Specifications
| Type | Description |
|---|---|
| Part Number | TPS54302DDCR |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package Case | DDC SOT-23-THIN, 6-pin, 2.9 mm × 2.8 mm nominal |
| Component Type | Power_IC |
| Input voltage range | 4.5 to 28 V; Operating range |
| Output current | 3 A continuous; Integrated MOSFET buck converter |
| High-side MOSFET on resistance | 85 mΩ typ; TA=25°C, VBST-SW=5 V |
| Low-side MOSFET on resistance | 40 mΩ typ; TA=25°C, VIN=12 V |
| Shutdown current | 2 µA typ; EN=GND |
| Non-switching quiescent current | 45 µA typ; EN=5 V, VFB=1 V |
| Soft-start time | 5 ms nominal; Internal soft start |
| Switching frequency | 290 min, 400 typ, 510 max kHz; Center switching frequency |
| Control mode | Peak current mode control; Device feature |
| Light-load mode | Advanced Eco-mode pulse skip; Device feature |
| EMI reduction feature | Frequency spread spectrum; Device feature |
| Internal compensation | Integrated loop compensation; Device feature |
| Absolute maximum VIN voltage | -0.3 to 30 V; Over operating free-air temperature range |
| Absolute maximum EN input voltage | -0.3 to 7 V; Over operating free-air temperature range |
| Absolute maximum FB input voltage | -0.3 to 7 V; Over operating free-air temperature range |
| Absolute maximum BOOT-SW voltage | -0.3 to 7 V; Over operating free-air temperature range |
| Absolute maximum SW voltage | -0.3 to 30 V; Over operating free-air temperature range |
| Absolute maximum SW transient voltage | -5 to 30 V; 20 ns transient |
| Absolute maximum operating junction temperature | -40 to 150 °C; Absolute maximum rating |
| Storage temperature | -65 to 150 °C; Absolute maximum rating |
| HBM ESD rating | ±2500 V; ANSI/ESDA/JEDEC JS-001 |
| CDM ESD rating | ±1500 V; JEDEC JESD22-C101 |
| Recommended VIN voltage | 4.5 to 28 V; Recommended operating conditions |
| Recommended EN input voltage | -0.1 to 5.5 V; Recommended operating conditions |
| Recommended FB input voltage | -0.1 to 5.5 V; Recommended operating conditions |
| Recommended BOOT-SW voltage | -0.1 to 5.5 V; Recommended operating conditions |
| Recommended SW voltage | -0.1 to 28 V; Recommended operating conditions |
| Recommended operating junction temperature | -40 to 125 °C; Recommended operating conditions |
| Junction-to-ambient thermal resistance | 118.9 °C/W; DDC SOT-23, 6 pins |
| Junction-to-case top thermal resistance | 58.3 °C/W; DDC SOT-23, 6 pins |
| Junction-to-board thermal resistance | 35.0 °C/W; DDC SOT-23, 6 pins |
| Junction-to-top characterization parameter | 14.0 °C/W; DDC SOT-23, 6 pins |
| Junction-to-board characterization parameter | 34.8 °C/W; DDC SOT-23, 6 pins |
| Junction-to-ambient thermal resistance on EVM | 57.2 °C/W; Official EVM board |
| VIN UVLO rising threshold | 3.8 min, 4.1 typ, 4.4 max V; Rising VIN |
| VIN UVLO falling threshold | 3.3 min, 3.6 typ, 3.9 max V; Falling VIN |
| VIN UVLO hysteresis | 400 min, 480 typ, 560 max mV; VIN undervoltage lockout |
| EN rising threshold | 1.23 min, 1.28 typ V; Enable threshold rising |
| EN falling threshold | 1.1 min, 1.16 typ V; Enable threshold falling |
| EN input current | 0.7 µA typ; VEN=1 V |
| EN hysteresis current | 1.55 µA typ; VEN=1.5 V |
| Feedback voltage | 0.581 min, 0.596 typ, 0.611 max V; VIN=12 V |
| Pulse skip mode peak inductor current threshold | 500 mA typ; VIN=12 V, VOUT=5 V, L=10 µH; not production tested |
| High-side current limit | 4 min, 5 typ, 6 max A; Maximum inductor peak current |
| Low-side source current limit | 3.1 min, 4 typ, 5.5 max A; Maximum inductor valley current |
| Thermal shutdown rising temperature | 160 °C typ; Not production tested |
