TPSM5601R5 - 60V In, 1.5A Step-Down Power Module | TI
MPN: TPSM5601R5 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.95 | $4.95 |
| 10 | $4.45 | $44.50 |
| 100 | $3.85 | $385.00 |
| 500 | $3.35 | $1,675.00 |
| 1,000 | $2.95 | $2,950.00 |
Drop-in alternatives for TPSM5601R5 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
TPSM5601R5S
β Drop-Inπ Reference alternative (not in catalog)
TPSM5601R5H
β Drop-Inπ Reference alternative (not in catalog)
TPSM5601R5HRDAR
β‘ Same Packageπ Reference alternative (not in catalog)
TPSM5601R5 Maximum Ratings & Electrical Characteristics
| Topology | Step-down (buck) DC/DC power module |
| Input Voltage Range | 4.2 V to 60 V |
| Output Voltage Range | 1.0 V to 6 V (adjustable) |
| Output Current | 1.5 A |
| Switching Frequency | 400 kHz (fixed) |
| Integrated Components | Power MOSFETs, shielded inductor, passives |
| Package | 15-pin Enhanced HotRod QFN, 5 mm x 5.5 mm x 4 mm |
| External Component Count | As few as 4 |
| Operating Junction Temperature | -40C to +125C |
| Mounting Type | Surface Mount |
| Output Type | Adjustable (single resistor divider) |
| Isolation | Non-Isolated PoL Module |
| Package Thermal Feature | Thermally enhanced, single large thermal pad |
| RoHS Status | Compliant |
| Evaluation Module | TPSM5601R5EVM |
TPSM5601R5 Pin Configuration
| Pin 1 | VIN β Input supply voltage, 4.2 V to 60 V |
| Pin 2 | VIN β Input supply voltage |
| Pin 3 | EN β Enable pin for device on/off control |
| Pin 4 | NC β No connection |
| Pin 5 | SW β Switching node (internal connection) |
| Pin 6 | DNC β Do not connect |
| Pin 7 | NC β No connection |
| Pin 8 | VOUT β Regulated output voltage sense |
| Pin 9 | FB/VSENSE β Feedback / output voltage set point |
| Pin 10 | AGND β Analog ground |
| Pin 11 | PGND β Power ground |
| Pin 12 | PGND β Power ground |
| Pin 13 | SS/TRACK or NC β Soft start or no connection per datasheet section 6 |
| Pin 14 | NC β No connection |
| Pin 15 | Thermal Pad β Large thermal pad, connect to ground plane with vias |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TPSM5601R5 is suitable for 6 applications: 24-V and 48-V Industrial Bus Power, Factory Automation and PLC I/O, Test and Measurement Point-of-Load, Motor Drive Auxiliary Supplies, Networking and Communication Equipment, Battery-Powered and Portable Industrial Instruments.
24-V and 48-V Industrial Bus Power
The TPSM5601R5 fits industrial 24-V and 48-V bus point-of-load conversion because its 4.2-V to 60-V input range absorbs rail transients that would damage 40-V-class converters. Producing an adjustable 1-V to 6-V rail at up to 1.5 A, it powers logic, sensors, and communication ICs directly from the industrial bus. With only four external components and integrated compensation, a regulated auxiliary rail can be implemented in a small footprint without magnetics design, and the 400-kHz fixed switching frequency keeps filter sizing predictable.
Recommended
Factory Automation and PLC I/O
PLC I/O modules need compact, robust step-down conversion from 24-V field power. The TPSM5601R5s integrated shielded inductor and Enhanced HotRod QFN reduce EMI and board area, while its -40C to +125C junction range matches cabinet-mounted electronics. Its 1.5-A output powers microcontroller and transceiver rails (for example TMS320F28034QPNTQ1 DSP-based control boards), and the enable pin supports power sequencing within multi-rail I/O subsystems, improving fault isolation and inrush control.
Recommended
Test and Measurement Point-of-Load
Bench instruments and modular test systems often run from 24-V or 48-V backplanes and need clean local rails. The TPSM5601R5 provides 1-V to 6-V adjustment via one resistor divider, letting one PCB design serve multiple rail voltages. The integrated shielded inductor minimizes radiated noise that could couple into sensitive measurement front-ends such as the ADS8519IDBR-Q1 ADC, and the thermally enhanced package sustains 1.5-A loads without heatsinks, simplifying stackable module construction.
