AP7342D-1818FS6-7 [DIODES]
DUAL 150mA HIGH PSRR LOW NOISE LDO WITH ENABLE;型号: | AP7342D-1818FS6-7 |
厂家: | DIODES INCORPORATED |
描述: | DUAL 150mA HIGH PSRR LOW NOISE LDO WITH ENABLE |
文件: | 总14页 (文件大小:2609K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
AP7342
DUAL 150mA HIGH PSRR LOW NOISE LDO WITH ENABLE
Description
Pin Assignments
The AP7342 is a dual low dropout regulator with high output voltage
accuracy, low RDSON, high PSRR, low output noise and low quiescent
current. This regulator is based on a CMOS process.
Each regulator includes a voltage reference, error amplifier, current
limit circuit and an enable input to turn on/off output. With the
integrated resistor network, fixed output voltage versions can be
delivered.
With its low power consumption and line and load transient response,
the AP7342 is well suited for low power handheld communication
equipment.
The AP7342 is packaged in X2-DFN1212-6 package and allows for
smallest footprint and dense PCB layout.
Features
Applications
•
•
•
•
•
•
•
•
•
Low VIN and Wide VIN Range: 1.7V to 5.25V
Guarantee Output Current: 150mA
•
•
•
•
•
•
•
Smart Phone/PAD
RF Supply
VOUT Accuracy 1%
Cameras
Ripple Rejection: 75dB at 1kHz
Portable Video
Low Output Noise: 60µVrms from 10Hz to 100kHz
Quiescent Current as Low as 35µA
Portable Media Player
Wireless Adapter
Wireless Communication
VOUT Fixed 1.2V to 3.6V
Totally Lead-Free & and Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free, Green Device (Note 3)
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
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AP7342
Document number: DS37614 Rev. 2 - 2
AP7342
Pin Descriptions
Pin Number
Pin Name
VOUT1
Function
1
2
3
Channel 1 Output Voltage Pin
Channel 2 Output Voltage Pin
VOUT2
GND
Ground
Chanel 2 Enable Pin
This pin should be driven either high or low and must not be floating. Driving this pin high
enables channel 2 output, while pulling it low puts Chanel 2 regulator into shutdown
mode.
4
5
6
EN2
VIN
Power Input Pin
Chanel 1 Enable Pin
This pin should be driven either high or low and must not be floating. Driving this pin high
enables channel 1 output, while pulling it low puts Chanel 1 regulator into shutdown
mode.
EN1
In PCB layout, it is preferred 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.
–
Thermal PAD
Functional Block Diagram
AP7342 (No Discharge)
AP7342 (With Discharge)
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AP7342
Document number: DS37614 Rev. 2 - 2
AP7342
Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.) (Note 4)
Symbol
VIN
Parameter
Rating
6.0
Unit
V
Input Voltage
VEN
Input Voltage at EN Pins
Output Voltage
6.0
V
VOUT
IOUT
PD
-0.3 to VIN +0.3
180
V
Output Current
mA
mW
°C
°C
Power Dissipation
600
TA
Operating Ambient Temperature
Storage Temperature
-40 to +85
-55 to +125
TSTG
Note:
4. 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.
Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.)
Symbol
VIN
Parameter
Min
1.7
0
Max
5.25
150
+85
Unit
V
Input Voltage
IOUT
TA
Output Current
mA
°C
Operating Ambient Temperature
-40
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AP7342
Document number: DS37614 Rev. 2 - 2
AP7342
Electrical Characteristics
(@TA = +25°C, VIN = VOUT+1V (VOUT > 1.5V), VIN = 2.5V (VOUT ≤ 1.5V), IOUT = 1mA, CIN = COUT = 1.0µF, unless otherwise specified.)
