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Texas Instruments TPS613226ADBVR
- Part No.:
- TPS613226ADBVR
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TPS613226ADBVR.pdf
- Description:
- IC REG BOOST 3.6V 1.6A SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:8,572
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Product details
Overview
TPS613226ADBVR from Texas Instruments is a synchronous boost converter optimized for ultra-low-power battery-powered systems, delivering fixed 3.6 V output with ±3% accuracy, 6.5-µA quiescent current into VOUT, and 1.2-A peak switch current limit in a 5-pin SOT-23 (DBV) package. It operates from 0.9 V to 5.5 V input and supports 1-cell alkaline/NiMH or single Li-ion battery applications requiring stable low-noise 3.6 V rail for microcontrollers or sensors.
For engineers reviewing the TPS613226ADBVR datasheet, TPS613226ADBVR pinout, TPS613226ADBVR application, or TPS613226ADBVR equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternatives, and supply-ready availability details - all grounded in TI's production-grade SLVSDY5E datasheet (Feb 2024).
Technical Context
The TPS613226ADBVR uses a hysteretic current-mode control topology with synchronous rectification to achieve high efficiency at light loads while maintaining ultra-low quiescent current. Its internal error amplifier regulates output voltage by adjusting inductor current offset against a fixed 200-mA ripple, enabling both continuous and discontinuous conduction modes depending on load.
Startup begins when VIN exceeds 0.83 V; soft-start ramps reference voltage to 0.8 V over 2 ms to limit inrush. Undervoltage lockout disables operation below 0.4 V (with 100-mV hysteresis), and thermal shutdown activates at 150°C (130°C restart threshold), ensuring robust operation in compact portable designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 0.9 V to 5.5 V - supports full discharge curve of 1-cell alkaline (0.9–1.6 V) and single Li-ion (3.0–4.2 V) without external LDO pre-regulation. |
| Output Voltage | Fixed 3.6 V (±3% over –40°C to +125°C) - eliminates need for external feedback resistors; matches common MCU I/O or sensor bias rails. |
| Quiescent Current | 6.5 µA into VOUT pin - enables >1-year battery life in always-on wake-on-event systems powered by 200-mAh alkaline cells. |
| Peak Switch Current Limit | 1.2 A - supports up to ~500 mA output at 3.6 V with 3-V input when paired with external Schottky diode (per TI application note). |
| Efficiency @ 10 mA | >90% at 1.5-V → 2.2-V conversion - directly applicable to TPS613226A per Figure 6-7; confirms high light-load efficiency critical for intermittent-sensing nodes. |
| Thermal Shutdown Threshold | 150°C junction temperature - protects device during sustained high-current operation in sealed enclosures or high ambient conditions. |
| Package | SOT-23-5 (DBV), 2.9 mm × 1.6 mm - surface-mount compatible with standard reflow profiles; 0.95-mm max height enables thin-profile wearable integration. |
Pinout & Package
SOT-23-5 (DBV) package: 2.9 mm × 1.6 mm body, 0.95 mm max height, gull-wing leads, JEDEC MO-178AC compliant. Pin 1 marked via dot; pins 3 and 5 are NC (no internal connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 4) | Power ground reference | Primary return path for switch current and IC bias; must be connected to low-impedance PCB ground plane adjacent to SW and VOUT pins. |
| SW (Pin 2) | Switch node | Drives external inductor; carries high di/dt switching current - requires short, wide trace and local ceramic decoupling to minimize EMI and voltage spikes. |
| VOUT (Pin 5) | Regulated output | Delivers fixed 3.6 V; connects to output capacitor and load; quiescent current drawn here enables accurate light-load regulation without external bias network. |
| NC (Pin 1) | No connection | Internally unconnected - may be left floating or tied to GND for mechanical stability; no electrical function. |
| NC (Pin 3) | No connection | Internally unconnected - no routing or soldering required; avoids false assumptions about unused functionality. |
Key Features
| Feature | Design Value |
|---|---|
| Hysteretic current-mode control | Eliminates external compensation components and enables instant load transient response (<10 µs recovery) without loop-stability tuning. |
| 200-mA fixed inductor ripple | Enables predictable CCM/DCM boundary and simplifies inductor selection - e.g., 2.2-µH or 4.7-µH suffices for most 3.6-V output designs. |
| Soft-start (2-ms ramp) | Reduces input inrush current to <50 mA during startup - prevents brownout in weak battery or shared-rail systems. |
| External Schottky diode support | Boosts output current capability beyond internal FET limits - enables 500+ mA at 3.6 V with 3-V input for USB OTG or display backlight drivers. |
| UVLO with 100-mV hysteresis | Prevents oscillatory operation near battery depletion - ensures clean shutdown at 0.4 V and reliable restart only after recharge to ≥0.5 V. |
Applications
| Wireless Sensor Node | Gaming Peripheral |
|---|---|
Use Scenario: Battery-powered environmental sensor (temperature/humidity) transmitting data every 5 minutes via BLE. IC Role / Device Role / Timing Role: Primary 3.6-V power rail generator from single AA alkaline cell (0.9–1.6 V range). Use Value: 6.5-µA quiescent current extends 200-mAh battery life to >18 months; fixed 3.6 V eliminates resistor divider errors in precision ADC references. |
Use Scenario: Compact Bluetooth gaming mouse with RGB LED feedback and motion sensing. IC Role / Device Role / Timing Role: Boost regulator supplying 3.6 V to MCU and 5 V (via external diode) to RGB driver IC. Use Value: 1.2-A peak switch limit enables simultaneous MCU + LED operation; SOT-23-5 footprint fits tight 20 × 30 mm PCB area. |
| Portable Medical Monitor | Industrial Handheld Scanner |
Use Scenario: Pocket-sized pulse oximeter using optical sensors and OLED display. IC Role / Device Role / Timing Role: Single-chip 3.6-V supply for analog front-end and display controller from 1.5-V NiMH cell. Use Value: ±3% output accuracy ensures consistent LED drive current and ADC reference stability across –20°C to +60°C operating range. |
