TPS542A52RJMR Texas Instruments Integrated Circuit (Other) In Stock
TPS542A52RJMR is a 4 A synchronous step-down converter with 4 V to 18 V input range and voltage-mode PWM plus PFM control. It delivers regulated output with high efficiency across load conditions. Available from $2.50 with worldwide shipping and in stock.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 37
- Lifecycle
- ACTIVE
- Datasheet
- TPS542A52RJMR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.1022(MOQ 25)
- Temp Range
- -40.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4 A continuous output current with voltage-mode PWM and PFM control for high efficiency across the full load range
- Wide 4 V to 18 V input voltage range supports 5 V, 12 V, and 15 V rail applications
- Compact RJM package reduces PCB footprint for space-constrained power supply designs
Applications
TPS542A52RJMR is well suited for point-of-load DC-DC conversion in industrial equipment, telecom infrastructure, and server power supplies operating from 12 V rails. Its PFM mode improves efficiency at light loads, making it useful in always-on IoT gateways and embedded computing modules. The 4 V to 18 V input range also accommodates automotive-adjacent 12 V battery-backed systems.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 2020-10-01 |
| YTEOL | 15 |
| Additional Feature | PFM CONROL ALSO POSSIBLE |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 18V |
| Input Voltage-Min | 4V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-XBCC-N33 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 15A |
| Output Voltage-Max | 5.5V |
| Output Voltage-Min | 0.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC33(UNSPEC) |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 2200kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Position | BOTTOM |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum output current TPS542A52RJMR can supply continuously?
TPS542A52RJMR supports a continuous output current of 4 A. This rating is maintained across its 4 V to 18 V input voltage range, making it suitable for powering microcontrollers, FPGAs, and DDR memory rails that require stable current delivery under varying load conditions.
When should a designer choose PFM mode over PWM mode on TPS542A52RJMR?
PFM mode on TPS542A52RJMR is advantageous at light loads below approximately 10% of the 4 A rated current, where switching losses in fixed-frequency PWM would reduce efficiency. Switching frequency drops dynamically, lowering quiescent losses in standby or sleep states of IoT edge devices operating from a 12 V source.
Which input voltage rails are compatible with TPS542A52RJMR in industrial designs?
TPS542A52RJMR accepts input voltages from 4 V to 18 V, covering standard 5 V, 12 V, and 15 V industrial rails. This range accommodates 24 V bus applications when preceded by a pre-regulator, and supports 12 V nominal operation found in factory automation controllers and embedded industrial PCs.
How does TPS542A52RJMR compare to a 3 A buck converter for a 12 V-to-3.3 V conversion stage?
TPS542A52RJMR provides 4 A versus a 3 A alternative, giving 33% more headroom for transient load spikes on a 3.3 V rail without triggering over-current protection. The voltage-mode PWM control also offers tighter output regulation, which is critical for sensitive analog circuits and DSP cores requiring ±2% voltage accuracy.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 25+ | $5.1428 | $128.57 |
| 100+ | $4.6890 | $468.90 |
| 250+ | $4.5487 | $1137.17 |
| 500+ | $4.2400 | $2120.00 |
| 1000+ | $4.1900 | $4190.00 |
| 3000+ | $4.1021 | $12306.45 |
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