Discharge Resistance (Note 10) V
IN
= 4.0V, V
EN
= 0V
ϴ
JA
Thermal Resistance Junction-to-Ambient Note 11
—
—
—
—
—
—
7. Short-circuit current is measured with V
OUT
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
Document number: DS39918 Rev 3- 2
5 of 18
www.diodes.com
November 2018
© Diodes Incorporated
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