TPS6594-Q1 - 5 BUCK 4 LDO PMIC | TI | Automotive
MPN: TPS6594-Q1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $10 | $1,000.00 |
| 500 | $9 | $4,500.00 |
| 1,000 | $8.1 | $8,100.00 |
Drop-in alternatives for TPS6594-Q1 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:
TPS65941111RWERQ1
β Drop-Inπ Reference alternative (not in catalog)
TPS65941311RWERQ1
β Drop-Inπ Reference alternative (not in catalog)
TPS6593-Q1
β‘ Same Packageπ Reference alternative (not in catalog)
LP8764-Q1
β‘ Same Packageπ Reference alternative (not in catalog)
TPS6594-Q1 Maximum Ratings & Electrical Characteristics
| Number of BUCK Regulators | 5 (4 multi-phase configurable, 1 fixed 2A) |
| BUCK Output Current per Phase | 3.5 A |
| Additional BUCK Output Current | 2 A |
| Number of LDO Regulators | 4 |
| Input Voltage Range | [DATA_NEEDED: Input voltage range] |
| Output Voltage Range | [DATA_NEEDED: Output voltage range] |
| Interface | I2C/SPI |
| Safety Level | ASIL-D |
| Protection Features | OVP, UVP, OCP, SCP, OTP, CRC |
| Package | 56-VQFNP (8x8) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40C to +125C |
| Qualification | AEC-Q100 |
| RoHS Status | Compliant |
| Number of Pins | 56 |
TPS6594-Q1 Pin Configuration
| Pin 1 | VIN_B1 β Input supply for BUCK1 |
| Pin 2 | SW_B1 β Switch node for BUCK1 |
| Pin 3 | FB_B1 β Feedback for BUCK1 |
| Pin 4 | VIN_B2 β Input supply for BUCK2 |
| Pin 5 | SW_B2 β Switch node for BUCK2 |
| Pin 6 | FB_B2 β Feedback for BUCK2 |
| Pin 7 | VIN_B3 β Input supply for BUCK3 |
| Pin 8 | SW_B3 β Switch node for BUCK3 |
| Pin 9 | FB_B3 β Feedback for BUCK3 |
| Pin 10 | VIN_B4 β Input supply for BUCK4 |
| Pin 11 | SW_B4 β Switch node for BUCK4 |
| Pin 12 | FB_B4 β Feedback for BUCK4 |
| Pin 13 | VIN_B5 β Input supply for BUCK5 |
| Pin 14 | SW_B5 β Switch node for BUCK5 |
| Pin 15 | FB_B5 β Feedback for BUCK5 |
| Pin 16 | VIN_LDO1 β Input supply for LDO1 |
| Pin 17 | VOUT_LDO1 β Output of LDO1 |
| Pin 18 | VIN_LDO2 β Input supply for LDO2 |
| Pin 19 | VOUT_LDO2 β Output of LDO2 |
| Pin 20 | VIN_LDO3 β Input supply for LDO3 |
| Pin 21 | VOUT_LDO3 β Output of LDO3 |
| Pin 22 | VIN_LDO4 β Input supply for LDO4 |
| Pin 23 | VOUT_LDO4 β Output of LDO4 |
| Pin 24 | SCL β I2C clock |
| Pin 25 | SDA β I2C data |
| Pin 26 | SPI_CLK β SPI clock |
| Pin 27 | SPI_CS β SPI chip select |
| Pin 28 | SPI_MOSI β SPI master out slave in |
| Pin 29 | SPI_MISO β SPI master in slave out |
| Pin 30 | GPIO1 β General purpose I/O |
| Pin 31 | GPIO2 β General purpose I/O |
| Pin 32 | GPIO3 β General purpose I/O |
| Pin 33 | GPIO4 β General purpose I/O |
| Pin 34 | EN β Enable pin |
| Pin 35 | nINT β Interrupt output |
| Pin 36 | nRST β Reset output |
| Pin 37 | VCCA β Analog supply |
| Pin 38 | VCCD β Digital supply |
| Pin 39 | VDD_IO β I/O supply |
| Pin 40 | GND β Ground |
| Pin 41 | GND β Ground |
| Pin 42 | GND β Ground |
| Pin 43 | GND β Ground |
| Pin 44 | GND β Ground |
| Pin 45 | GND β Ground |
| Pin 46 | GND β Ground |
| Pin 47 | GND β Ground |
| Pin 48 | GND β Ground |
| Pin 49 | GND β Ground |
| Pin 50 | GND β Ground |
| Pin 51 | GND β Ground |
| Pin 52 | GND β Ground |
| Pin 53 | GND β Ground |
| Pin 54 | GND β Ground |
| Pin 55 | GND β Ground |
| Pin 56 | GND β Ground |
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
TPS6594-Q1 is suitable for 6 applications: ADAS Domain Controller, Digital Cockpit, Gateway Module, Autonomous Driving, Infotainment System, Body Control Module.
