LMZ12003TZ-ADJ
Part Number: LMZ12003TZ-ADJ
Manufacturer: Texas Instruments
Description: DC DC CONVERTER 0.8-6V
Shipped from: Shenzhen/HK Warehouse
Stock Available: Check with us
ICRFQ.com - Electronic Components Distributor in China Since 2003
Part Number: LMZ12003TZ-ADJ
Manufacturer: Texas Instruments
Description: DC DC CONVERTER 0.8-6V
Shipped from: Shenzhen/HK Warehouse
Stock Available: Check with us
Datasheet | LMZ12003TZ-ADJ/NOPB datasheet |
---|---|
Category | Power Supplies – Board Mount |
Family | DC DC Converters |
Manufacturer | Texas Instruments |
Series | SIMPLE SWITCHER? |
Packaging | Digi-Reel? |
Part Status | Active |
Type | Non-Isolated PoL Module |
Number of Outputs | 1 |
Voltage – Input (Min) | 4.5V |
Voltage – Input (Max) | 20V |
Voltage – Output 1 | 0.8 ~ 6 V |
Voltage – Output 2 | – |
Voltage – Output 3 | – |
Current – Output (Max) | 3A |
Power (Watts) – Manufacture Series | – |
Voltage – Isolation | – |
Applications | ITE (Commercial) |
Features | UVLO |
Mounting Type | Surface Mount |
Package / Case | TO-PMOD-7, Power Module |
Size / Dimension | 0.40″ L x 0.39″ W x 0.18″ H (10.2mm x 9.9mm x 4.6mm) |
Operating Temperature | -40°C ~ 125°C |
Efficiency | 92% |
Power (Watts) – Max | – |
The LMZ12003TZ-ADJ is a powerful step-down DC-DC power module that can manage currents as high as 3A and is incredibly flexible in its use. If you’re looking to better utilize this potent tool in your projects, this tutorial will help you gain a thorough understanding of its features, functions, and applications.
The LMZ12003TZ-ADJ is a power module that can convert unregulated input voltage into a stable regulated output voltage with minimal loss of energy. The main capabilities and characteristics are as follows:
The foundation of the LMZ12003TZ-ADJ’s regulating technique is Constant On-Time (COT) control. A comparator and ON-time one-shot are used to check the output voltage against a 0.8-volt internal reference.
When the feedback voltage drops below the reference, a programming resistor (RON) activates the main MOSFET for a programmed amount of time. By connecting RON to VIN, the ON time can be varied in response to variations in the input voltage. This method of regulation guarantees consistent and precise control.
In order to safeguard against output voltages that are too high, the LMZ12003TZ-ADJ includes an OVP function. The ON time is cut short if the voltage at the feedback (FB) pin goes beyond 0.92 V.
This is a precaution to make sure input voltage doesn’t spike or drop too quickly and cause harm. When the Overcurrent Protection (OVP) is activated, the ON-times of the top MOSFETs are reduced while the synchronous MOSFET stays on until the inductor current is zero.
A thermal protection system is integrated into the LMZ12003TZ-ADJ in order to forestall catastrophic failures brought on by excessive heating. The system goes into a low-power standby mode when the junction temperature hits the normal threshold of 165 degrees Celsius. At this point, the main MOSFET is still turned off, and the CSS capacitor has been discharged all the way to the ground.
The presence of thermal protection on a device assures that it will continue to function normally even when subjected to extremely high temperatures. The gadget will resume normal operation whenever the temperature drops back down to below 145 degrees Celsius (the typical hysteresis value is 20 degrees Celsius).
By utilizing Zero Coil Current Detection, the LMZ12003TZ-ADJ is able to improve its efficiency even when light loads are present. When the current in the lower (synchronous) MOSFET reaches zero, this component inhibits it until the next ON-time, monitoring the current throughout the process.
This function enables the Discontinuous Conduction Mode (DCM), which helps to improve overall efficiency and decrease power loss, particularly while working with low loads.
Because of its adaptability, the LMZ12003TZ-ADJ is suited for a broad variety of applications, particularly those that require effective power conversion and reliable protective mechanisms. The following are some examples of possible applications:
The LMZ12003TZ-ADJ is a power module that transforms input voltage to regulated output voltage for a variety of electronic applications.
The COT control circuit drives the regulation process of the LMZ12003TZ-ADJ. When the input voltage varies, it compares the output voltage to a reference value and adjusts the ON-time of the main MOSFET to keep the output voltage consistent and precise.
It keeps the output voltage consistent and accurate by regulating the primary MOSFET’s ON-time depending on a reference value, even when the input voltage changes.
OVP is a safety feature that shuts down the power module immediately if the output voltage exceeds a particular threshold (0.92V in this example). It protects the linked devices from abrupt voltage spikes or variations in load.
Thermal protection on the LMZ12003TZ-ADJ kicks in when the internal temperature hits 165°C. This safeguard places the gadget in a low-power standby mode, reducing overheating and potential damage. When the temperature falls below 145°C, normal operation resumes.
The current of the bottom synchronous MOSFET is monitored via Zero Coil Current Detection. When the current reaches zero, it disables this MOSFET until the next ON-time, which increases efficiency, especially at light loads, by minimizing power losses.
It is utilized for efficient power regulation and protection in a variety of applications, including industrial equipment, automotive electronics, telecommunications, portable devices, and renewable energy systems.
In summary, the LMZ12003TZ-ADJ is a powerful and versatile step-down DC-DC power module, offering remarkable efficiency, precise regulation, and robust protection features. With a 3A load capacity and stable output voltage, it suits a wide range of applications, from industrial machinery to portable electronics. Featuring the advanced COT control, overvoltage protection, thermal safeguards, and enhanced efficiency with zero coil current detection, this module is an invaluable tool for engineers and designers seeking reliable power solutions.
To harness the LMZ12003TZ-ADJ’s potential and elevate your projects, connect with ICRFQ, China’s leading electronic component distributor. Time is of the essence, so act now to turn your ideas into reality. Contact ICRFQ and embark on a journey of innovation today. Your next breakthrough awaits. Connect with ICRFQ now!
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