DC1195A: 3.3V @ 2A, 5 ~ 36V in, Inductor On-Chip

Summary

Demonstration circuit 1195 features the LTM®8023, a step-down regulator preconfigured to deliver 3.3V at up to 2A from a 5V to 36V input supply. The LTM8023 is a step-down converter, so minimum amount of headroom is required to keep the output in regulation. In addition, the input voltage required to turn on is higher than that required to run (see Minimum Input Voltage section in the data sheet for detail).

The optional Burst Mode® operation of LTM8023 supports high efficiency and low output ripple at light load conditions.

The LTM8023 data sheet gives a complete description of the part, operation and application information. The LTM8023 data sheet must be read in conjunction with this manual to operate or modify demo circuit 1195.

Specifications

Manufacturer Linear Technology/Analog Devices
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Part Number DC1195A-ND
Eval Board Supplier Linear Technology/Analog Devices
Eval Board Normally In Stock
Topology Step Down
Outputs and Type 1 Non-Isolated
Output Voltage: Factory Set 3.3 V
Current Out 2 A
Voltage In 5 ~ 36 V
Efficiency @ Conditions >86%, 5V in, 3.3V @ 0.2 ~ 1 A
>80%, 12V in, 3.3V @ 0.1 ~ 2 A Out
>79%, 24V in, 3.3V @ 0.3 ~ 2 A Out
>77%, 36V in, 3.3V @ 0.4 ~ 2 A Out
Voltage Out Range - Not Given
Features Internal Inductor
Light Load Mode
Power Good Output
Shutdown, Enable, Standby
Soft Start
Synchronizable
Switching Frequency 600 kHz
Standby Current [Typical] 100 nA
Quiescent Current [Typical] 85 µA
Component Count + Extras 10 + 11
Internal Switch Yes
Design Author Linear Technology
Application / Target Market Automotive
Point of Load (PoL)
Portable Devices
Standby Current [Maximum] 500 nA
Quiescent Current [Maximum] 350 µA
Main I.C. Base Part LTM8023

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