Parameter
Conditions
TA = -40°C to +85°C
Min
1.7
-1
Typ
–
Max
5.25
1
Unit
Input Voltage
V
TA = +25°C
–
VIN = (VOUT-Nom+1.0V) to
5.25V,
Output Voltage Accuracy (Note 11)
%
TA = -40°C to +85°C
-1.5
–
–
1.5
0.1
IOUT = 1mA to 150mA
Line Regulation (∆VOUT/∆VIN/VOUT
)
VIN = (VOUT-Nom+1.0V) to 5.25V, IOUT = 1.0mA
VIN = VOUT-Nom+1.0V, IOUT = 1mA to 150mA
0.02
%/V
Load Regulation (∆VOUT/∆IOUT
)
–
–
15
35
30
50
mV
µA
Set EN1 high, set EN2 low, or set EN2 high,
set EN1 low, No load
Quiescent Current (Note 6)
Set EN1/EN2 high, No load
Set EN1/EN2 low, No load
–
–
–
70
0.1
–
100
1.0
–
µA
µA
ISTANDBY
Output Current
300
–
mA
mA
Fold-back Short Current (Note 7)
PSRR (Note 8)
VOUT short to ground
55
–
VIN = (VOUT+1V) VDC
0.2Vp-pAC,
+
f = 1kHz
–
75
–
dB
VOUT ≥1.8V, IOUT = 30mA
Output Noise Voltage (Notes 8 & 9)
BW = 10Hz to 100kHz, IOUT = 30mA
–
–
60
0.48
0.39
0.35
0.30
0.26
0.25
0.22
30
–
µVrms
VOUT ≤ 1.2V
0.59
0.50
0.44
0.39
0.34
0.30
0.29
–
1.2V < VOUT ≤ 1.4V
–
1.4V < VOUT ≤ 1.7V
1.7V < VOUT ≤ 2.1V
2.1V < VOUT ≤ 2.5V
2.5V < VOUT ≤ 3.0V
3.0V < VOUT ≤ 3.6V
–
Dropout Voltage (Note 5)
IOUT = 150mA
–
V
–
–
–
Output Voltage Temperature Coefficient
EN Input Low Voltage
IOUT = 30mA, TA = -40°C to +85°C
–
ppm/°C
–
0
–
0.5
V
V
EN Input High Voltage
–
1.3
-1.0
–
5.25
1.0
EN Input Leakage
VEN = 0V, VIN = 5.0V or VEN = 5.0V, VIN = 0V
–
µA
On Resistance of N-Channel for Auto-
Discharge (Note 10)
VIN = 4.0V, VEN = 0V
D Version, Chanel 1 & 2
(Disabled)
–
50
–
Ω
Notes:
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
8. This specification is guaranteed by design.
pulled to GND.
9. To make sure lowest environment noise minimizes the influence on noise measurement.
10. AP7342 has 2 options for output, built-in discharge and non-discharge
11. Potential multiple grades based on following output voltage accuracy.
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AP7342
Document number: DS37614 Rev. 2 - 2
AP7342
Typical Characteristics
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AP7342
Document number: DS37614 Rev. 2 - 2
AP7342
Typical Characteristics (cont.)
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Document number: DS37614 Rev. 2 - 2
AP7342
Typical Characteristic (cont.)
Load Transient Response Waveforms(VIN=VOUT+1V, CIN=COUT1=COUT2=0.47µF, TA=25°C)
1.8V
4
3
2
Input Voltage
1.82
1.80
1.78
Output Voltage
0
20
40
60
80
Time t (µs)
2.8V
4
3
2
Input Voltage
Output Voltage
2.82
2.80
2.78
0
20
40
60
80
Time t (µs)
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AP7342
Document number: DS37614 Rev. 2 - 2
AP7342
Typical Characteristics (cont.)
Load Transient Response Waveforms(VIN=VOUT+1V, CIN=COUT1=COUT2=0.47µF, TA = +25°C)
COUT=0.47µF
COUT=0.47µF
1.8V
2.8V
150
100
50
150
100
50
Output Current
50mA ↔ 100mA
Output Current
50mA ↔ 100mA
0
0
1.9
1.8
2.9
2.8
2.7
1.7
Output Voltage
Output Voltage
3.4
3.3
3.2
3.1
3.0
2.9
Output Voltage Iout=30mA
Output Voltage Iout=30mA
0
80
160
240 320
Time t (µs)
400
0
80
160
240
320 400
Time t (µs)
COUT=0.47µF
COUT=0.47µF
1.8V
2.8V
200
100
0
200
100
0
Output Current
0.1mA ↔ 150mA
Output Current
0.1mA ↔ 150mA
1.9
1.8
1.7
2.9
2.8
2.7
Output Voltage
Output Voltage
3.4
3.3
3.2
3.1
3.0
2.9
Output Voltage Iout=30mA
Output Voltage Iout=30mA
0
80
160
240 320
Time t (µs)
400
0
80
160
240 320
Time t (µs)
400
Turn On Waveform of Output Discharge versions (VIN=VOUT+1V, CIN=COUT1=COUT2=0.47µF, TA = +25°C)
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AP7342
Document number: DS37614 Rev. 2 - 2
AP7342
Typical Characteristics (cont.)
Turn Off Waveform of Output Discharge versions (VIN=VOUT+1V, CIN=COUT1=COUT2=0.47µF, TA = +25°C)
1.8V
2.8V
4
2
CE Input Voltage
CE Input Voltage
3
2
1
0
0
2
1
0
4
2
0
IOUT=0mA
IOUT=30mA
IOUT=150mA
IOUT=0mA
IOUT=30mA
IOUT=150mA
Output Voltage
Output Voltage
0
40
80
120
160
200
0
40
80
120
160
200
Time t (µs)
Time t (µs)
Application Information
Output Capacitor
An output capacitor (COUT) is needed to improve transient response and maintain stability. The AP7342 is stable with very small ceramic output
capacitors. The ESR (Equivalent Series Resistance) and capacitance drives 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
and care should 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 0.47µF 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 AP7342 is turned on by setting the EN pins high, and is turned off by pulling it low. If this feature is not used, the EN pins 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 pins must be able to swing above
and below the specified turn-on/off voltage thresholds listed in the Electrical Characteristics section.
Short Circuit Protection
When VOUT pins are short-circuit to GND, short circuit protection will be triggered and clamp the output current to approximately 60mA. This feature
protects the regulator from overcurrent and damage due to overheating.