Recommended
Motor Drive Auxiliary Supplies
Motor-drive gate-driver and controller stages require bias rails derived from high-voltage DC links. The TPSM5601R5 steps down up to 60 V to 1-V to 6-V rails at 1.5 A, suitable for supplying gate-driver bias circuits such as UCC21520Q-Q1-based stages on 48-V drive platforms. The modules integrated MOSFETs and compensation remove switching-design risk from gate-bias supplies, and its compact 5 x 5.5-mm QFN fits dense power boards near the gate drivers, shortening high-current loops.
Recommended
Networking and Communication Equipment
Routers, switches, and base-station hardware distribute -48-V or 60-V-rated intermediate buses. The TPSM5601R5 converts these inputs to low-voltage rails for PHYs, FPGAs, and memory at up to 1.5 A. For noise-sensitive designs, the pin-compatible TPSM5601R5S spread-spectrum variant reduces conducted EMI peaks at the 400-kHz switching frequency, easing CISPR-style compliance testing of the communication system power tree.
Recommended
Battery-Powered and Portable Industrial Instruments
Handheld and battery-backed industrial instruments benefit from the modules wide 4.2-V input floor, supporting single-cell li-ion packs as well as higher-voltage battery stacks up to 60 V. The single-resistor output adjustment lets one design cover multiple battery chemistries, and the integrated inductor keeps the solution height at 4 mm for enclosure-constrained products. With four external components total, the BOM and sourcing risk stay minimal for volume portable products.
Recommended
Recommended Products Summary
Engineering reference data for TPSM5601R5 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPSM5601R5S | TPSM5601R5H | TPSM5601R5HRDAR |
|---|---|---|---|---|
| Package | 15-pin Enhanced HotRod QFN, 5 x 5.5 x 4 mm | 15-pin Enhanced HotRod QFN - same | 15-pin Enhanced HotRod QFN - same | 15-pin Enhanced HotRod QFN - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Input Voltage Range | 4.2 V to 60 V | 4.2 V to 60 V | 4.2 V to 60 V | 4.2 V to 60 V |
| Output Voltage Range | 1 V to 6 V | 1 V to 6 V | 1 V to 6 V | 1 V to 16 V |
| Output Current | 1.5 A | 1.5 A | 1.5 A | 1.5 A |
| Switching Frequency | 400 kHz fixed | 400 kHz with spread spectrum | 400 kHz (S option: spread spectrum) | 400 kHz fixed |
| Operating Temperature | -40C to +125C junction | -40C to +125C | down to -55C (EXT option) | -40C to +125C |
| EMI Feature | Standard (no spread spectrum) | Spread spectrum | Optional spread spectrum (S) | Standard |
Key Differentiators
- 60-V input rating with integrated magnetics (vs TPS54360QDDARQ1 (discrete buck))
- Spread-spectrum EMI option without PCB change (vs TPSM5601R5S)
- Extended cold-temperature operation available (vs TPSM5601R5H)
Design Notes
The Enhanced HotRod QFN relies on the PCB for heat dissipation. Connect the single large thermal pad to a solid ground pour and add a via array (typically 5x5 grid of 0.3-mm vias) directly under the pad. At VIN = 48 V and VOUT = 5 V at 1.5 A, conduction losses rise with duty cycle extremes; verify junction temperature stays below +125C using the thermal curves in the TI datasheet for your copper area.
Keep the input ceramic capacitor loop as small as possible between VIN pins and PGND. The output voltage set point uses a single resistor divider on the FB pin - place it close to the pin and route away from the SW node to avoid switching-noise pickup. All perimeter pins are accessible for inspection, aiding AOI in manufacturing.
The fixed 400-kHz switching frequency concentrates EMI at a predictable harmonic set. If conducted emissions fail near this band, substitute the pin-compatible TPSM5601R5S spread-spectrum version without a PCB change. Keep sensitive analog routing away from the SW node and use the shielded internal inductors advantage by not routing signals under the module.
Compliance Information
RoHS compliance per TI product listing. AEC-Q100 qualification status not stated in verified data; consult TI product page for automotive qualification details.
