Most DC to DC Converter Step Up Voltage Circuits using LT1073

Last updated on April 16th, 2022 at 06:16 pm

Suppose, you want to use the 5Vdc power supply levels up to 100mA, But there is only one single AA 1.5V battery. This working we need to use The DC to DC converter step up voltage. but will choose which is better circuit well, to create simple and small. I try to was looking on the internet, we should be use the IC packages best, because small and easy to build.

Most DC to DC Converter Step Up Voltage Circuits using LT1073

I am interested in the number of IC LT1073, It is the micropower DC-DC Converter Adjustable and Fixed 5V, 12V, They has the shape as DIP 8 pin and Prodution by:, can be get the input voltage minimum 1V and peak voltage to 30V, the high power output current is about 1A. You would not have as clear picture, let’s see a better examples.

In this circuit, we use 1.5V battery increase the voltage is 5VDC or 12VDC or a normally DC to DC converters. This ICs can be used of 3 model, the two model first is a fixed 5V and 12V, are also use in a modified a voltage too , By the adjustments how a voltage divider with two resistors, of the output,of the 8-pin terminals and connected to compare the internal pressure in the circuit. For the maintain the output a voltage to a stable maximum. The 1N5818 as diode used with high frequency or schottky type only.

1.5VDC to 5VDC Low Noise Step UP Converter Circuit

1.5 VDC to 5 VDC Low noise step up converter

Example the first figure is 1.5Vdc to 5Vdc Low noise step up converter circuit,

We will not use a plain diode, Such as NO. 1N4002. The coil L1 we use size of a 82 uH, The capacitor C1 – 100uF should be use the tantalum type better than the electrolytic, Because of good performance and reduce noise, In the circuit has a low ripple voltage is 20mV-p

Read also: How to use 7805 voltage regulator

5VDC to 12VDC Step-UP Converter Circuit

5V to 12V step-up converter circuit

The figure circuit second is the 5V to 12Vdc step-up Converter circuit.

Note: More related projects: Boost converter 5V to 12VDC converter 6V to 12V

Normally the your circuit have the power supply size of 5V in the digital circuits, but need to use a voltage size of 12Vdc. This circuit can help you certainly, they small and easy to make. We use the IC NO. LT1073-12 is as the heart of this circuit. They are constant voltage source as 12 volt at 130mA output, although input voltage will be given a few volts.

3VDC to 12VDC Step UP DC Converter

3VDC to 12VDC Step-up DC converter using LT1073-12

Which is similar to the circuit 3 : The 3Vdc to 12Vdc step up DC converter by IC LT1073-12,

When we have a battery of two cell 1.5V AA batteries or 3 voltage input source, but want size of voltage 12VDC. This circuit can be done, but when we use the battery voltage size of 2 V will be has a current is about 35mA only, That’s something we accept, In some work we use low power interface, such as : an op-amp circuits, digital CMOS circuits and others.

In addition to I have the boost up DC volt, more 3 circuits, with the same circuit is a little device, information about the device. You can see it in circuit below.

3V to 5V Step UP Converter

1.The 3V to 5V step up converter with under voltage lockout Circuit. 100mA output current at lockout 1.8V

3V to 5V step-up converter with under voltage lockout

5V to 15V DC Step up converter

5V to 15V step-up-converter with IC LT1073

2. Here is the 5V to 15V DC Step up converter circuit.

3V to 15V step up DC converter

3V to 15V step-up-dc-converter by LT1073

3. The 3V to 15V step up DC converter by LT1073. to get the output 15V at 27mA and if you enter battery 2 volt.

I hope you enjoy using a variety of circuit number LT1073.

5VDC Switching regulator from 9V battery by LT1073-5

When i want 5V switching regulator (mini project),so i am used input is 9V battery.
The good circuit for work is the IC LT1073-5 (see detail in, it out put 100mA current.
The zener diode is 1N5818,L1 = 100uH
Detail more please see in image.

5VDC Switching regulator from 9V battery by LT1073-5

9V to 3V Step-Down Converter by LT1073

I want mini size switching regulator,so it input voltage 9V to 3V Step-Down Converter circuit.
The LT1073 is a good idea, it used for dc to dc converter.
if want it, please read in
Vout 3V at 100mA, L1 100?H , D1 – Diode 1N5818 or equiv

Detail more, please see in the image.


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  1. I have questions about the 5V to 12Vdc step-up Converter circuit.
    Is this circuit applicable when your INPUT 5Vdc is from the usb port of the laptop?
    How many turns does the 150uH have and its diameter?
    I want to create this step up converter for my project.
    Hoping for your reply. Thank you..

  2. amir

    i want to ask a about the coding in the ic?where can i find?did u have it?i need for my final project..

  3. mohsin

    my question about capactor voltage when we use 3v input and if we want 500mA what will do and last about much turn and diameter.
    Kindly reply and plz snd circuit and parts specification.i am very new student

  4. Barry

    where can we buy one of these complte sets

  5. Yash Lotan

    I want to power my 12v DC motor (MXN13FB12F) .
    You gave the circuit which is fine,
    But in which port i should connect it?positive or negative.
    And what to do with another port.
    Please tell me fast.
    Mail me at – [email protected]

  6. Mamtesh

    where do I get spares & PCB for DC to DC step up converter pl let me know

  7. Kolly

    I need assistance of having schematic diagram to charge 18650 battery.

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