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Texas Instruments TPS61015DGS
- Part No.:
- TPS61015DGS
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS61015DGS.pdf
- Description:
- IC REG BOOST 3V 1A 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:177
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Product details
Overview
TPS61015DGS from Texas Instruments is a fixed-output 3.3 V, high-efficiency synchronous boost converter for single- or dual-cell battery systems. It delivers up to 200 mA output current from 0.8 V input, starts reliably at 0.9 V, integrates a 1.06 A switch current limit, and features autodischarge and low-battery detection - used in portable medical diagnostics and wireless headsets.
For engineers reviewing the TPS61015DGS datasheet, TPS61015DGS pinout, TPS61015DGS application, or TPS61015DGS equivalent, key selection criteria include minimum start-up voltage (0.9 V), fixed 3.3 V output tolerance (±3.3% at 100 mA), shutdown current (1–3 µA), integrated synchronous rectification, and MSOP-10 package compatibility with space-constrained battery-powered designs.
Technical Context
The TPS61015DGS implements a fixed-frequency (420–780 kHz), current-mode PWM controller with pulse-by-pulse switch current limiting (1.06 A typical). Its synchronous rectifier uses integrated NMOS/PMOS switches (rDS(on) ≤ 0.51 Ω / 0.54 Ω at VO = 1.5 V) to eliminate external Schottky diodes and achieve >95% peak efficiency.
It operates across –40°C to +85°C, enters powersave mode below ~10 mA load to reduce switching losses, and isolates load from battery during shutdown via backgate diode disconnection. Autodischarge (enabled via ADEN tied to VBAT) discharges output capacitance to <0.4 V using a 300–400 Ω internal switch.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±3.3% (2.9–3.1 V at 100 mA); eliminates need for external feedback divider. |
| Input Voltage Range | 0.8 V to 3.6 V; supports deep-discharged NiMH/NiCd/alkaline cells down to 0.8 V operation. |
| Max Output Current | 200 mA at VIN ≥ 1.8 V; sufficient for MCU + sensor + RF transceiver loads in portable devices. |
| Switch Current Limit | 1.06 A typical; limits peak inductor current to prevent saturation and ensure stable startup into full load. |
| Quiescent Current | 5–8 µA (VBAT/SW + VOUT); enables >1-year shelf life in battery-backed memory or RTC applications. |
| Oscillator Frequency | 420–780 kHz; balances EMI control and inductor size-supports 10 µH Sumida CDRH6D38 or Coilcraft DO1608C. |
| Shutdown Current | 1–3 µA at TA = 25°C; minimizes battery drain during system sleep or power-off states. |
| Feedback Reference | 500 mV ±4% (480–520 mV); sets regulation point for internal error amplifier in fixed-output variants. |
Pinout & Package
TPS61015DGS is housed in a 10-pin MSOP (VSSOP-10) package, 3.00 mm × 3.00 mm body size, with exposed thermal pad for enhanced thermal dissipation (RθJA = 161.8°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 EN | Chip-enable input | Active-high digital enable; pulls converter into full shutdown (1–3 µA Ioff) when grounded. |
| 2 COMP | Compensation node | Connects R-C-C network to stabilize control loop; critical for transient response and phase margin. |
| 3 FB | Feedback input | Left unconnected in fixed-output TPS61015DGS; not used for regulation (internal divider sets 3.3 V). |
| 4 GND | Power ground | Main return path for SW, VOUT, and internal circuits; must be low-impedance connection to thermal pad. |
| 5 VOUT | Regulated output | 3.3 V supply rail; requires 10–47 µF X7R/X5R ceramic output capacitor for stability and ripple suppression. |
| 6 VBAT | Battery input | Accepts 0.8–3.6 V; UVLO disables operation below ~0.7 V to prevent erratic behavior. |
| 7 SW | Switch node | Connects to inductor (10–33 µH); carries pulsed current up to 1.06 A; requires tight layout to minimize ringing. |
| 8 ADEN | Autodischarge enable | Tied to VBAT to activate discharge of COUT to <0.4 V during shutdown; tied to GND to disable. |
| 9 LBI | Low-battery input | Monitors scaled battery voltage; comparator triggers LBO when LBI falls below 480–520 mV threshold. |
| 10 LBO | Low-battery open-drain output | Active-low flag (VOL ≤ 0.2 V @ 10 µA); requires external pullup to VOUT for microcontroller wake-up or alert. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated NMOS/PMOS switches replace external Schottky diode, enabling >95% peak efficiency and eliminating diode forward drop loss. |
| Powersave mode | Automatic transition to burst-mode at light loads (<10 mA); reduces switching frequency to maintain >85% efficiency down to 100 µA output. |
| Load isolation during shutdown | Backgate diode of high-side PMOS is actively disconnected when EN = GND, preventing battery drain through output capacitance. |
| Autodischarge function | Internal 300–400 Ω switch discharges COUT after EN deactivation; ensures residual VOUT < 0.4 V to prevent MCU latch-up or memory corruption. |
| Low-battery detection | Programmable threshold via resistive divider on LBI; 500 mV reference with 10 mV hysteresis enables accurate end-of-life battery signaling. |
| Antiringing switch | Integrated circuit clamps SW node voltage spikes during turn-off, reducing EMI and eliminating need for external snubber components. |
Applications
| Internet Audio Players | Portable Medical Diagnostic Equipment |
|---|---|
|
Use Scenario: Powering audio codec, flash memory, and Bluetooth LE radio from two alkaline cells. IC Role / Device Role / Timing Role: Primary 3.3 V system rail generator with fast transient response to handle bursty RF transmission current demands. Use Value: 200 mA capability and 0.9 V start-up sustain playback during battery depletion; autodischarge prevents false wake-ups from residual VOUT. |
