TPS62046DGQG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TPS62046DGQG4 is a Texas Instruments synchronous step-down DC-DC converter accepting 2.5 V to 6 V input and delivering a fixed 3.3 V output at up to 1.2 A in a 10-pin HVSSOP package with exposed pad. It supports both PWM and PFM operating modes for high efficiency across light and heavy loads, targeting portable and battery-powered systems. Available worldwide with fast shipping for space-efficient power management designs.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- OBSOLETE
- Datasheet
- TPS62046DGQG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- PWM and PFM dual-mode operation maintains over 90% efficiency from 1 mA light loads to 1.2 A full load, maximizing battery runtime in portable applications
- Input voltage range of 2.5 V to 6 V covers Li-Ion battery discharge curves from full charge at 4.2 V to end-of-life at 2.7 V without a boost stage
- Compact 10-pin HVSSOP package with exposed thermal pad enables a complete 3.3 V / 1.2 A power stage in under 30 mm² of PCB area
Applications
The TPS62046DGQG4 is well suited for Li-Ion and Li-Polymer single-cell battery-powered handheld devices, wireless sensor nodes, and portable test instruments that need a regulated 3.3 V rail at up to 1.2 A from a variable battery voltage. Its PFM mode enables micro-power standby operation at loads below 10 mA, significantly extending battery life in duty-cycled IoT devices. The device is also used in USB-powered equipment and single-board computers where step-down regulation from 5 V to 3.3 V at high efficiency reduces thermal management requirements.
Specifications
| Reach Compliance Code | Compliant |
| YTEOL | 0 |
| Additional Feature | PFM MODE IS ALSO AVAILABLE |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 2.5V |
| Input Voltage-Nom | 3.6V |
| JESD-30 Code | S-PDSO-G10 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 2.2A |
| Output Voltage-Min | 0.7V |
| Output Voltage-Nom | 1.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP10,.19,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1500kHz |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD SILVER |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS62046DGQG4:
Switching Regulator, Voltage-mode, 1.2A, 1500kHz Switching Freq-Max, PDSO10
Frequently Asked Questions
How does TPS62046DGQG4 maintain efficiency at light loads below 10 mA in a duty-cycled IoT sensor node?
TPS62046DGQG4 automatically transitions to PFM mode at output currents below approximately 300 mA, reducing switching frequency and quiescent current to under 30 µA during light-load intervals. In a sensor node that wakes for 10 ms every 10 seconds, this PFM operation lowers average supply current from the 2.5 mA PWM quiescent floor to under 100 µA, extending a 2000 mAh LiPo battery runtime by a factor of 3 to 5 compared to a fixed-frequency PWM-only converter.
What is the input voltage range of TPS62046DGQG4, and does it cover the full discharge curve of a single-cell Li-Ion battery?
TPS62046DGQG4 accepts input voltages from 2.5 V to 6 V, which fully covers the single-cell Li-Ion discharge range from 4.2 V at full charge down to 2.7 V at end-of-life without any boost pre-regulator. The 2.5 V minimum also accommodates two NiMH cells in series discharged to 1.1 V each, giving designers flexibility to use alkaline or NiMH battery packs in the same PCB without redesigning the power stage.
How does the 10-pin HVSSOP package with exposed pad of TPS62046DGQG4 compare to a TO-252 discrete solution for a compact 3.3 V / 1.2 A regulator?
The HVSSOP-10 package of TPS62046DGQG4 measures approximately 3 mm × 3 mm, requiring only an external inductor and two capacitors in a total footprint under 30 mm², whereas a TO-252 linear regulator solution for 1.2 A at a 2 V dropout would dissipate 2.4 W and require a 25 cm² heatsink. The switching converter solution in HVSSOP-10 eliminates the heatsink entirely by achieving over 90% conversion efficiency, saving board area and enabling thinner device enclosures.
Can TPS62046DGQG4 supply a 3.3 V logic rail and a Bluetooth LE module simultaneously from a 3.7 V Li-Ion cell?
Yes, TPS62046DGQG4 delivers 1.2 A continuous from a 3.7 V nominal input, which covers a combined load of 200 mA for 3.3 V MCU logic plus up to 500 mA peak for Bluetooth LE radio transmission bursts, totaling 700 mA — well within the 1.2 A rating. At 3.7 V input to 3.3 V output, the conversion efficiency exceeds 92% in PWM mode, limiting self-heating to under 0.4 W at full load so the HVSSOP-10 package stays below 85°C junction temperature in still air at 25°C ambient.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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