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ADP1614-1.3-EVALZ: 15V @ 1.4A, 2.5 ~ 5.5V in

Summary

The ADP1614 evaluation board is a complete step-up, dc-to-dc switching converter application with components selected to allow operation over the full range of input and load conditions for the 5 V (ADP1614-650-EVALZ) and 15 V (ADP1614-1.3-EVALZ) output voltages. The boost switching frequency is fixed to either 650 kHz (ADP1614-650-EVALZ) or 1.3 MHz (ADP1614-1.3-EVALZ). The evaluation boards can be adjusted for different output voltages by changing the feedback resistors, R1 and R2. To ensure stable operation, external components L1, RCL, COUT, RCOMP, and CCOMP may also need to be recalculated and adjusted when the output voltage is changed.

The ADP1614 evaluation board operates in current mode, pulse-width modulation (PWM) with up to 94% efficiency. The current mode PWM architecture allows for excellent transient response, easy noise filtering, and the use of small, cost-saving external inductors and capacitors. Other key features include a 47 nF soft start capacitor, undervoltage lockout (UVLO), thermal shutdown (TSD), and jumper selected enable. The evaluation board demonstrates the operation and performance of the ADP1614.

Specifications

Manufacturer Analog Devices Inc.
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Part Number ADP1614-1.3-EVALZ-ND
Eval Board Supplier Analog Devices Inc.
Eval Board Normally In Stock
Topology Step Up
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 15 V
Current Out 1.4 A
Voltage In 2.5 ~ 5.5 V
Efficiency @ Conditions >90%, 5V in, 10V @ 200 mA ~ 1.4 A
>88%, 5V in, 15V @ 140 mA ~ 1 A
>87%, 3.6V in, 5V @ 0.1 ~ 2.3 A
>85%, 3.6V in, 10V @ 80 mA ~ 1 A
>82%, 3.6V in, 15V @ 80 mA ~ 1 A
Voltage Out Range Vin ~ 20 V
Features Shutdown, Enable, Standby
Soft Start
Thermal Protection
Under Voltage Protection, Brown-Out
Switching Frequency 1.3 MHz
Standby Current [Typical] 250 nA
Quiescent Current [Typical] 5.5 mA
Component Count + Extras 13 + 6
Internal Switch Yes
Design Author Analog Devices
Application / Target Market LCD Backlighting
LCD TV / Monitor
Portable Devices
Standby Current [Maximum] 1.5 µA
Quiescent Current [Maximum] 7 mA
Main I.C. Base Part ADP1614
Date Created By Author 2012-07
Date Added To Library 2013-07

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