Specifications
| Type | Description |
|---|---|
| Part Number | TPS54202DDCR |
| Manufacturer | Texas Instruments |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | DDC SOT-23, 6-pin, 2.9 mm × 2.8 mm nominal package size including pins |
| Component Type | Power_IC |
| Input Voltage Range | 4.5 to 28 V; recommended operating condition |
| Output Current | 2 A continuous; integrated MOSFET synchronous buck converter |
| High-Side MOSFET On Resistance | 148 mΩ typ; TA = 25°C, VBST-SW = 5 V |
| Low-Side MOSFET On Resistance | 78 mΩ typ; TA = 25°C, VIN = 12 V |
| Shutdown Current | 3 µA typ; EN = GND |
| Non-Switching Quiescent Current | 45 µA typ; EN = 5 V, VFB = 1 V |
| Soft-Start Time | 5 ms typ; internal soft start |
| Switching Frequency | 390 kHz min, 500 kHz typ, 630 kHz max; oscillator center switching frequency |
| VIN UVLO Rising Threshold | 3.9 V min, 4.2 V typ, 4.4 V max; VIN rising |
| VIN UVLO Falling Threshold | 3.4 V min, 3.7 V typ, 3.9 V max; VIN falling |
| VIN UVLO Hysteresis | 400 mV min, 480 mV typ, 560 mV max; VIN undervoltage lockout |
| Enable Rising Threshold | 1.21 V min, 1.28 V max; EN pin rising |
| Enable Falling Threshold | 1.1 V min, 1.19 V max; EN pin falling |
| Enable Input Current | 0.7 µA typ; VEN = 1 V |
| Enable Hysteresis Current | 1.55 µA typ; VEN = 1.5 V |
| Feedback Voltage | 0.581 V min, 0.596 V typ, 0.611 V max; VIN = 12 V |
| Pulse Skip Mode Peak Inductor Current Threshold | 300 mA typ; VIN = 24 V, VOUT = 5 V, L = 15 µH; not production tested |
| High-Side Current Limit | 2.5 A min, 3.2 A typ, 3.9 A max; current limit |
| Low-Side Source Current Limit | 2 A min, 3 A typ, 4.3 A max; current limit |
| Thermal Shutdown Rising Temperature | 160°C typ; over temperature protection; not production tested |
| Thermal Shutdown Hysteresis | 10°C typ; over temperature protection; not production tested |
| Hiccup Time | 32768 cycles typ; over temperature protection table entry; not production tested |
| Hiccup Wait Time | 512 cycles typ; over current protection timing requirement |
| Hiccup Restart Time | 16384 cycles typ; over current protection timing requirement before restart |
| Minimum On Time | 110 ns typ; measured at 90% to 90% and 1 A loading; not production tested |
| Absolute Maximum VIN Voltage | -0.3 to 30 V; over operating free-air temperature range |
| Absolute Maximum EN Voltage | -0.3 to 7 V; over operating free-air temperature range |
| Absolute Maximum FB 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; output voltage range |
| Absolute Maximum SW Transient Voltage | -5 to 30 V; 20 ns transient |
| Operating Junction Temperature Absolute Maximum | -40 to 150°C; absolute maximum rating |
| Storage Temperature Range | -65 to 150°C; absolute maximum rating |
| HBM ESD Rating | ±2500 V; human-body model per ANSI/ESDA/JEDEC JS-001 |
| CDM ESD Rating | ±1500 V; charged-device model per JEDEC JESD22-C101 |
| Recommended EN Voltage Range | -0.1 to 5.5 V; recommended operating condition |
| Recommended FB Voltage Range | -0.1 to 5.5 V; recommended operating condition |
| Recommended BOOT-SW Voltage Range | -0.1 to 5.5 V; recommended operating condition |
| Recommended SW Voltage Range | -0.1 to 28 V; recommended operating condition |
| Recommended Operating Junction Temperature | -40 to 125°C; recommended operating condition |
| Junction-to-Ambient Thermal Resistance | 118.6°C/W; DDC SOT-23, 6 pins |
| Junction-to-Case Top Thermal Resistance | 63.6°C/W; DDC SOT-23, 6 pins |
| Junction-to-Board Thermal Resistance | 34.4°C/W; DDC SOT-23, 6 pins |
| Junction-to-Top Characterization Parameter | 18.5°C/W; DDC SOT-23, 6 pins |
| Junction-to-Board Characterization Parameter | 33.7°C/W; DDC SOT-23, 6 pins |
| Junction-to-Ambient Thermal Resistance on Official EVM Board | 57.2°C/W; DDC SOT-23, 6 pins, official EVM board |
