DC/DC Converter. TP3406 Datasheet

TP3406 Converter. Datasheet pdf. Equivalent


Part TP3406
Description High Efficiency PWM Step-Down DC/DC Converter
Feature TP3406 1.5MHz, 600mA, High Efficiency PWM Step-Down DC/DC Converter General Description The TP34.
Manufacture Top Power
Datasheet
Download TP3406 Datasheet


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TP3406 1.5MHz, 600mA, High Efficiency PWM Step-Down DC/DC TP3406 Datasheet
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TP3406
南京拓微集成电路有限公司
TP3406
1.5MHz, 600mA,
High Efficiency PWM Step-Down DC/DC Converter
General Description
The TP3406 is a high-efficiency pulse-width-modulated(PWM) step-down DC-DC
converter. Capable of delivering600mA output current over a wide input voltage
range from2.5V to 5.5V, the TP3406 is ideally suited for port -ableelectronic
devices that are powered from 1-cell Li-ion battery or from other power sources
within the range suchas cellular phones, PDAs and handy-terminals.
Internal synchronous rectifier with low RDS(ON) dramatically reduces cond
-uction loss at PWM mode. No external Schottky diode is required in prac -tical
application. The TP3406 automatically turns off the synchronous rec -tifier while
the inductor current is low and enters discontinuous PWM mode. This can
increase efficiency at light load condition.
The TP3406 enters Low-Dropout mode when normal PWM cannot provide
regulated output voltage by continuously turning on the upper P-MOSFET.
TP3406 enter shutdown mode and consumes less than 0.1mA when EN pin is
pulled low.
The switching ripple is easily smoothed-out by small package filtering elem -ents
due to a fixed operation frequency of 1.5MHz. This along with small SOT-23-5
and TSOT-23-5 package provides small PCB area application.
Other features include soft start, lower internal reference voltage with 2%
accuracy, over temperature protection,and over current protection
Pin Configurations
Features
+2.5V to +5.5V Input Range
Adjustable Output From 0.6V to VIN
1.0V, 1.2V, 1.5V, 1.8V, 2.5V and 3.3V Fixed/ Adjustable Output Voltage
600mA Output Current, 1A Peak Current
95% Efficiency
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TP3406
南京拓微集成电路有限公司
No Schottky Diode Required
1.5MHz Fixed-Frequency PWM Operation
Small SOT-23-5 and TSOT-23-5 Package
RoHS Compliant and 100% Lead (Pb)-Free
Applications
Cellular Telephones
Personal Information Appliances
Wireless and DSL Modems
MP3 Players
Portable Instruments
Typical Application Circuit
TP3406
Figure 1. Fixed Voltage Regulator
Figure 2. Adjustable Voltage Regulator
with R2 = 300kΩ to 60kΩ so the IR2 = 2μA to 10μA,
and (R1 x C1) should be in the range between 3x10-6 and 6x10-6 for component
selection.
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