SPECIFICATIONS

KW_3045 module delivery list

Physical module + module parameter index information PDF + after-sales technical support + electrostatic bag packaging + shock-proof foam

Kind tips:

(1) The module interface of our store is clear and the performance is stable. Please do functional verification in the corresponding experimental conditions in combination with the information provided by our store.

(2) The basic parameters of this module are all in the details page, and the PDF document of the module parameter index data is provided, but the schematic diagram and engineering file are not provided.

(3) Before using the module, please read the details page of this module in detail to understand the power supply and usage restrictions to avoid damage to the module due to improper operation.

(4) Our modules are guaranteed to provide real module parameters, functions and pictures, and all modules are shipped after testing.

Module parameters

Parameter name；Parameter value；Remark

Module model；KW_3045；Single LT3045

Module type；Linear Regulator Bucks

Input voltage；+20V(MAX)

The output voltage；4 versions；+5V、+9V、+12V、+15V

Output current；500mA(MAX)

Input and output pressure difference；<500mV

Output Power；6W(12V/0.5A)；For reference only

Load Regulation；±0.5 %

Voltage regulation；±1%

Static power；1mA

Output ripple；Better than 1mV；No load

Module noise；0.8µVRMS (10Hz-100kHz)

Module PSRR；76dB at 1MHz

Module enable；None

Module protection；None；No reverse polarity protection, no fuse

Module Features；Various；Single output, users can connect in parallel to increase output current; ultra-low noise, ultra-low ripple; with input power indicator

Module application；Various；Precision operational amplifiers, high-speed/high-precision data converters, RF circuit power supplies, etc.

Module weight；2.5g

Module size；30*18；L*W(mm)

Module heats up；The greater the load, the greater the heat

Operating temperature；-25—+75℃

Module description

KW_3045 is developed using ADI's LT3045 high-performance low-dropout linear regulator chip, which can provide designers with a complete solution for high-precision power supply analog applications. This LDO features ultra-high PSRR performance with very low output noise and is designed for noise-sensitive applications such as PLLs, VCOs, mixers, low noise amplifiers (LNAs), power amplifiers (PAs), precision op amps, ADCs, DACs, and other high-performance analog circuits).

Module usage precautions

(1) It is recommended to use the input voltage less than +20V.

(2) When the load is large or the pressure difference is large, heat dissipation measures can be appropriately increased, otherwise the chip will be overheated or damaged.

(3) The module has no reverse connection and overvoltage protection, please check and compare the power supply carefully before powering on, otherwise the module will be damaged.

(4) The heating of the linear power supply is mainly determined by the input and output voltage difference and the load current. Please select and use the power supply module reasonably. Generally, a 30% margin should be reserved.

(5) The module is a step-down module, and the input voltage needs to be more than 1V above the output to stabilize the output.

FAQ

Q: Can the outputs of two modules be connected in parallel?

A: When the output voltage of the two modules is the same, the outputs can be connected in parallel, and the maximum output current is 1000mA.

Q: Why can't the output voltage of the module be greater than the input voltage?

A: The module is a step-down module and cannot be boosted.

Q: Why can't the nominal ripple parameter be tested? There is a gap in measuring the ripple.

A: First of all, you need to have the correct measurement method, you can use Baidu power ripple measurement method by yourself. Secondly, the linear power supply can only suppress the ripple noise of the input signal, but it is not unlimited. If the switching power supply input is used and the noise is large, the linear power supply will not play much role, so generally the linear power supply is input through the transformer. Rectifier filter. Our shop has a full set of transformer rectifier filter linear power supply solutions and modules.