TPS7A11105PDRVR Texas Instruments Integrated Circuit (Small Outline No-lead) In Stock
TPS7A11105PDRVR is a 500 mA ultra-low-dropout LDO linear regulator with a 130 mV nominal dropout voltage at full load and a fixed 0.5 V output. It operates from an input range of 1.55 V to 3.3 V and is housed in a compact 6-pin WSON package. Suited for low-voltage rail regulation in IoT, wearable, and battery-powered portable applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline No-lead
- Pin Count
- 7
- Lifecycle
- ACTIVE
- Datasheet
- TPS7A11105PDRVR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6013(MOQ 10)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 130 mV nominal dropout voltage at 500 mA enabling efficient use of low-voltage batteries
- 500 mA output current capacity for moderate-load microcontroller and sensor supply rails
- Ultra-low quiescent current for extended battery life in always-on IoT devices
- Fixed 0.5 V output in 1.55 V to 3.3 V input range covering Li-ion end-of-discharge
- 6-pin WSON (small outline no-lead) package with exposed pad for thermal management
- AEC-Q100 compatible with e4 JESD-609 moisture-sensitivity rating for automotive use
Applications
TPS7A11105PDRVR is used in wearable devices, IoT sensor nodes, and Bluetooth Low Energy modules where the supply rail must be regulated from a single-cell Li-ion battery discharging from 3.0 V down to 1.55 V with minimal dropout headroom. Its 500 mA output supports microcontrollers and radio SoCs that draw burst currents during wireless transmission events. The 130 mV dropout makes it an efficient choice for always-on health monitoring patches and industrial LPWAN trackers that must extract every milliwatt-hour from compact coin cells or thin-film batteries.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.14V |
| Dropout Voltage1-Nom | 0.13V |
| Input Voltage Absolute-Max | 3.6V |
| Input Voltage-Max | 3.3V |
| Input Voltage-Min | 1.55V |
| JESD-30 Code | S-PDSO-N6 |
| JESD-609 Code | e4 |
| Line Regulation-Max | 0.000018375% |
| Load Regulation-Max | 0.00104979% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.5A |
| Output Voltage1-Max | 1.0657V |
| Output Voltage1-Min | 1.0342V |
| Output Voltage1-Nom | 1.05V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 1.5% |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How low can the input voltage drop before TPS7A11105PDRVR loses regulation at 500 mA?
TPS7A11105PDRVR has a nominal dropout voltage of 130 mV at 500 mA output current, with a maximum specification of 140 mV, so the input needs to be only 0.63 V above the 0.5 V output to maintain regulation at full load. This means the device continues to regulate down to approximately 0.64 V input under 500 mA load, but its datasheet minimum input voltage of 1.55 V sets the practical lower operating limit for system design. The ultra-low dropout is critical for Li-ion batteries in final discharge, where cell voltage falls below 3.0 V toward the 1.55 V cutoff.
For a Bluetooth Low Energy SoC running from a 3 V coin cell, why is TPS7A11105PDRVR a good fit?
TPS7A11105PDRVR accepts inputs from 1.55 V to 3.3 V, spanning the full discharge curve of a CR2032 coin cell from 3.0 V fresh down to approximately 2.0 V end-of-life. Its 130 mV dropout voltage at 500 mA ensures the 0.5 V output stays in regulation while the BLE SoC draws peak currents during 2.4 GHz transmit bursts of up to several hundred milliamps. The small 6-pin WSON package minimizes PCB area in coin-cell-powered wearable designs where every square millimetre of board space is premium.
What output voltage does TPS7A11105PDRVR regulate to, and is it adjustable?
TPS7A11105PDRVR regulates to a fixed 0.5 V output voltage and is not adjustable. The fixed output eliminates the external resistor divider required by adjustable LDOs, reducing component count and board area. A 0.5 V output rail is typical for powering sub-1 V core voltage domains in advanced-node SoCs, FPGA core supply rails, and point-of-load regulation stages downstream of a 1.8 V or 3.3 V system supply, where the ultra-low dropout prevents waste heat from a high input-to-output differential.
How does the 6-pin WSON package of TPS7A11105PDRVR compare to a SOT-23 for thermal performance?
The 6-pin WSON (small outline no-lead) package includes an exposed metal pad on the bottom that bonds directly to the PCB copper pour, giving it a thermal resistance junction-to-board of approximately 40°C/W compared to 200°C/W or more for a 5-pin SOT-23. At 500 mA output with a 1 V input-to-output differential, the LDO dissipates 0.5 W, and the WSON's low thermal resistance keeps junction temperature well below the 125°C maximum on a standard 2-layer PCB with a small ground fill under the device.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 10+ | $0.8400 | $8.40 |
| 25+ | $0.7400 | $18.50 |
| 100+ | $0.7000 | $70.00 |
| 250+ | $0.6404 | $160.09 |
| 500+ | $0.6144 | $307.21 |
| 1000+ | $0.6013 | $601.29 |
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