TPS56428RHLR Texas Instruments Integrated Circuit (Other) In Stock
The TPS56428RHLR is a synchronous step-down DC-DC converter accepting 4.5 V to 18 V input and delivering an adjustable 0.6 V to 7 V output at up to 4 A. It uses D-CAP2 PWM control for fast transient response in a compact 14-pin VQFN package. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 21
- Lifecycle
- ACTIVE
- Datasheet
- TPS56428RHLR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7353(MOQ 250)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4 A synchronous buck output from 4.5 V–18 V input with 0.6 V–7 V adjustable output covers a wide range of point-of-load rails
- D-CAP2 control mode delivers fast load transient response without external compensation components
- 14-pin VQFN-EP package with exposed pad enables low-profile, high-density PCB layouts for space-constrained designs
Applications
The TPS56428RHLR is used in industrial automation, network equipment, and server power trees to generate 1 V, 1.8 V, 2.5 V, or 3.3 V point-of-load rails from a 12 V intermediate bus at up to 4 A. Its wide output range of 0.6 V to 7 V makes it suitable for powering FPGAs, DSPs, and memory ICs that require tightly regulated core and I/O voltages. The device is also deployed in telecommunications infrastructure and embedded computing modules where compact switching regulators with fast transient response are required.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | OUTPUT VOLTAGE RANGE IS FROM 0.6 TO 7V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 18V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PQCC-N14 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 4A |
| Output Voltage-Max | 5.5V |
| Output Voltage-Min | 0.6V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC14/18,.14SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Current-Max (Isup) | 0.35mA |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 650kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS56428RHLR:
Frequently Asked Questions
What output voltage range can be programmed on the TPS56428RHLR?
The TPS56428RHLR supports an adjustable output range of 0.6 V to 7 V, set by an external resistor divider. This allows a single part to cover common point-of-load rails from 0.9 V DDR memory to 3.3 V and 5 V logic supply requirements in the same system.
How does TPS56428RHLR handle fast load transients in FPGA power supply designs?
The D-CAP2 constant on-time control in TPS56428RHLR reacts within one switching cycle to load steps, recovering within 50 µs at 4 A. No external compensation network is needed, simplifying board design and reducing output capacitance compared to traditional voltage-mode PWM controllers.
What is the maximum input voltage for TPS56428RHLR and which bus voltages does it support?
The TPS56428RHLR accepts 4.5 V to 18 V input, covering 5 V, 9 V, 12 V, and 15 V supply rails commonly found in industrial and telecom equipment. The 18 V maximum provides sufficient headroom above a 12 V nominal bus to accommodate supply transients and startup overshoot conditions.
How compact is the TPS56428RHLR footprint for board space-constrained designs?
The TPS56428RHLR uses a 14-pin VQFN with exposed pad measuring approximately 3 mm × 3 mm. Combined with the ability to use small external inductors at the internal switching frequency, the complete solution fits within a 100 mm² area, suitable for tight power delivery network layouts on multi-layer PCBs.
Related Guides
How to Choose a 3528 SMD Indicator LED for Blue Status Lighting: Selection Guide
A practical 3528 SMD indicator LED selection guide using 150141BS73100 and related Wurth 150141 variants for blue status lighting.
Jul 5, 2026
BAS70KFILM Design Guide for Low-Leakage Signal Clamping and RF Detector Inputs
Practical BAS70KFILM design guidance for signal clamps, RF detector inputs, leakage control, capacitance, layout, and sourcing alternatives.
Jul 5, 2026
How to Choose a BAS70 Schottky Diode for Signal Clamping: Selection Guide
A practical BAS70KFILM and BAS70-family Schottky diode selection guide for signal clamping, RF detection, leakage, and topology choices.
Jul 4, 2026
AMC1202DWVR Design Guide for Isolated Current Sensing
Practical AMC1202DWVR design guide covering shunt sizing, isolation layout, input filtering, ADC scaling, and sourcing choices.
Jul 4, 2026
Why Buy from FindMyChip
About Texas Instruments
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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $0.8536 | $213.39 |
| 500+ | $0.8206 | $410.28 |
| 1000+ | $0.8124 | $812.43 |
| 3000+ | $0.7599 | $2279.67 |
| 6000+ | $0.7435 | $4460.94 |
| 9000+ | $0.7353 | $6617.43 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”