RPZ-3.0A Series

  • Buck regulator power module with integrated shielded inductor
  • 6V maximum input voltage
  • Programmable 0.6 - 5.5V output voltage
  • 3A maximum output current
  • SCP, OCP, OTP, and UVLO protection
  • 2.5mm x 3.5mm x 1.6mm QFN package
  • Flip-Chip technology for improved thermal management
  • Efficiency up to 92%

Introducing the RPZ-3.0A, the latest innovation in non-isolated step-down power modules. This compact powerhouse redefines expectations with its cutting-edge features and compact design, making it an ideal choice for applications demanding efficiency, reliability, and space optimization such as portable electronics, IoT devices, embedded systems, industrial automation, and for powering microcontrollers and sensors. The RPZ-3.0A is a buck regulator power module that incorporates an integrated shielded inductor, ensuring optimal performance in a variety of settings. With a maximum input voltage of 6V, this module is designed for efficiency and size, offering a stable and reliable power conversion solution for low-voltage applications. Flexibility is at the core of the RPZ-3.0A, allowing for programmable output voltages ranging from 0.6V to 5.5V. Delivering up to 3A of maximum output current, the RPZ-3.0A is engineered to power a variety of electronic devices and systems efficiently. Safety is paramount, and this module comes equipped with Short Circuit Protection (SCP), Overcurrent Protection (OCP), Overtemperature Protection (OTP), and Undervoltage Lockout (UVLO) features, ensuring the longevity and protection of connected devices. Housed in an incredibly compact 2.5mm x 3.5mm x 1.6mm QFN package, the RPZ-3.0A is designed to maximize space efficiency without compromising performance. The integration of Flip-Chip technology enhances thermal management, ensuring the module operates at peak efficiency even in demanding conditions. With an impressive efficiency rating of up to 92%, the RPZ-3.0A not only meets but exceeds industry standards. This high efficiency not only minimizes energy consumption but also reduces heat generation, contributing to the overall reliability and extended lifespan of the module. The RPZ-3.0A is a non-isolated step-down power module that combines compact design, versatility, and advanced thermal management for a reliable and efficient power solution in a minimal footprint.

  Part Number Vin (V) Main Vout (V) Package Style Current (A)
1 DC/DC, 15.0 W, Single Output, SMD (pinless) RPZ-3.0A-CT
Focus New
2.75 - 6.0 0.6 to 5.5 18-Pad QFN 3.0
2 DC/DC, 15.0 W, Single Output, SMD (pinless) RPZ-3.0A-R
Focus New
2.75 - 6.0 0.6 to 5.5 18-Pad QFN 3.0
Attributes RPZ-3.0A
AC/DC or DC/DC DC/DC
Power (W) 15.0
Isolation Non-Isolated
Vin (V) 2.75 - 6.0
Main Vout (V) 0.6 to 5.5
Nr. of Outputs Single
Iout 1 (mA) 3000.0
Mounting Type SMD (pinless)
Package Style 18-Pad QFN
Length (mm) 2.5
Width (mm) 3.5
Height (mm) 1.6
MIN Operating Temp (°C) -40.0
MAX Operating Temp (°C) 75.0
Current (A) 3.0
Protections OCP, OTP, SCP
Trim Pin Output Voltage Adjustment 0.6-5.5
Control Pin Function Enabled
Directives REACH, RoHS 2+ (10/10)
Warranty 3 Years
Regulation Regulated
  Part Number Power (W) Vout 1 (V) Vin (V) Mounting Type
1 DC/DC, 15.0 W, Single Output, SMD (pinless) RPZ-3.0A-CT
Focus New
15.0 5.0 2.75 - 6.0 SMD (pinless)
2 DC/DC, 15.0 W, Single Output, SMD (pinless) RPZ-3.0A-R
Focus New
15.0 5.0 2.75 - 6.0 SMD (pinless)

Documents & Media

Title Type Date
RPZ-3.0A.pdf Datasheet
RPZ-3.0A_Layout_EMI_Guidelines.pdf PDF Dec 12, 2024
Yes you can. Please refer to the Innoline Application Notes and find our recommended circuits to get a negative output from each series of our switching regulator families.
The datasheets specify the maximum capacitive load. If the combined capacitive load is higher, the converter may go into short circuit protection on power-up.
For switching regulators, but the output capacitor may discharge back into the output of the converter if the input supply is suddenly removed and damage the converter. Fitting protection diodes can avoid this reverse current flow.
No. Switching regulators function differently than linear regulators and this “trick” does not work. They need a very good ground connection to function properly.
All of our DC/DC converters contain a built-in input capacitor filter, so an external capacitor is not required for normal operation, unless specified in the datasheet. An input capacitor may also be required to meet surge requirements or to smooth the DC supply at the point of load. If several DC/DCs are powered from the same rail, then input capacitors placed close to the input pins are recommended.
No external components are needed. An input capacitor is recommended only if the input voltage exceeds 26V. An output capacitor helps reduce output ripple further, but the ripple is relatively low anyway.
The Innoline series all use intelligent controllers that measure the output current on each switching cycle (Current Mode Control). If the output is overloaded, the converter will deliver the over-current until either the converter overheats and shuts itself down (thermal protection) or the load current exceeds the safe limits. If the output is short circuited, the controller shuts down the output drive circuitry. The output condition is continuously monitored and the converter automatically restarts.
Type is not critical. Actually, a lower quality, relatively high ESR capacitor on the input is actually an advantage as its internal resistance helps damp down any switch-on surge oscillations.
A combination of tantalum or electrolytic in parallel with an MLCC on the input or output combines the advantages of both types (high ESR to reduce ringing, low ESR to filter noise).
The R-78 costs more than a linear regulator because it is intelligent. It may look similar to a three-pin linear regulator, but it is far more efficient and inside is a controller chip that protects the converter against overload, over temperature and short circuits. This makes it very robust and hard-to-kill.
Even if the converter itself costs more, the savings that can be made in the primary power supply (because it needs less output current), assembly (because there is no fiddly heatsink, screw, nut and thermal paste to worry about) and inventory (one part rather than 7 parts with the linear regulator + heatsink + mounting + input and output capacitors) mean that the overall power supply cost can be lower with the R-78 than with the ""cheaper"" linear regulator.
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