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
What are the key features of TPS56428RHLR?
- 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
What is TPS56428RHLR used for?
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.
What are the specifications of TPS56428RHLR?
| 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 |
Where can I find the TPS56428RHLR datasheet?
TPS56428RHLR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS56428RHLR?
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.
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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.
More from Texas Instruments
| 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 |
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