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PDF AP3402 Data sheet ( Hoja de datos )
| Número de pieza | AP3402 | |
| Descripción | 2A STEP-DOWN DC-DC BUCK CONVERTER | |
| Fabricantes | Diodes | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AP3402 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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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. “Green” Device (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
Performance Characteristics (@TA = +25ºC, VIN = 5.0V, VOUT = 1.8V, unless otherwise specified.)
100
90
80
70
60
50
40
30
20
10
0
1
Efficiency vs. Load Current
V =5V,V =1.0V
IN OUT
V =5V,V =1.8V
IN OUT
V =5V,V =3.3V
IN OUT
10 100
I (mA)
OUT
1000
Feedback Reference Voltage vs. Temperature
0.620
0.615
0.610
0.605
0.600
0.595
0.590
0.585
0.580
-60 -40 -20
0 20 40 60 80 100 120 140
Temperature (oC)
PFET Drain-Source On-State Resistance vs. Temperature
NFET Drain-Source On-State Resistance vs. Temperature
200
190
180
170
160
150
140
130
120
110
100
-60 -40 -20
0 20 40 60 80 100 120 140
Temperture (oC)
120
110
100
90
80
70
60
50
-60 -40 -20
0 20 40 60 80 100 120 140
Temperture (oC)
Inductor Current Limit vs. Temperature
4.6
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
2.8
2.6
-60 -40 -20
0 20 40 60 80 100 120 140
Temperature (oC)
Oscillation Frequency vs. Temperature
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
0.75
0.70
-60 -40 -20 0 20 40 60 80 100 120 140
Temperature (oC)
AP3402
Document number: DS36623 Rev. 3 - 2
5 of 10
www.diodes.com
August 2015
© Diodes Incorporated
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet AP3402.PDF ] | |
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