Layout Considerations
For good ground loop and stability, the input and output capacitors should be located close to the input, output, and GND pin of the device. The
regulator GND pin should 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 should be used for large current paths from VIN to VOUT and load circuit.
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AP7342
Document number: DS37614 Rev. 2 - 2
AP7342
ESR vs. Output Current
Ceramic type output capacitor is recommended for this series; however, the other output capacitors with low ESR can also 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.
ESR vs. Output Current
AP7342-18
ESR vs. Output Current
AP7342-33
100
10
100
10
1
1
0.1
0.1
0.01
0.001
0.01
0.001
0
50
100
150
200
250
300
0
50
100 150 200 250 300
Output Current IOUT (mA)
Output Current IOUT (mA)
Ordering Information
AP7342X XXXX FS6
7
Output Discharge
CH1/CH2 Output Voltage
Package
FS6 : X2-DFN1212-6
Packing
Blank : Non-discharge
D : Output Discharge
CH1
CH2
7 : Tape & Reel
12 : 1.2V
15 : 1.5V
18 : 1.8V
12 : 1.2V
15 : 1.5V
18 : 1.8V
25 : 2.5V
28 : 2.8V
30 : 3.0V
33 : 3.3V
36 : 3.6V
25 : 2.5V
28 : 2.8V
30 : 3.0V
33 : 3.3V
7” Tape and Reel
Part Number Suffix
Package
Device
Packaging
Code
Quantity
AP7342-XXXXFS6-7
AP7342D-XXXXFS6-7
FS6
FS6
X2-DFN1212-6
X2-DFN1212-6
5,000/Tape & Reel
5,000/Tape & Reel
-7
-7
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AP7342
Document number: DS37614 Rev. 2 - 2
AP7342
Marking Information
(1) X2-DFN1212-6
VOUT1/VOUT2
3.0V/2.8V
3.3V/2.8V
1.2V/1.8V
1.5V/2.8V
1.8V/1.5V
1.8V/1.8V
1.8V/2.8V
1.8V/3.3V
2.5V/1.8V
Part Number
Package
Identification Code
AP7342-3028FS6-7
AP7342-3328FS6-7
AP7342D-1218FS6-7
AP7342D-1528FS6-7
AP7342D-1815FS6-7
AP7342D-1818FS6-7
AP7342D-1828FS6-7
AP7342D-1833FS6-7
AP7342D-2518FS6-7
X2-DFN1212-6
X2-DFN1212-6
X2-DFN1212-6
X2-DFN1212-6
X2-DFN1212-6
X2-DFN1212-6
X2-DFN1212-6
X2-DFN1212-6
X2-DFN1212-6
CAA
CAB
CAC
CAD
CAE
CAF
CAG
CAH
CAJ
AP7342D-2812FS6-7
AP7342D-2818FS6-7
AP7342D-2825FS6-7
AP7342D-2833FS6-7
AP7342D-3018FS6-7
AP7342D-3028FS6-7
AP7342D-3030FS6-7
AP7342D-3318FS6-7
AP7342D-3328FS6-7
AP7342D-3330FS6-7
AP7342D-3333FS6-7
AP7342D-3612FS6-7
2.8V/1.2V
2.8V/1.8V
2.8V/2.5V
2.8V/3.3V
3.0V/1.8V
3.0V/2.8V
3.0V/3.0V
3.3V/1.8V
3.3V/2.8V
3.3V/3.0V
3.3V/3.3V
3.6V/1.2V
X2-DFN1212-6
X2-DFN1212-6
X2-DFN1212-6
X2-DFN1212-6
X2-DFN1212-6
X2-DFN1212-6
X2-DFN1212-6
X2-DFN1212-6
X2-DFN1212-6
X2-DFN1212-6
X2-DFN1212-6
X2-DFN1212-6
CAK
CAM
CAN
CAP
CAR
CAS
CAT
CAU
CAV
CAW
CAX
CAY
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AP7342
Document number: DS37614 Rev. 2 - 2
AP7342
Package Outline Dimensions (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version.
X2-DFN1212-6
Dim Min
Max
0.40
0.05 0.020
Typ
0.39
A
A1
A3
b
D
D2
E
-
0.00
-
-
0.13
0.18
1.20
0.94
1.20
0.30
0.40
0.20
0.20
0.11
0.05
0.13
1.15
0.89
1.15
0.25
-
0.23
1.25
0.99
1.25
0.35
-
0.25
0.25
-
E2
e
k
L
z
z1
0.15
0.15
-
-
-
All Dimensions in mm
Suggested Pad Layout
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.
Value
Dimensions
(in mm)
0.400
0.150
0.250
0.940
1.050
0.400
0.300
1.400
C
G
X
X1
X2
Y
Y1
Y2
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Document number: DS37614 Rev. 2 - 2
AP7342
Tape Orientation
Note: The taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf.
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AP7342
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
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).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
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 © 2015, Diodes Incorporated
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Document number: DS37614 Rev. 2 - 2
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