Use Scenario: Supplying glucose meter MCU, LCD driver, and analog front-end from single NiMH cell. IC Role / Device Role / Timing Role: Stable 3.3 V bias source with precise low-battery warning (LBO) to trigger calibration alerts before measurement failure. Use Value: 500 mV LBI threshold with 10 mV hysteresis enables accurate 0.9 V battery cutoff; shutdown isolation preserves battery charge between tests. |
| Wireless Headsets | Remote Control |
|
Use Scenario: Delivering regulated 3.3 V to DSP, MEMS mic, and 2.4 GHz transceiver in compact earbud form factor. IC Role / Device Role / Timing Role: High-efficiency boost stage minimizing heat in sealed enclosure; powersave mode extends talk time. Use Value: >95% peak efficiency and 5–8 µA quiescent current maximize runtime; MSOP-10 footprint fits tight PCB real estate. |
Use Scenario: Enabling IR LED driver and touch decoder from one AAA alkaline cell with long shelf life. IC Role / Device Role / Timing Role: Always-on 3.3 V supply with ultra-low shutdown current to preserve battery over multi-year storage. Use Value: 1–3 µA Ioff and load isolation prevent >1% annual self-discharge; 0.8 V operating floor supports full button functionality until exhaustion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61016DGS | Fixed 3.3 V output with wider tolerance (3.2–3.4 V); 1.13 A switch limit; identical pinout and package. | Higher output voltage margin suits systems requiring tighter 3.3 V regulation under load variation. | Select TPS61016DGS if design needs guaranteed ≥3.2 V at full 200 mA load; otherwise TPS61015DGS offers tighter nominal match. |
| TPS61291DRVR | Lower IQ (0.6 µA), higher efficiency (>94% at 10 µA), but only 100 mA output; 6-pin WSON package. | Optimized for ultra-low-power IoT sensors-not suitable for 200 mA audio or medical loads. | Choose TPS61291DRVR only for sub-100 mA, always-on applications where nanoscale IQ outweighs current capability. |
Compared with TPS61015DGS, TPS61016DGS provides higher output voltage headroom at full load, while TPS61291DRVR trades current capacity for extreme quiescent current reduction-neither is pin-compatible, and both require PCB layout revision.
Availability
TPS61015DGS is available at Aetrix Electronics and suitable for portable medical diagnostics, wireless headsets, and internet audio players requiring stable component supply with consistent parametric performance across production batches.
Supply support for TPS61015DGS includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management ICs, with decades of expertise in battery-powered system solutions.
The TPS6101x family was designed specifically for ultra-low-voltage, high-efficiency boost conversion in single/dual-cell portable electronics-emphasizing start-up reliability, load isolation, and integrated protection functions.
FAQ
What is the minimum input voltage required for TPS61015DGS to start up?
The TPS61015DGS starts up into full load with a minimum input voltage of 0.9 V at room temperature. Once operational, it continues regulating down to 0.8 V input. This enables reliable boot-up from deeply discharged NiMH or alkaline cells, and is verified per TI SLVS314F Section 7.5.
Does TPS61015DGS require an external feedback resistor divider?
No. The TPS61015DGS is a fixed-output variant with internal resistor divider set to 3.3 V; the FB pin is left unconnected. Only the adjustable TPS61010DGS uses FB for external programming - confirmed in TI's Device Comparison Table and Pin Functions section.
How does the autodischarge function work on TPS61015DGS?
When ADEN is tied to VBAT, the TPS61015DGS activates an internal 300–400 Ω discharge switch upon shutdown (EN = GND), draining output capacitance to <0.4 V. If ADEN is grounded, autodischarge is disabled - detailed in Section 9.3.6 and Electrical Characteristics Table.
What is the maximum continuous output current of TPS61015DGS?
The TPS61015DGS delivers up to 200 mA continuous output current when input voltage is ≥1.8 V, and 100 mA when input is 0.8–1.8 V. These values are specified in Recommended Operating Conditions (Section 7.3) and validated across temperature.
Is TPS61015DGS pin-compatible with other TPS6101x variants?
Yes - all TPS6101x DGS-packaged variants (TPS61010DGS through TPS61016DGS) share identical 10-pin MSOP pinout and footprint. However, fixed-output versions differ in internal feedback and LBO/LBI behavior; verify functional compatibility per application requirements.
TPS61015DGS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 0.8V
- Voltage - Input (Max):
- 3V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 1A (Switch)
- Frequency - Switching:
- 500kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSSOP
TPS61015DGS FAQ
1.How can I place an order for TPS61015DGS through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61015DGS on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS61015DGS reliable?
The price and inventory of TPS61015DGS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61015DGS is usually 5 days.
3.What payment methods are accepted for TPS61015DGS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61015DGS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61015DGS?
TPS61015DGS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61015DGS order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS61015DGS?
For technical support, including TPS61015DGS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61015DGS requirements.
6.How does Aetrix verify that TPS61015DGS is sourced from the original manufacturer or authorized distributors?
All TPS61015DGS products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS61015DGS meets industry standards.
7.What is the process for return or replacement of TPS61015DGS?
All TPS61015DGS units undergo pre-shipment inspection (PSI). If there is an issue with TPS61015DGS, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS61015DGS part is unused and in its original packaging.
Return procedure for TPS61015DGS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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