TPS5420DRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TPS5420DRG4 is a 2A wide-input-range step-down SWIFT DC-DC switching regulator from Texas Instruments using voltage-mode PWM control with a 5.5V to 36V input range for versatile industrial and automotive power conversion. It integrates a high-side MOSFET in an 8-pin SOP package. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TPS5420DRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide 5.5V to 36V input voltage range covers 12V, 24V, and 28V industrial bus standards in a single design
- 2A continuous output current with integrated high-side MOSFET minimizes external component count and BOM cost
- Voltage-mode PWM control with internal compensation simplifies loop design and reduces time-to-market
- Adjustable output voltage and switching frequency allow optimization for efficiency, size, and EMI in diverse applications
Applications
The TPS5420DRG4 is widely used as a point-of-load DC-DC converter in industrial automation equipment, motor drive power supplies, and distributed power architectures operating from 12V or 24V bus rails. Its 36V maximum input voltage makes it suitable for automotive 24V systems, industrial 28V avionics bus, and battery-powered equipment with wide input variation. The device also serves as a pre-regulator in multi-rail power supplies, converting a high input bus voltage down to 5V, 3.3V, or custom voltages for microcontrollers, FPGAs, and analog peripherals.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 36V |
| Input Voltage-Min | 5.5V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 2A |
| Output Voltage-Max | 31V |
| Output Voltage-Min | 1.23V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 500kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS5420DRG4:
Switching Regulator, Voltage-mode, 2A, 500kHz Switching Freq-Max, BICMOS, PDSO8
Switching Regulator, Voltage-mode, 2A, 500kHz Switching Freq-Max, BICMOS, PDSO8
Switching Regulator, Voltage-mode, 2A, 500kHz Switching Freq-Max, BICMOS, PDSO8
Switching Regulator, Voltage-mode, 2A, 500kHz Switching Freq-Max, PDSO8
Switching Regulator, Voltage-mode, 2A, 500kHz Switching Freq-Max, PDSO8
Frequently Asked Questions
What is the input voltage range and maximum output current of the TPS5420DRG4?
The TPS5420DRG4 accepts an input voltage from 5.5V to 36V and provides up to 2A continuous output current. This wide input range allows a single regulator design to work from 12V automotive batteries, 24V industrial power rails, and unregulated wall adapter outputs, making it highly versatile for diverse embedded power supply designs.
Does the TPS5420DRG4 require an external switching MOSFET?
No, the TPS5420DRG4 integrates an internal high-side MOSFET switch, eliminating the need for an external switching transistor. This integration reduces the total component count, simplifies PCB layout, and lowers overall BOM cost compared to controller-only solutions. An external diode (or synchronous MOSFET) is still required for the low-side rectification path.
What control mode does the TPS5420DRG4 use and how is the output voltage set?
The TPS5420DRG4 uses voltage-mode pulse width modulation (PWM) control for regulating the output voltage. The output voltage is set by an external resistor divider connected to the feedback pin, allowing the designer to program any output voltage within the device's adjustable range. Internal compensation simplifies the feedback loop design, reducing the number of external components needed.
What package does the TPS5420DRG4 come in and what are its thermal characteristics?
The TPS5420DRG4 is packaged in an 8-pin SOP (Small Outline Package), JESD-30 code R-PDSO-G8, which is a compact surface-mount package suitable for reflow soldering. The SOP package provides moderate thermal performance; for high ambient temperature or high-duty-cycle applications, adequate PCB copper area and thermal vias are recommended to maintain junction temperature within rated limits at the full 2A output.
What protection features are built into the TPS5420DRG4?
The TPS5420DRG4 includes thermal shutdown protection that disables the device if the junction temperature exceeds a safe limit, preventing damage from overload or inadequate cooling. It also features overcurrent protection through cycle-by-cycle current limiting on the integrated MOSFET switch, protecting against output short-circuit conditions. Under-voltage lockout (UVLO) prevents operation when the input voltage falls below the 5.5V minimum threshold.
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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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