LM5013DDART - 100V 3.5A Non-Sync Buck DC/DC Converter | TI
N.º de pieza: LM5013DDART ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $2.1 | $2,10 |
| 10 | $1.89 | $18,90 |
| 100 | $1.66 | $166,00 |
| 500 | $1.42 | $710,00 |
| 1.000 | $1.19 | $1.190,00 |
LM5013DDART Descripción general
A buck converter (also called a step-down switching regulator) is a switch-mode power supply topology that uses an inductor as the primary energy-storage element and a transistor switch to chop the input voltage, then filters it with the LC network to produce a lower, regulated DC output. The buck converter belongs to the broader family of DC-DC converters within the voltage-regulator hierarchy: DC-DC converter -> switching regulator -> power management IC -> semiconductor. Because the LM5013 integrates the high-side switch and uses a non-synchronous rectifier (external diode), designers trade synchronous-rectifier efficiency for simplified BOM and lower cost at high input voltages.
Key specifications include 6 V to 100 V input range, 1.2 V adjustable output, 3.5 A continuous load current, 50 ns minimum on-time, integrated 3.5 ms internal soft-start, input UVLO with thermal shutdown, and peak current-limit protection. The SO PowerPAD package gives a low thermal resistance (approximately 40 C/W) so a moderate copper pour supports full 3.5-A operation. The junction-temperature range of -40 C to +125 C supports industrial and automotive-grade designs (the LM5013-Q1 automotive variant is also available).
Architecturally, the LM5013 uses peak-current-mode control for fast line transient response and simple loop compensation. A 50 ns minimum on-time enables direct step-down from 100 V to 1.2 V at high switching frequency, reducing solution size. The internal 3.5 ms soft-start eliminates inrush current at power-up and simplifies sequencing in multi-rail systems.
Typical applications include industrial 24-V and 48-V bus regulation, factory-automation PLC I/O rails, automotive body-electronics (via the LM5013-Q1), PoE powered-device auxiliary rails, battery-charging front ends, and high-voltage LED lighting. The wide VIN makes it a natural fit anywhere a high-voltage rail must be dropped to a low-voltage logic or analog supply.
When designing with the LM5013, choose an external Schottky diode with reverse voltage at least 1.3x VIN(max) and sized to carry the full load current plus ripple. Use a low-ESR ceramic input capacitor to filter the switching spikes, and route the SW node as a small, tight loop to minimize EMI.
Alternativas directas para LM5013DDART — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con LM5013DDART (mismo factor de forma y huella) — difiere en Package, Topology, Input Voltage Range, Junction Temperature Range, Output Voltage Range.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
LM5013DDAR
✅ Sustitución directa✓ En stock
$0.9 / unidad
Ver hoja de datos →LM5013Q1DDARQ1
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
LM5012Q1DDARQ1
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
LMR16006XDDCR
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
TPS54360DDAR
✅ Sustitución directa✓ En stock
$0.95 / unidad
Ver hoja de datos →LM5013DDART Valores máximos y características eléctricas
| Topología | Non-synchronous buck (step-down) |
| Rango de tensión de entrada | 6 V to 100 V |
| Continuous Output Current | 3.5 A |
| Minimum Controllable On-Time | 50 ns |
| Internal Soft-Start | 3.5 ms (fixed) |
| Control Mode | Peak current mode |
| Input UVLO | Yes |
| Peak Current-Limit Protection | Yes |
| Apagado térmico | Yes |
| Junction Temperature Range | -40 C to +125 C |
| Encapsulado | 8-Pin SO PowerPAD (DDA) |
| Tipo de montaje | Surface Mount |
| Estado RoHS | Compliant |
Configuración de pines de LM5013DDART
| Pin 1 | VIN — Input supply voltage (6 V to 100 V) |
| Pin 2 | EN — Enable input (active high) |
| Pin 3 | RT/SS — Resistor timing / soft-start control |
| Pin 4 | FB — Feedback voltage input (internal reference 1.2 V) |
| Pin 5 | COMP — Compensation network node |
| Pin 6 | SW — Switch node (connects to external inductor and diode) |
| Pin 7 | PGND — Power ground return for switch current |
| Pin 8 | GND — Analog ground reference |
Aplicaciones típicas
LM5013DDART es adecuado para 6 aplicacións: Industrial 24-V and 48-V Bus Regulation, Factory Automation PLC I/O Rails, Automotive Body Electronics (LM5013-Q1), PoE Powered-Device Auxiliary Rails, Battery Charging Front Ends, High-Voltage LED Lighting.
Industrial 24-V and 48-V Bus Regulation
The LM5013DDART's 100-V input range and 3.5-A output capability suit industrial 24-V and 48-V bus rails directly. With VIN up to 100 V the part rides through 48-V telecom transients and inductive load spikes without external surge suppression. The 50 ns minimum on-time enables 48-V to 3.3-V conversion at high switching frequency, reducing inductor size and BOM cost.
