TPS54560QDDAQ1 - 60V 5A Automotive Step-Down DC-DC | Texas Instruments
부품 번호: TPS54560QDDAQ1 ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $4.95 | $4.95 |
| 10 | $4.42 | $44.20 |
| 100 | $3.74 | $374.00 |
| 500 | $3.28 | $1,640.00 |
| 1,000 | $2.86 | $2,860.00 |
| 3,000 | $2.49 | $7,470.00 |
TPS54560QDDAQ1 개요
A buck (step-down) DC-DC converter is a switch-mode power supply (SMPS) topology that uses an integrated high-side switch, an external inductor, and an output capacitor to convert a higher DC input voltage into a lower regulated DC output voltage. Buck converters fall within the broader DC-DC switching regulator family, which itself is a sub-category of power management integrated circuits (PMICs). Compared with linear regulators, buck converters achieve much higher efficiency (>85%) at large VIN-to-VOUT ratios by storing energy in a magnetic field rather than dissipating it as heat, making them the preferred topology for automotive, industrial, and telecom bus-power applications.
Key features of the TPS54560QDDAQ1 include 4.5V–60V input (65V transient tolerant), 5A continuous output, integrated 92 mΩ high-side MOSFET, 146 µA typical quiescent current (Eco-Mode pulse-skipping), 2 µA shutdown supply current, current-mode control for simple external compensation, internal soft-start, adjustable switching frequency up to 2.5 MHz, and cycle-by-cycle over-current protection. The 8-pin PowerSOIC package with thermal pad keeps the 31.6 °C/W θJA low enough for sustained 5A operation on a 1 sq-in copper pour.
The device uses TI's current-mode control architecture with internal slope compensation, providing simple external compensation, flexible component selection, and excellent line/load transient response. Eco-Mode pulse-skipping extends light-load efficiency by turning the high-side MOSFET off until the output capacitor needs recharging, dropping Iq to 146 µA. The internal high-side MOSFET eliminates external switches and most bootstrap components, reducing BOM count.
Typical applications include automotive infotainment, ADAS sensor power, body electronics (lighting, BCM), industrial 24V/48V bus conversion, and telecom/POE auxiliary rails. Its 65V load-dump tolerance and AEC-Q100 Grade-1 qualification make it particularly suited for 12V/24V automotive systems.
When designing with this part, choose the switching frequency to balance efficiency and solution size: 2.5 MHz enables a small inductor but reduces efficiency; 500 kHz maximizes efficiency at the cost of inductor size. The exposed thermal pad must be soldered to a 1+ sq-in copper pour for rated 5A operation.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single, citable reference for design-in and second-sourcing decisions.
드롭인 대체품: TPS54560QDDAQ1 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
TPS54560BDDAR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
TPS54560BQDDAQ1
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
TPS54560DDA
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
TPS54561DPRT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
TPS54541DPRR
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
TPS54560QDDAQ1 최대 정격 & 전기적 특성
| 토폴로지 | Buck (Step-Down) |
| 입력 전압 범위 | 4.5 V to 60 V |
| Transient Input Tolerance | 65 V (per ISO 7637 load dump) |
| 출력 전압 범위 | 0.8 V to 58.8 V (adjustable) |
| Continuous Output Current | 5 A |
| Integrated High-Side MOSFET RDS(on) | 92 mΩ |
| Switching Frequency Range | 100 kHz to 2.5 MHz (adjustable) |
| Quiescent Current (typ, Eco-Mode) | 146 µA |
| Shutdown Supply Current | 2 µA |
| Control Mode | Current-Mode with internal slope compensation |
| Operating Temperature Range (TJ) | -40 °C to +150 °C |
| 패키지 | 8-Pin PowerPAD HSOP (DDA) 3.9 mm body |
| 실장 유형 | Surface Mount (SO PowerPAD) |
| MSL 레벨 | 2 (1 year) |
| AEC-Q100 Qualification | Qualified (Grade 1: -40 °C to +125 °C ambient) |
| RoHS 상태 | Compliant |
| Lead-Free / Halogen-Free | Yes / Yes |
TPS54560QDDAQ1 핀 구성
| 핀 1 | BOOT — Bootstrap capacitor connection for high-side gate drive |
| 핀 2 | VIN — Input supply voltage (4.5V to 60V) |
| 핀 3 | EN — Enable (active-high, internal pull-up) |
| 핀 4 | SS/TR — Soft-start / tracking programming pin |
| 핀 5 | RT/CLK — Resistor-timing / external clock synchronization |
| 핀 6 | COMP — Error-amplifier output / compensation network |
| 핀 7 | FB — Voltage feedback (0.8V internal reference) |
| 핀 8 | PGND — Power ground return for internal MOSFET |
일반적인 애플리케이션
TPS54560QDDAQ1 적합 용도: 7 애플리케이션s: Automotive Infotainment Power, ADAS Sensor Power Rails, Body Control Module (BCM) Drivers, Industrial 24V Bus Conversion, 48V Telecom and POE Auxiliary Rails, USB-PD and Power Bank Source, HVAC and White-Goods Motor Control.