| BOOT Pin Function | High-side NFET gate drive supply input; connect 0.1 µF capacitor between BOOT and SW |
| EN Pin Function | Enable input; float to enable; pin 5 |
| FB Pin Function | Converter feedback input; connect to output voltage with feedback resistor divider |
| Overvoltage Protection Threshold | Activates above 108% nominal output voltage; releases below 104%; comparator turns high-side MOSFET off and masks turn-on |
| BOOT-SW UVLO Threshold | 2.1 V typ; boot capacitor voltage monitor turns high-side MOSFET off below threshold |
| Control Method | Constant-frequency peak current mode control; used for line and load transient performance |
| EMI Reduction Feature | Frequency spread spectrum |
| Light Load Mode | Advanced Eco-mode pulse skip |
| Datasheet Status | request_only |
Product Overview
TPS54202DDCR is a Texas Instruments synchronous step-down converter categorized under Power_Management. It operates from a 4.5 to 28 V recommended input range and provides 2 A continuous output current using integrated MOSFETs. The converter uses constant-frequency peak current mode control and has a 390 kHz minimum, 500 kHz typical, and 630 kHz maximum oscillator switching frequency.
The device is supplied in a DDC SOT-23, 6-pin package with a 2.9 mm × 2.8 mm nominal package size including pins. Package thermal data includes 118.6°C/W junction-to-ambient thermal resistance and 57.2°C/W junction-to-ambient thermal resistance on the official EVM board. Recommended operating junction temperature is -40 to 125°C.
Functional pins include BOOT as the high-side NFET gate drive supply input, EN as an enable input that may be floated to enable, and FB as the converter feedback input connected through a resistor divider. Protection and operating features include VIN UVLO, BOOT-SW UVLO, overvoltage protection, current limits, hiccup timing, and thermal shutdown.
Key Features
- 4.5 to 28 V recommended input range
- 2 A continuous synchronous buck output current
- 500 kHz typical fixed switching frequency
- 148 mΩ typical high-side MOSFET resistance
- 78 mΩ typical low-side MOSFET resistance
- 45 µA typical non-switching quiescent current
- 5 ms typical internal soft-start time
- Advanced Eco-mode pulse skip at light load
- Frequency spread spectrum for EMI reduction
- Constant-frequency peak current mode control
- VIN UVLO, overvoltage, overcurrent, and thermal protection
Typical Applications
- Step-down voltage regulation
- Point-of-load buck conversion
- Low-quiescent-current power rails
- Wide-input DC conversion
- Light-load pulse-skip operation
- SOT-23 power management designs
- Feedback-divider adjustable output regulation
Procurement Notes
When requesting a quote for TPS54202DDCR, 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 TPS54202DDCR support?
TPS54202DDCR has a recommended operating input voltage range of 4.5 to 28 V. Its VIN absolute maximum rating is -0.3 to 30 V, and the recommended SW voltage range is -0.1 to 28 V.
What output current is specified for TPS54202DDCR?
The extracted datasheet facts specify TPS54202DDCR as an integrated MOSFET synchronous buck converter with 2 A continuous output current. Current-limit data includes a 3.2 A typical high-side limit and 3 A typical low-side source limit.
Which package is used for TPS54202DDCR?
TPS54202DDCR is supplied in a DDC SOT-23, 6-pin package. The nominal package size including pins is 2.9 mm × 2.8 mm, with listed package thermal resistance values including 118.6°C/W junction-to-ambient.
What control and light-load modes are documented?
The converter uses constant-frequency peak current mode control for line and load transient performance. The listed light-load mode is Advanced Eco-mode pulse skip, with a 300 mA typical peak inductor current threshold under the stated test condition.
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.