TPS62051DGSG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TPS62051DGSG4 is a single-channel step-down (buck) switching regulator from Texas Instruments delivering up to 800 mA output current with an adjustable output voltage from 0.7 V to 6 V and an input range of 2.7 V to 10 V. It employs voltage-mode PWM control with automatic PFM switchover at light loads for improved efficiency, housed in a compact 10-pin MSOP package. The device is designed for portable electronics, battery-powered instruments, and embedded systems requiring efficient point-of-load conversion from Li-ion or multi-cell battery stacks.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- OBSOLETE
- Datasheet
- TPS62051DGSG4 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
- 800 mA maximum output current for single-channel step-down conversion
- Adjustable output voltage from 0.7 V to 6 V via external resistor divider
- 2.7 V to 10 V input range compatible with Li-ion and multi-cell battery systems
- Automatic PWM/PFM mode switching for high efficiency across load range
- Voltage-mode control for predictable loop compensation
- 10-pin MSOP package for compact PCB footprint
- RoHS-compliant JESD-609 e4 halogen-free construction
Applications
The TPS62051DGSG4 is well suited for battery-powered portable devices such as handheld instruments, wearables, and IoT sensor nodes that draw regulated power from a single-cell or dual-cell Li-ion pack ranging from 2.7 V to 10 V. Its adjustable output voltage down to 0.7 V makes it an ideal point-of-load regulator for powering FPGA core voltages, DSP cores, and low-voltage microcontrollers in space-constrained embedded designs. Industrial data loggers and wireless sensor modules also benefit from its PFM-mode light-load efficiency to extend battery runtime.
Specifications
| YTEOL | 0 |
| Additional Feature | OPERATES IN ADJUSTABLE MODE FROM 0.7 TO 6V, ALSO HAS CONTROL TECHNIQUE OF PFM |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 10V |
| Input Voltage-Min | 2.7V |
| Input Voltage-Nom | 7.2V |
| JESD-30 Code | S-PDSO-G10 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1.4A |
| Output Voltage-Max | 6V |
| Output Voltage-Min | 0.7V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP10,.19,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | TS 16949 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1000kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| 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 TPS62051DGSG4:
Switching Regulator, Voltage-mode, 0.8A, 1000kHz Switching Freq-Max, PDSO10
Switching Regulator, Voltage-mode, 1.4A, 1000kHz Switching Freq-Max, BICMOS, PDSO10
Frequently Asked Questions
How does the TPS62051DGSG4's automatic PFM mode extend battery life in IoT sensor nodes?
At light loads below approximately 50 mA, the TPS62051DGSG4 automatically switches from PWM to PFM (pulse-frequency modulation) mode, reducing switching frequency and quiescent current to maintain high conversion efficiency. This automatic switchover can increase battery runtime by 20–40% in sleep-mode IoT nodes operating from a single Li-ion cell in the 3.6 V to 4.2 V input range compared to a fixed-frequency regulator that idles at full switching frequency.
Which output voltages can be set on the TPS62051DGSG4, and how is the output voltage adjusted?
The output voltage is adjustable from 0.7 V to 6 V by choosing an external resistor divider between the output and the FB pin referenced to the 0.7 V internal reference. This range covers common core supply levels including 0.9 V, 1.0 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V, giving designers a single regulator solution for most point-of-load rails on an embedded board fed from a 2.7 V to 10 V source.
Can the TPS62051DGSG4 power an FPGA core voltage rail directly from a 2-cell Li-ion battery stack?
Yes, a 2-cell Li-ion stack produces 6 V to 8.4 V, which falls within the TPS62051DGSG4's 2.7 V to 10 V input range, and its adjustable output can be set to the typical FPGA core voltage of 1.0 V or 1.2 V with up to 800 mA continuous output current. The voltage-mode PWM control loop is straightforward to compensate for FPGA loads that exhibit large step-load transients during reprogramming or high-logic-utilisation bursts.
For a compact motor-driver auxiliary supply, how much board space does the 10-pin MSOP package require?
The 10-pin MSOP package has a body measuring approximately 3.0 mm × 3.0 mm with 0.65 mm pin pitch, requiring a PCB land pattern of roughly 5 mm × 4 mm including pad extensions. Combined with just a few external passives — an inductor, input/output capacitors, and the feedback resistor divider — the complete TPS62051DGSG4 regulator circuit typically fits within 100 mm² of PCB area, making it practical for compact motor-driver gate-supply and logic-supply auxiliary rails.
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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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