ADAS Domain Controller
The TPS6594-Q1 provides multiple high-current rails for ADAS processors like TDA4VM. Its ASIL-D safety features ensure reliable operation in safety-critical systems. The multi-phase BUCKs deliver up to 7A for core rails, while LDOs supply noise-sensitive analog circuits. Integrated monitoring and protection enhance system safety.
Recommended
Digital Cockpit
Powering infotainment processors like DRA829V, the TPS6594-Q1 supplies multiple voltage rails with proper sequencing. Its configurable OTP allows customization for different display and audio subsystems. The device's low quiescent current helps meet automotive standby requirements. Comprehensive diagnostics support system health monitoring.
Recommended
Gateway Module
In automotive gateways, the TPS6594-Q1 provides reliable power to communication processors. Its multiple BUCKs and LDOs support various I/O voltages. The device's protection features, including OVP and OCP, safeguard against faults. Its small 56-pin package saves PCB space in compact ECUs.
Recommended
Autonomous Driving
For autonomous driving systems, the TPS6594-Q1 delivers high-current rails for AI accelerators and sensor fusion processors. Its ASIL-D capability meets the highest safety integrity. The multi-phase BUCKs can be combined for currents exceeding 10A. Extensive diagnostics enable fault detection and recovery.
Recommended
Infotainment System
The TPS6594-Q1 powers infotainment processors with multiple voltage rails for CPU, GPU, and memory. Its configurable sequencing ensures proper power-up order. The device's low-noise LDOs are ideal for audio and video analog supplies. Its thermal management features prevent overheating in enclosed dashboards.
Recommended
Body Control Module
In body control modules, the TPS6594-Q1 provides efficient power conversion for MCUs and peripherals. Its multiple BUCKs can be configured for different load requirements. The device's low standby current helps reduce battery drain. Its robust protection features ensure reliability in harsh automotive environments.
Recommended
Recommended Products Summary
Engineering reference data for TPS6594-Q1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TPS65941111RWERQ1 | TPS65941311RWERQ1 | TPS6593-Q1 | LP8764-Q1 |
|---|---|---|---|---|---|
| Package | 56-VQFNP (8x8) | 56-VQFNP (8x8) | 56-VQFNP (8x8) | 56-VQFNP (8x8) | 56-VQFNP (8x8) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of BUCKs | 5 | 5 | 5 | 5 | 4 |
| Number of LDOs | 4 | 4 | 4 | 4 | 4 |
| Safety Level | ASIL-D | ASIL-D | ASIL-D | ASIL-B | ASIL-D |
| Interface | I2C/SPI | I2C/SPI | I2C/SPI | I2C/SPI | I2C/SPI |
| BUCK Current per Phase | 3.5 A | 3.5 A | 3.5 A | 3.5 A | 3.5 A |
| OTP Configurable | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Supports ASIL-D safety level (vs TPS6593-Q1)
- Five BUCK regulators with multi-phase capability (vs LP8764-Q1)
- Comprehensive diagnostic features (vs TPS6593-Q1)
Design Notes
Ensure input supply decoupling with 10uF ceramic capacitors close to each VIN pin. The multi-phase BUCKs require careful inductor selection to meet ripple and transient requirements. Use the TI Power Configurator to set OTP and verify sequencing.
The 56-VQFNP package has an exposed pad for thermal dissipation. Solder the pad to a large copper area on the PCB. For high-current operation, consider adding thermal vias to improve heat transfer to inner layers.
Keep feedback traces short and away from switching nodes. Route the I2C/SPI lines with proper termination. Follow the layout guidelines in the datasheet to minimize noise and ensure stable operation.
Compliance Information
AEC-Q100 qualified for automotive applications. RoHS compliant per TI product page.
