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AP3402 の電気的特性と機能

AP3402のメーカーはDiodesです、この部品の機能は「2A STEP-DOWN DC-DC BUCK CONVERTER」です。


製品の詳細 ( Datasheet PDF )

部品番号 AP3402
部品説明 2A STEP-DOWN DC-DC BUCK CONVERTER
メーカ Diodes
ロゴ Diodes ロゴ 




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AP3402 Datasheet, AP3402 PDF,ピン配置, 機能
AP3402
1.0MHZ, 2A STEP-DOWN DC-DC BUCK CONVERTER
Description
The AP3402 is a 2A step-down DC-DC converter. At heavy load, the
constant frequency PWM control performs excellent stability and
transient response. No external compensation components are
required.
The AP3402 supports a range of input voltages from 2.7V to 5.5V,
allowing the use of a single Li+/Li- polymer cell, multiple
Alkaline/NiMH cell, and other standard power sources. The output
voltage is adjustable from 0.6V to the input voltage. The AP3402
employs internal power switch and synchronous rectifier to minimize
external part count and realize high efficiency. During shutdown, the
input is disconnected from the output and the shutdown current is less
than 1μA. Other key features include over-temperature and short
circuit protection, and under-voltage lockout to prevent deep battery
discharge.
The AP3402 delivers 2A maximum output current while consuming
only 90μA of no-load quiescent current. Ultra-low RDS(ON) integrated
MOSFETs and 100% duty cycle operation make the AP3402 an ideal
choice for high output voltage, high current applications which require
a low dropout threshold.
The AP3402 is available in TSOT26 package.
Features
Output Current: Up to 2A
Output Voltage: 0.6V to VIN
Input Voltage: 2.7V to 5.5V
Peak Efficiency Up to 95%
90μA (Typ) No Load Quiescent Current
Shutdown Current: <1μA
100% Duty Cycle Operation
1MHz Switching Frequency
Power Good Indicator Function
Internal Soft Start
No External Compensation Required
Current Limit Protection
Thermal Shutdown
TSOT26 Package
Totally Lead-free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. GreenDevice (Note 3)
Pin Assignments
(Top View)
Pin 1 Mark
EN 1
GND 2
LX 3
6 FB
5 PG
4 VIN
TSOT26
Applications
5V or 3.3V Point of Load Conversion
Telecom/Networking Equipment
Set Top Boxes
Storage Equipment
Video Cards
DDR Power Supply
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.
AP3402
Document number: DS36623 Rev. 3 - 2
1 of 10
www.diodes.com
August 2015
© Diodes Incorporated

1 Page





AP3402 pdf, ピン配列
Functional Block Diagram
1 M OSC
6
FB
FREQ
SHIFT
0.6 V REF
1
EN CONTROL
PG 5 LOGIC
SLOPE COMP
____
OSC
+ PWM
+ COMP
_
IAMP
_
+ EA
+
SQ
_
RQ
SWITCHING
LOGIC AND
BLOCKING
CIRCUIT
ANTI -
SHOOT
THRU
SHUTDOWN
AP3402
4
VIN
3
LX
2
GND
Absolute Maximum Ratings (Note 4)
Symbol
Parameter
Rating
Unit
VIN Input Voltage
VEN EN Pin Voltage
VLX LX Pin Voltage
VFB Feedback Pin Voltage
VPG PG Pin Voltage
-0.3 to 6
-0.3 to VIN +0.3
-0.3 to VIN +0.3
-0.3 to VIN +0.3
-0.3 to VIN +0.3
V
V
V
V
V
JA Thermal Resistance (Junction to Ambient)
TSOT26
220 °C/W
TJ
TSTG
TLEAD
VMM
VHBM
Operating Junction Temperature
Storage Temperature
Lead Temperature (Soldering, 5 sec)
ESD (Machine Model)
ESD (Human Body Model)
+150
-65 to +150
+300
200
2000
°C
°C
°C
V
V
Note 4:
Stresses greater than 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 or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied.
Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.
Recommended Operating Conditions
Symbol
VIN
TA
TJ
Parameter
Input Voltage Range
Operating Ambient Temperature
Junction Temperature Range
Min Max Unit
2.7 5.5 V
-40 +85 °C
-40
+125
°C
AP3402
Document number: DS36623 Rev. 3 - 2
3 of 10
www.diodes.com
August 2015
© Diodes Incorporated


3Pages


AP3402 電子部品, 半導体
Performance Characteristics (@TA = +25ºC, VIN = 5.0V, VOUT = 1.8V, unless otherwise specified.)
AP3402
Enable Turn on Characteristic (IOUT=2A)
VEN
(2V/div)
VOUT
(1V/div)
VPG
(2V/div)
IL
(2A/div)
Time (5ms/div)
Short Current Protection (IOUT=2A)
Enable Turn off Characteristic (IOUT=2A)
VEN
(2V/div)
VOUT
(1V/div)
VPG
(2V/div)
IL
(2A/div)
Time (200µs/div)
SCP Recovery (IOUT=2A)
VOUT
(1V/div)
IL
(2A/div)
VSW
(5V/div)
Time (50ms/div)
Load Transient (IOUT=0.1A to 2A)
VOUT
(1V/div)
IL
(2A/div)
VSW
(5V/div)
Time (50ms/div)
Load Transient (IOUT=1A to 2A)
VOUT_AC
(100mV/div)
IOUT
(1A/div)
Time (100µs/div)
VOUT_AC
(100mV/div)
IOUT
(1A/div)
Time (100µs/div)
AP3402
Document number: DS36623 Rev. 3 - 2
6 of 10
www.diodes.com
August 2015
© Diodes Incorporated

6 Page



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共有リンク

Link :


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