Recomendado
Factory Automation PLC I/O Rails
PLC I/O modules running from 24-V industrial rails benefit from the LM5013DDART's wide VIN and integrated protections. The 3.5-A continuous output supports multi-channel relay drivers and analog front-ends; input UVLO and peak current-limit protect against brownouts and short circuits. Internal 3.5 ms soft-start eliminates inrush on hot-plug events common in factory cabinets.
Recomendado
Automotive Body Electronics (LM5013-Q1)
The LM5013-Q1 (AEC-Q100 variant of the same die as the LM5013DDART) powers body-electronics loads from 12-V and 24-V automotive batteries. Cold-crank and load-dump transients exceed 60 V, which the 100-V input range handles without external TVS clamps. The 3.5-A output powers infotainment, lighting, and sensor clusters directly with automotive-qualified reliability.
Recomendado
PoE Powered-Device Auxiliary Rails
PoE powered devices receive up to 57 V from the Ethernet cable, and the LM5013DDART's 100-V VIN handles PoE+ rails with margin. Designers step down to 12 V or 5 V for downstream point-of-load regulators; the 3.5-A output supports PoE+ class-4 powered devices and auxiliary functions. Non-synchronous topology keeps BOM cost low for cost-sensitive PD designs.
Recomendado
Battery Charging Front Ends
The LM5013DDART functions as a constant-voltage front end for lead-acid or Li-ion battery chargers when paired with a downstream current-mode controller. The 100-V input accepts 48-V telecom or 72-V industrial battery stacks directly. Internal protections including UVLO, peak current-limit, and thermal shutdown add a layer of robustness required for unattended battery systems.
Recomendado
High-Voltage LED Lighting
High-voltage LED strings driven from 48-V or 24-V industrial rails benefit from the LM5013DDART's wide VIN. The buck topology produces a constant current when paired with a sense resistor, and 3.5 A output drives high-brightness LED arrays in commercial and industrial fixtures. The non-synchronous architecture keeps the BOM small and inexpensive for cost-driven lighting designs.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para LM5013DDART — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | LM5013DDAR | LM5013Q1DDARQ1 | LM5012Q1DDARQ1 | LMR16006XDDCR | TPS54360DDA |
|---|---|---|---|---|---|---|
| Package | 8-SO PowerPAD (DDA) | 8-SO PowerPAD (DDA) - same | 8-SO PowerPAD (DDA) - same | 8-SO PowerPAD (DDA) - same | 8-SO PowerPAD (DDA) - same | 8-SO PowerPAD (DDA) - same |
| Brand | Texas Instruments | Texas Instruments - same | Texas Instruments - same | Texas Instruments - same | Texas Instruments - same | Texas Instruments - same |
| Input Voltage Range | 6 V to 100 V | 6 V to 100 V - same | 6 V to 100 V - same | 6 V to 100 V - same | 4 V to 60 V - narrower | 4.5 V to 60 V - narrower |
| Continuous Output Current | 3.5 A | 3.5 A - same | 3.5 A - same | 2.5 A - lower (-29%) | 0.6 A - much lower | 3.5 A - same |
| Automotive Grade (AEC-Q100) | No (commercial) | No - same | Yes - AEC-Q100 | Yes - AEC-Q100 | No | No (TPS54360-Q1 is) |
| Topology | Non-synchronous buck | Non-synchronous buck - same | Non-synchronous buck - same | Non-synchronous buck - same | Non-synchronous buck - same | Non-synchronous buck - same |
| Soft-Start | Internal 3.5 ms | Internal 3.5 ms - same | Internal 3.5 ms - same | Internal 3.5 ms - same | Internal | Internal (SS pin) |
Diferenciadores clave
- Highest input voltage (100 V) in a non-synchronous buck family (frente a TPS54360DDA)
- Automotive-grade variant available in same footprint (frente a TPS54360DDA)
- Lower output current option in same footprint for cost optimization (frente a LM5012Q1DDARQ1)
Notas de diseño
Estimated: at VIN=48 V, VOUT=5 V, IOUT=3.5 A the LM5013DDART dissipates approximately 2 W in the high-side switch (assuming 90% efficiency). Keep the input capacitor, Schottky diode, and SW-node copper area as a tight, low-inductance loop to reduce ringing; place the input bypass capacitor within 5 mm of the VIN and PGND pins and use a low-ESR ceramic or polymer part rated for 100 V minimum.
The DDA SO PowerPAD package requires a sufficiently large copper pour on the top layer (at least 1 square inch of 2 oz copper) plus thermal vias connecting to inner layers for full 3.5-A output at high VIN-VOUT deltas. Per the TI LM5013 datasheet, the exposed pad is the primary thermal path and must be soldered to the PCB thermal land for the rated performance.
Choose a Schottky diode rated at 1.3x VIN(max) (so 130 V minimum for 100-V input) and sized to carry full load current plus ripple - using a 60-V or 100-V part at high VIN is the most common cause of field failures. Per the TI LM5013 datasheet, also do not omit the boot capacitor between BOOT and SW pins, and ensure the EN pin is not left floating - tie it to VIN through a resistor divider to set the UVLO threshold.
Información de cumplimiento
RoHS and REACH compliant per TI product page. LM5013DDART is commercial grade; choose LM5013Q1DDARQ1 for AEC-Q100 automotive.
