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Diodes Semiconductor Electronic Components Datasheet

AP3410 Datasheet

1.5MHz Synchronous Step-down DC-DC Converter

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AP3410 pdf
Preliminary Datasheet
1.5MHz Synchronous Step-down DC-DC Converter
AP3410
General Description
The AP3410 is a high efficiency step-down DC-DC
voltage converter. The chip operation is optimized by
peak-current mode architecture with built-in
synchronous power MOSFET switchers. The
oscillator and timing capacitors are all built-in
providing an internal switching frequency of 1.5MHz
that allows the use of small surface mount inductors
and capacitors for portable product implementations.
Integrated Soft Start (SS), Under Voltage Lock Out
(UVLO), Thermal Shutdown Detection (TSD) and
Short Circuit Protection are designed to provide
reliable product applications.
The device is available in adjustable output voltage
version ranging from 0.6V to 0.9×VIN when input
voltage range is from 2.5V to 5.5V, and is able to
deliver up to 1.2A.
The AP3410 is available in SOT-23-5 and
DFN-2×2-6 packages.
Features
• High Efficiency Buck Power Converter
• Wide Input Voltage Range: 2.5V to 5.5V
• Adjustable Output Voltage: 0.6V to 0.9×VIN
• Low RDS(ON) Internal Switches:200m(VIN=5V)
• Built-in Power Switches for Synchronous
Rectification with High Efficiency
• Output Current: 1.2A
• Feedback Voltage: 600mV
• 1.5MHz Constant Frequency Operation
• Thermal Shutdown Protection
• Low Dropout Operation at 100% Duty Cycle
• No Schottky Diode Required
• Input Over Voltage Protection
• Output Over Voltage Protection
• Over Current Protection
Applications
• Post DC-DC Voltage Regulation
• PDA and Notebook Computer
SOT-23-5
DFN-2×2-6
Mar. 2013 Rev. 1. 1
Figure 1. Package Types of AP3410
BCD Semiconductor Manufacturing Limited
1


Diodes Semiconductor Electronic Components Datasheet

AP3410 Datasheet

1.5MHz Synchronous Step-down DC-DC Converter

No Preview Available !

AP3410 pdf
Preliminary Datasheet
1.5MHz Synchronous Step-down DC-DC Converter
AP3410
Pin Configuration
K Package
(SOT-23-5)
DN Package
(DFN-2×2-6)
EN 1
GND 2
LX 3
5 FB
4 VIN
Figure 2. Pin Configuration of AP3410 (Top View)
Pin Description
Pin Number
SOT-23-5 DFN-2×2-6
12
25
34
43
56
1
Pin Name
EN
GND
LX
VIN
FB
NC
Function
Chip enable pin. Active high
Ground pin
Switch output pin
Power supply
Feedback voltage of output
No internal connection
Mar. 2013 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
2


Part Number AP3410
Description 1.5MHz Synchronous Step-down DC-DC Converter
Maker BCD Semiconductor
Total Page 11 Pages
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