AP7343Q LDO Datasheet

AP7343Q Datasheet PDF, Equivalent


Part Number

AP7343Q

Description

AUTOMOTIVE COMPLIANT 300mA HIGH PSRR LOW NOISE LDO

Manufacture

Diodes

Total Page 16 Pages
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Download AP7343Q Datasheet PDF


AP7343Q
AP7343Q
AUTOMOTIVE COMPLIANT 300mA HIGH PSRR LOW NOISE LDO WITH ENABLE
Description
The AP7343Q is a low dropout regulator with high output voltage
accuracy, low RDS(ON), high PSRR, low output noise and low
quiescent current. This regulator is based on a CMOS process.
The AP7343Q 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.
With its low power consumption and, line and load transient
responses the AP7343Q is well suited for noise sensitive automotive
applications.
The AP7343Q is packaged in SOT25 package, which allows for the
smallest footprint and dense PCB layout.
Features
Low VIN and Wide VIN Range: 1.7V to 5.25V
-40°C to +125°C Temperature Range
Guarantee Output Current: 300mA
VOUT Accuracy ±1%
Ripple Rejection 75dB at 1kHz
Low Output Noise, 60µVrms from 10Hz to 100kHz
Quiescent Current as Low as 35µA
VOUT Fixed 0.9V to 3.6V
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Qualified to AEC-Q100 Standards for High Reliability
AEC-Q100 Grade 1
PPAP Capable (Note 4)
Pin Assignments
(Top View)
VIN 1
GND 2
EN 3
5 VOUT
4 NC
SOT25
Applications
Infotainment Power Supplies
Automotive RF Supply
Cameras
Automotive POL in ADAS
Automotive Wireless Communication
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. Automotive products are AEC-Q100 qualified and are PPAP capable. Refer to https://www.diodes.com/quality/.
Typical Applications Circuit
VIN
CIN
1μF
VIN VOUT
AP7343Q
EN GND
VOUT
COUT
1μF
AP7343Q
Document number: DS41595 Rev. 2 - 2
1 of 16
www.diodes.com
June 2019
© Diodes Incorporated

AP7343Q
AP7343Q
Pin Descriptions
Pin Number
1
2
Pin Name
VIN
GND
3 EN
4 NC
5 VOUT
Function
Power Input Pin
Ground
Enable Pin
This pin must be driven either high or low and must not be floating.
Driving this pin high enables the regulator, and pulling it low puts the regulator into shutdown mode
No Connection
Power Output Pin
Functional Block Diagram
VIN
VOUT
VIN
VOUT
EN
VREF
Thermal
Shutdown
Current Limit
GND
EN
VREF
Thermal
Shutdown
Current Limit
GND
AP7343DQ (With Discharge)
AP7343Q (Without Discharge)
Absolute Maximum Ratings (Note 5) (@TA = +25°C, unless otherwise specified.)
Symbol
ESD HBM
ESD CDM
Parameter
Human Body Mode ESD Protection
Charge Device Model
Ratings
>2
±500
Unit
kV
V
VIN
VEN
VOUT
IOUT
PD
Input Voltage
Input Voltage for EN Pin
Output Voltage
Output Current
Power Dissipation
6.0
6.0
-0.3 to VIN + 0.3
400
400
V
V
V
mA
mW
Note:
TJ Operating Junction Temperature
-40 to +150
°C
TSTG
Storage Temperature
-55 to +150
°C
5. a). 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 period can affect
device reliability.
b). Ratings apply to ambient temperature at +25°C. The JEDEC High-K board design used to derive this data was a 2 inch × 2 inch multilayer board with
1oz. internal power and ground planes and 2oz. copper traces on the top and bottom of the board.
Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.)
Symbol
VIN
IOUT
TJ
TA
Input Voltage
Output Current
Parameter
Operating Junction Temperature
Operating Ambient Temperature
Min
1.7
0
-40
-40
Max
5.25
300
+125
+125
Unit
V
mA
°C
°C
AP7343Q
Document number: DS41595 Rev. 2 - 2
2 of 16
www.diodes.com
June 2019
© Diodes Incorporated


Features AP7343Q AUTOMOTIVE COMPLIANT 300mA HIGH PSRR LOW NOISE LDO WITH ENABLE Descrip tion The AP7343Q is a low dropout regul ator with high output voltage accuracy, low RDS(ON), high PSRR, low output noi se and low quiescent current. This regu lator is based on a CMOS process. The A P7343Q includes a voltage reference, er ror amplifier, current limit circuit, a nd an enable input to turn it on and of f. With the integrated resistor network fixed output voltage versions can be d elivered. With its low power consumptio n and, line and load transient response s the AP7343Q is well suited for noise sensitive automotive applications. The AP7343Q is packaged in SOT25 package, w hich allows for the smallest footprint and dense PCB layout. Features  Low VIN and Wide VIN Range: 1.7V to 5.25V -40°C to +125°C Temperature Range  Guarantee Output Current: 300mA  VOUT Accuracy ±1%  Ripple Rejectio n 75dB at 1kHz  Low Output Noise, 60 µVrms from 10Hz to 100kHz  Quiescent Current as Low as 35µA  VOUT Fixed 0.9V.
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