TPS62849DLCR Texas Instruments Integrated Circuit (Small Outline No-lead) In Stock
Texas Instruments TPS62849DLCR is a high-efficiency PWM/PFM buck switching regulator in an 8-pin WSON package with input range 1.8 V to 6.5 V. It delivers regulated output voltage with automatic PWM-to-PFM mode transition for improved light-load efficiency. Available from stock worldwide with RoHS-compliant lead-free packaging.
- Manufacturer
- Texas Instruments
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TPS62849DLCR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0000(MOQ 100)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-mode PWM/PFM control automatically switches to PFM at light loads to minimise quiescent current and extend battery life
- Wide input voltage range 1.8 V to 6.5 V supports single-cell Li-ion, dual-cell NiMH, and 5 V USB power rails
- 8-pin WSON (Small Outline No-Lead) package enables compact, low-profile PCB designs with excellent thermal pad dissipation
- High switching frequency PWM operation reduces inductor and capacitor size for miniaturised power supply designs
- Introduced in 2019 with 15-year YTEOL indicating long-term supply commitment for industrial and automotive sourcing
Applications
The TPS62849DLCR is optimised for battery-powered portable devices such as wearables, IoT sensor nodes, and wireless communication modules where the automatic PFM mode dramatically reduces no-load current, extending battery runtime. Its 1.8 V to 6.5 V input range makes it directly compatible with single-cell Li-ion batteries (2.5 V to 4.2 V) and 3.3 V/5 V regulated system rails. The compact WSON package and minimal external component count also suit space-constrained power sub-circuits on multi-layer PCBs in industrial telemetry equipment.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 2019-06-27 |
| YTEOL | 15 |
| Additional Feature | ALSO OPERATES IN PFM CONTROL TECHNIQUE |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 6.5V |
| Input Voltage-Min | 1.8V |
| Input Voltage-Nom | 3.6V |
| JESD-30 Code | R-PDSO-N8 |
| JESD-609 Code | e1 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 0.75A |
| Output Voltage-Max | 3.4V |
| Output Voltage-Min | 3.4V |
| Output Voltage-Nom | 3.4V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.06,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1800kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Tin/Silver/Copper (Sn/Ag/Cu) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does TPS62849DLCR's PFM mode reduce power consumption in battery-operated IoT designs?
At light loads, the TPS62849DLCR automatically transitions from PWM to PFM (pulse-frequency modulation) control, reducing switching frequency and gate-drive losses. This can cut quiescent current to the microamp range — potentially 10 µA to 30 µA versus several hundred µA in PWM mode — significantly extending battery life in duty-cycled IoT nodes that spend most of their time in a deep-sleep state with minimal load current.
What input voltage sources are compatible with TPS62849DLCR's 1.8 V to 6.5 V input range?
The 1.8 V to 6.5 V input range covers single-cell Li-ion batteries (2.5 V to 4.2 V), two AA/AAA alkaline cells in series (2.0 V to 3.2 V), 3.3 V and 5 V USB or regulated system rails, and 2-cell NiMH packs (1.8 V to 3.0 V). The 6.5 V maximum also accommodates lead-acid or 2-cell Li-ion configurations at full charge, providing design flexibility across multiple power architecture options.
What PCB area does the 8-pin WSON package of TPS62849DLCR require, and how does it compare to an SO-8 package?
The 8-pin WSON (No-Lead) package measures approximately 2 mm × 2 mm, occupying roughly 4 mm² of PCB real estate. A standard SO-8 package measures approximately 5 mm × 4 mm, occupying about 20 mm². Switching to the WSON package saves approximately 16 mm² per regulator — a 5-fold area reduction that is significant in wearable devices and densely packed multi-rail power supply sections.
How long is TPS62849DLCR expected to remain available, and what does the 15-year YTEOL mean for procurement?
A YTEOL (Years To End Of Life) rating of 15 means Texas Instruments plans to manufacture and sell TPS62849DLCR for at least 15 years from its 2019 introduction date, targeting availability through approximately 2034. This long-term supply commitment is important for industrial and medical equipment designers who must guarantee 10-year spare-parts availability and cannot afford mid-lifecycle component substitution that requires re-qualification testing.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $1.2902 | $129.02 |
| 250+ | $1.2167 | $304.17 |
| 500+ | $1.1766 | $588.28 |
| 1000+ | $1.1300 | $1130.00 |
| 3000+ | $1.0300 | $3090.00 |
| 6000+ | $1.0000 | $6000.00 |
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