Automotive Infotainment Power
The TPS54560QDDAQ1's 4.5V–60V input range and 65V load-dump tolerance per ISO 7637 make it ideal for 12V automotive infotainment head units. It can supply 5V at 5A to power a Cortex-A application processor, audio DAC, and display backlight driver from the vehicle's 12V battery rail. With AEC-Q100 Grade-1 qualification and the integrated 92 mΩ high-side MOSFET, it eliminates the external MOSFET and survives cold-crank dips down to 6V. The 8-pin PowerPAD HSOP package keeps the footprint compact enough for behind-the-dash modules, while Eco-Mode reduces quiescent current to 146 µA for key-off standby. Place input ceramic capacitors within 5 mm of the VIN pin and connect the PowerPAD to a 1+ sq-in copper pour for rated 5A output.
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ADAS Sensor Power Rails
The TPS54560QDDAQ1 is well-suited for ADAS camera, radar, and lidar power rails, where 5A output at low noise is required from a 12V or 24V automotive bus. The AEC-Q100 Grade-1 qualification is mandatory for ADAS ECUs, and the 2.5 MHz maximum switching frequency enables a small inductor/capacitor footprint that fits in camera-module PCBs. Operating at 1 MHz typically gives >90% efficiency at 12V→3.3V/3A, dissipating only 1.1W on the integrated MOSFET - well within the PowerPAD thermal envelope. The 2 µA shutdown current and 146 µA quiescent current support low-power standby states required for always-on ADAS functions. Use a feedforward capacitor on the FB pin for tighter load-transient response at the sensor AFE.
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Body Control Module (BCM) Drivers
The TPS54560QDDAQ1 powers BCM subsystems for lighting, door modules, and seat controllers from the 12V automotive battery. Its 60V continuous rating and 65V transient tolerance handle jump-start and load-dump events per ISO 7637 without requiring upstream TVS protection. The 5A output comfortably drives multiple LED strings or H-bridge motor pre-drivers at once. AEC-Q100 Grade-1 qualification is required for OEM body electronics, and the integrated high-side MOSFET reduces BOM count compared with controller+external FET solutions. Program the SS/TR pin with a 100 nF capacitor for 1 ms soft-start, preventing inrush on the BCM's large input bulk capacitor bank during cold-crank recovery.
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Industrial 24V Bus Conversion
The TPS54560QDDAQ1's 60V max input directly accepts a 24V industrial bus (18V–32V nominal), making it ideal for factory-automation PLCs, motor-control auxiliary rails, and sensor-supply buses. It delivers up to 5A at 5V (25W output) with >90% efficiency at 24V→5V/2 MHz, keeping the 8-pin PowerPAD package within thermal limits on a 0.5 sq-in copper pour. The current-mode control and external compensation allow simple loop tuning for a wide range of output LC filter choices. The 65V transient rating also tolerates the inductive kickbacks common when switching 24V solenoids or relays on the same PCB. Add a 100 µF aluminum-polymer input capacitor for the 24V bus's lower-frequency ripple rejection.
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48V Telecom and POE Auxiliary Rails
The TPS54560QDDAQ1 operates directly from 48V telecom and POE rails without derating, since its 60V continuous rating provides 12V of headroom above the 48V nominal and 6V above the 54V POE+ maximum. It generates a 1.2V or 3.3V rail at up to 5A for DSPs, FPGAs, or network PHYs in telecom line cards. The 2.5 MHz switching option enables a sub-30 mm² solution size for blade-server form factors. AEC-Q100 qualification is overkill for telecom but provides robustness for outdoor cabinet installations. Per TI datasheet applications section, the TPS54560QDDAQ1 has been validated at 48V→3.3V/4A, dissipating 2.6W on the integrated MOSFET with 91% efficiency.
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USB-PD and Power Bank Source
The TPS54560QDDAQ1 can act as the buck stage for a USB-PD source or multi-cell battery power bank, accepting a 5V–36V input (USB-PD adapter output or 2S–7S Li-ion stack) and delivering 5V/3A or 9V/2A to a downstream load. The 2 µA shutdown current is excellent for battery-powered designs with power-button control, and Eco-Mode reduces quiescent current to 146 µA in standby. The integrated high-side MOSFET eliminates the need for an external switching FET, saving PCB area in compact power-bank enclosures. Note: for synchronous rectification above 3A to achieve peak efficiency >93%, the TPS54360 (synchronous version) is preferred; the TPS54560QDDAQ1 is acceptable for cost-sensitive designs.
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HVAC and White-Goods Motor Control
The TPS54560QDDAQ1 supplies low-voltage logic rails inside HVAC, refrigerator, and washing-machine motor-control boards where the rectified mains bus can reach 380V DC and step down to 24V or 12V through an intermediate rail. From the 24V intermediate bus, the TPS54560QDDAQ1 delivers 5V/3A to a microcontroller and gate-driver IC. Its 65V load-dump tolerance survives the voltage transients on the intermediate bus when the motor's PFC stage commutates. The integrated MOSFET reduces BOM count compared with controller+discrete FET solutions, critical for cost-sensitive appliance designs. Use the EN pin with a 100 kΩ pull-up to VIN for default-on behavior in always-powered appliances.