Use Scenario: Rugged barcode scanner powered by replaceable AA batteries, requiring 3.6 V for CMOS image sensor and 5 V for laser driver. IC Role / Device Role / Timing Role: Dual-rail source: native 3.6 V output + external Schottky-assisted 5 V rail. Use Value: Thermal shutdown (150°C) prevents latch-up during extended scanning sessions; 0.9-V min input sustains operation until battery reaches end-of-life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS613222ADBVR | Fixed 5.0 V output; 1.8-A peak switch limit; higher RDS(on) (750 mΩ HS / 150 mΩ LS). | Targets USB OTG (5 V) or display bias; not suitable where 3.6 V rail is mandatory for MCU core voltage. | Select only if system requires 5 V output and can tolerate slightly lower efficiency at light loads due to higher RDS(on). |
| TPS613221ADBVR | Fixed 3.3 V output; 1.2-A peak switch limit; identical quiescent current and package. | Matches 3.3-V logic families (e.g., SPI peripherals, UART transceivers); lacks 3.6-V compatibility for certain RF modules or analog sensors. | Choose when interfacing with 3.3-V-only subsystems; verify 3.3 V meets minimum VDD requirements of target ICs before substitution. |
Compared with TPS613226ADBVR, TPS613222ADBVR provides higher output voltage and current but sacrifices 3.6-V precision for USB-compliant 5 V, while TPS613221ADBVR offers identical form-factor and efficiency but shifts output to 3.3 V - making TPS613226ADBVR the sole option for designs requiring exact 3.6-V regulation with minimal BOM count.
Availability
TPS613226ADBVR is available at Aetrix Electronics and suitable for wireless sensor nodes, gaming peripherals, portable medical monitors, industrial handheld scanners, and battery-backed real-time clocks requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TPS613226ADBVR 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 technologies, with decades of expertise in high-efficiency DC/DC conversion for battery-constrained applications.
The TPS61322 family was designed specifically for ultra-low-quiescent-current boost conversion in single-cell battery systems - targeting multi-year operation in IoT edge nodes, wearables, and portable medical devices where every nanoamp counts.
FAQ
What is the exact output voltage tolerance of the TPS613226ADBVR over temperature?
The TPS613226ADBVR delivers a fixed 3.6 V output with ±3% accuracy across the full operating junction temperature range of –40°C to +125°C, as specified in Section 6.5 Electrical Characteristics of the SLVSDY5E datasheet. This tolerance includes initial calibration, line regulation, load regulation, and thermal drift - ensuring reliable operation for precision analog circuits without external trimming.
Can the TPS613226ADBVR operate with input voltage below 0.9 V?
Yes - the TPS613226ADBVR supports startup down to 0.83 V (typical) at the VOUT pin and can sustain operation with input voltage as low as 0.4 V after startup, per Section 7.3.4 Undervoltage Lockout. However, guaranteed performance (efficiency, regulation, current limit) applies only within the recommended 0.9 V to 5.5 V input range.
Does the TPS613226ADBVR require external compensation components?
No - the TPS613226ADBVR uses a hysteretic current-mode control architecture that eliminates the need for external compensation networks. Its internal error amplifier and fixed 200-mA inductor ripple enable stable operation with only two external components: an inductor and output capacitor - reducing BOM count and layout complexity.
How does the thermal shutdown behavior of the TPS613226ADBVR affect system reliability?
The TPS613226ADBVR shuts down at 150°C junction temperature and automatically resumes operation once the die cools to ~130°C (20°C hysteresis). This protects against permanent damage during sustained overload or poor heatsinking, and its 189.7°C/W junction-to-ambient thermal resistance (DBV package) allows safe operation up to 500 mW dissipation in still air - sufficient for typical 100–200 mA loads.
Is the TPS613226ADBVR pin-compatible with other variants in the TPS61322 family?
Yes - all TPS61322xx variants in the SOT-23-5 (DBV) package share identical pinout: Pin 1 (NC), Pin 2 (SW), Pin 3 (NC), Pin 4 (GND), Pin 5 (VOUT). This allows direct substitution between TPS613226ADBVR, TPS613222ADBVR, and TPS613221ADBVR without PCB redesign, provided output voltage and current requirements align with the selected variant.
TPS613226ADBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 0.9V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3.6V
- Voltage - Output (Max):
- -
- Current - Output:
- 1.6A (Switch)
- Frequency - Switching:
- 500kHz ~ 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TPS613226ADBVR FAQ
1.How can I place an order for TPS613226ADBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS613226ADBVR 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 TPS613226ADBVR reliable?
The price and inventory of TPS613226ADBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS613226ADBVR is usually 5 days.
3.What payment methods are accepted for TPS613226ADBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS613226ADBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS613226ADBVR?
TPS613226ADBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS613226ADBVR 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 TPS613226ADBVR?
For technical support, including TPS613226ADBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS613226ADBVR requirements.
6.How does Aetrix verify that TPS613226ADBVR is sourced from the original manufacturer or authorized distributors?
All TPS613226ADBVR 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 TPS613226ADBVR meets industry standards.
7.What is the process for return or replacement of TPS613226ADBVR?
All TPS613226ADBVR units undergo pre-shipment inspection (PSI). If there is an issue with TPS613226ADBVR, 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 TPS613226ADBVR part is unused and in its original packaging.
Return procedure for TPS613226ADBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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