| Thermal shutdown hysteresis | 10 °C typ; Not production tested |
| Thermal shutdown hiccup time | 32768 cycles; Overtemperature protection |
| Hiccup wait time | 512 cycles; Overcurrent protection |
| Hiccup time before restart | 16384 cycles; Overcurrent protection |
| Minimum on time | 110 ns typ; Measured at 90% to 90% and 1 A loading; not production tested |
| BOOT capacitor recommendation | 0.1 µF; Connect between BOOT and SW pins |
| BOOT-SW UVLO threshold | 2.1 V typ; High-side MOSFET turns off when boot capacitor voltage falls below threshold |
| Output overvoltage comparator activation threshold | 108% of nominal output voltage; High-side MOSFET turned off |
| Output overvoltage comparator release threshold | 104% of nominal output voltage; High-side MOSFET masked from turning on until output voltage is lower |
| Datasheet Status | request_only |
Product Overview
TPS54302DDCR is a Texas Instruments synchronous step-down converter for Power_Management designs requiring conversion from a 4.5 to 28 V operating input range. The device integrates MOSFETs for 3 A continuous output current and uses peak current mode control with integrated loop compensation. Its center switching frequency is specified at 290 kHz minimum, 400 kHz typical, and 510 kHz maximum.
The part is supplied in a DDC SOT-23-THIN, 6-pin package with 2.9 mm × 2.8 mm nominal dimensions. A 0.1 µF BOOT capacitor is recommended between BOOT and SW pins. Electrical limits include 85 mΩ typical high-side MOSFET on resistance, 40 mΩ typical low-side MOSFET on resistance, 45 µA typical non-switching quiescent current, and 2 µA typical shutdown current. Protection-related facts include VIN UVLO thresholds, overcurrent hiccup timing, output overvoltage comparator thresholds, and 160 °C typical thermal shutdown rising temperature.
Key Features
- 4.5 to 28 V operating input range
- 3 A continuous integrated MOSFET buck output
- Peak current mode control architecture
- Advanced Eco-mode pulse skip at light load
- Frequency spread spectrum for EMI reduction
- Integrated loop compensation inside device
- 5 ms nominal internal soft-start time
- 400 kHz typical center switching frequency
- 2 µA typical shutdown current with EN grounded
- 0.596 V typical feedback voltage
Typical Applications
- Step-down voltage conversion
- Power_Management buck rails
- 28 V input bus regulation
- 3 A regulated output rails
- Light-load pulse skip supplies
- SOT-23-THIN power designs
- Externally bootstrapped buck converters
Procurement Notes
When requesting a quote for TPS54302DDCR, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What input voltage range does TPS54302DDCR support?
TPS54302DDCR has an operating and recommended VIN range of 4.5 to 28 V. Its absolute maximum VIN rating is -0.3 to 30 V over the operating free-air temperature range.
What output current is specified for TPS54302DDCR?
The device is specified as an integrated MOSFET buck converter with 3 A continuous output current. Current-limit facts include 5 A typical high-side peak current limit and 4 A typical low-side valley current limit.
Which package is used by TPS54302DDCR?
TPS54302DDCR is supplied in the DDC SOT-23-THIN, 6-pin package with nominal dimensions of 2.9 mm × 2.8 mm. Thermal data includes 118.9 °C/W junction-to-ambient resistance for the DDC SOT-23 6-pin package.
What control and light-load modes are listed?
The converter uses peak current mode control and includes Advanced Eco-mode pulse skip operation for light-load behavior. The datasheet facts also list frequency spread spectrum and integrated loop compensation as device features.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.