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추천 제품 요약
엔지니어링 참조 데이터: TPS54560QDDAQ1 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | TPS54560BDDAR | TPS54560BQDDAQ1 | TPS54560DDA | TPS54561DPRT | TPS54541DPRR |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 8-Pin PowerPAD HSOP (DDA) | 8-Pin PowerPAD HSOP (DDA) - same | 8-Pin PowerPAD HSOP (DDA) - same | 8-Pin PowerPAD HSOP (DDA) - same | 8-Pin PowerPAD HSOP (DDA) - same | 8-Pin PowerPAD HSOP (DDA) - same |
| Input Voltage Range | 4.5 V to 60 V | 4.5 V to 60 V | 4.5 V to 60 V | 4.5 V to 60 V | 4.5 V to 60 V | 4.5 V to 42 V (-30%) |
| Maximum Output Current | 5 A | 5 A | 5 A | 5 A | 5 A | 5 A |
| Integrated HS FET RDS(on) | 92 mΩ | 92 mΩ | 92 mΩ | 92 mΩ | 92 mΩ | 92 mΩ |
| AEC-Q100 Qualification | Yes (Grade 1) | No (industrial only) | Yes (Grade 1) | No (industrial only) | No (industrial only) | No (industrial only) |
| Quiescent Current (Eco-Mode) | 146 µA | 146 µA | 146 µA | 146 µA | 146 µA | 146 µA |
| Max Switching Frequency | 2.5 MHz | 2.5 MHz | 2.5 MHz | 2.5 MHz | 2.5 MHz | 2.5 MHz |
주요 차별점
- Wide 60V continuous / 65V transient input tolerance for 12V/24V automotive buses (vs TPS54541DPRR)
- AEC-Q100 Grade-1 automotive qualification (vs TPS54560DDA)
- Lowest quiescent current in 60V 5A buck class (vs TPS54560BDDAR)
설계 노트
At 24V→5V/5A and 500 kHz switching, the TPS54560QDDAQ1 dissipates approximately (24-5) × 5 × (1 - 0.90) / 0.90 ≈ 2.6W on the integrated 92 mΩ high-side MOSFET. Per TI datasheet thermal tables, the 8-pin PowerPAD HSOP has a θJA of 31.6 °C/W on a 1 sq-in 2-oz copper pour, yielding a junction temperature rise of 82 °C above a 25 °C ambient. For sustained 5A operation at >36V input, expand the copper pour to 2+ sq-in and add a thermal-via array under the PowerPAD. Do not rely on the exposed pad for current carrying - it is a thermal/ground reference only.
Place input ceramic capacitors (≥4.7 µF X7R 100V 0805) within 3 mm of the VIN and PGND pins to minimize switching-loop inductance. The high-side FET switching loop is VIN-PGND-L1-SW-VIN; keep this loop area under 0.5 sq-in. Use a 4-layer PCB with the inner layer dedicated to a solid PGND plane to reduce EMI. The BOOT capacitor (100 nF X7R 25V 0402) must be placed within 2 mm of the BOOT and SW pins. Per TI datasheet layout example, the feedback trace should be routed away from the SW node and inductor to avoid noise coupling.
The TPS54560QDDAQ1's switching edges are intentionally fast (~5 ns) for efficiency, which can cause CISPR 25 Class 5 EMI failures in automotive designs. Mitigation strategies: (1) use a small RC snubber (2.2 Ω + 1 nF) across the Schottky rectifier, (2) place a common-mode choke on the input, (3) use a 4-layer PCB with a continuous ground plane, (4) consider the spread-spectrum version TPS54560B if CISPR 25 is mandatory. The 2.5 MHz maximum switching frequency can be lowered to 500 kHz to push fundamental EMI energy below the AM-band sensitivity window.
Do not leave the SS/TR pin floating - connect a 100 nF capacitor to ground for a 1 ms soft-start that prevents inrush on the input bulk capacitor bank during cold-crank recovery. Do not exceed the 65V transient input rating even for brief spikes - place a 60V TVS (SMAJ60A) on VIN to GND for automotive 12V/24V designs. Do not use the COMP pin without external compensation - the TPS54560QDDAQ1 requires an RC network (typ. 4.7 kΩ + 4.7 nF + 220 pF) for stable current-mode control. Finally, do not assume the PowerPAD is electrically isolated - it is internally bonded to PGND.
Route the high-di/dt switching loop (VIN-PGND-SW-L1-VIN) on the top layer with minimum area; place the input ceramic capacitor on the opposite side of the IC connected by vias to the VIN and PGND planes. The feedback divider (R1 from VOUT to FB, R2 from FB to GND) should be placed close to the FB pin with the ground side of R2 routed directly to the IC's analog ground (pin 8 PGND via short trace). For EMI-sensitive designs, surround the SW node with a ground moat on the top layer to contain capacitive coupling to nearby signal traces.
규정 준수 정보
AEC-Q100 Grade-1 qualified automotive version. Survives 65V load-dump per ISO 7637. RoHS and REACH compliant per TI product page. Lead-free and halogen-free per datasheet materials declaration.
