Texas Instruments TPS613223ADBVR

Overview

TPS613223ADBVR from Texas Instruments is a synchronous boost converter optimized for ultra-low-power battery-powered systems, delivering fixed 2.0-V output with ±3% accuracy, 0.42-A minimum switch current limit, and only 6.5-µA quiescent current into VOUT. It operates from 0.9-V to 5.5-V input and supports 1-cell alkaline/NiMH applications requiring stable low-voltage rail generation.

For engineers reviewing the TPS613223ADBVR datasheet, TPS613223ADBVR pinout, TPS613223ADBVR application, or TPS613223ADBVR equivalent, key selection criteria include its 3-pin SOT-23 (DBZ) package, hysteretic current-mode control, thermal shutdown protection, and compatibility with small external inductors (e.g., 4.7 µH) and ceramic capacitors for compact portable designs.

Technical Context

The TPS613223ADBVR implements a hysteretic current-mode control topology with fixed 2.0-V internal feedback reference, enabling discontinuous conduction mode (DCM) operation under light loads to maintain >90% efficiency at 10-mA output. Its soft-start circuit ramps the internal reference voltage over 2 ms to limit inrush current during startup from as low as 0.83-V VOUT.

It integrates dual MOSFETs (R_DS(on) = 400 mΩ HS / 1680 mΩ LS), undervoltage lockout (UVLO) with 0.4-V turn-off threshold and 100-mV hysteresis, and cycle-by-cycle peak current limiting capped at 0.42 A (min) across –40°C to +125°C junction temperature.

Key Specifications

Pinout & Package

TPS613223ADBVR is housed in a 2.9-mm × 1.3-mm 3-pin SOT-23 (DBZ) package with exposed pad not electrically connected. Pin spacing is 0.95 mm; recommended solder profile complies with JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar boost converter applications.

Compared with TPS613223ADBVR, TPS613224ADBVR offers identical performance at 2.5 V for logic-compatible systems, while TPS613226ADBVR trades lower output voltage accuracy for higher current delivery and broader peripheral support - both require board-level validation due to voltage-specific feedback networks.

Availability

TPS613223ADBVR is available at Aetrix Electronics and suitable for wireless peripherals, portable medical sensors, low-power IoT end nodes, industrial handheld scanners, and battery-powered instrumentation requiring stable component supply with long-lifecycle assurance.

Supply support for TPS613223ADBVR 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.

The TPS61322 family was designed specifically for ultra-low-power, single-cell battery applications - prioritizing minimal quiescent current, small solution size, and robust operation across wide input voltage ranges in portable and medical electronics.

FAQ

What is the exact output voltage tolerance of the TPS613223ADBVR over temperature?

The TPS613223ADBVR delivers a fixed 2.0-V output with ±3% accuracy across the full operating junction temperature range of –40°C to +125°C. This specification is guaranteed in the electrical characteristics table and verified under load conditions with VIN between 0.9 V and 5.5 V. The TPS613223ADBVR achieves this stability through an internal precision voltage reference and trimmed feedback network, eliminating drift-related calibration needs in end equipment.

Can the TPS613223ADBVR operate from a single NiMH cell with fully discharged voltage?

Yes - the TPS613223ADBVR starts up when VOUT reaches 0.83 V (typical) and continues regulation down to 0.4-V input after startup, making it compatible with deeply discharged NiMH cells (nominal 1.2 V, end-of-discharge ~0.9 V). Its 6.5-µA quiescent current ensures minimal drain during standby, extending usable battery capacity. The TPS613223ADBVR's UVLO hysteresis (0.4 V off / 0.5 V on) prevents oscillation near cutoff.

What is the recommended inductor value for typical TPS613223ADBVR applications?

Texas Instruments recommends a 4.7-µH inductor for standard TPS613223ADBVR implementations targeting 2.0-V output, such as wireless mice or portable sensors. This value balances efficiency (>90% at 10 mA), stability, and physical size - with saturation current ≥300 mA to handle peak switch currents. The TPS613223ADBVR supports inductors from 0.7 µH to 13 µH, but 4.7 µH optimizes loop stability and transient response without requiring oversized output capacitance.

Does the TPS613223ADBVR require external compensation components?

No - the TPS613223ADBVR uses a hysteretic current-mode control architecture with internal compensation, so no external resistors or capacitors are needed for loop stability. Its fixed 2.0-V output is set entirely within the IC, and the control scheme automatically transitions between continuous and discontinuous conduction modes based on load. This eliminates tuning effort and reduces bill-of-materials cost for the TPS613223ADBVR in space-constrained designs.

How does thermal shutdown behave in the TPS613223ADBVR during sustained overload?

The TPS613223ADBVR activates thermal shutdown at 150°C junction temperature and remains latched off until the die cools to approximately 130°C (20°C hysteresis). During overload, internal temperature rises due to increased conduction and switching losses; once shutdown triggers, the SW pin stops switching and VOUT collapses. Recovery is automatic upon cooling - no reset signal or power cycle is required. This behavior protects both the TPS613223ADBVR and downstream circuitry during fault conditions.