Texas Instruments TPS62272DRVR

Overview

TPS62272DRVR from Texas Instruments is a 2.25 MHz synchronous step-down DC-DC converter delivering up to 400 mA output current with pin-selectable fixed output voltages of 2.1 V (VSEL = 0) or 3.3 V (VSEL = 1), operating from 2 V to 6 V input - optimized for Li-ion battery-powered portable electronics including smartphones and navigation systems.

For engineers reviewing the TPS62272DRVR datasheet, TPS62272DRVR pinout, TPS62272DRVR application, or TPS62272DRVR equivalent, key selection criteria include its 2.25 MHz fixed-frequency PWM/PSM operation, 15 µA typical quiescent current, 100% duty cycle low-dropout capability, 2×2×0.8 mm SON-6 package, and dynamic voltage scaling support via VSEL pin.

Technical Context

The TPS62272DRVR employs a voltage-mode control architecture with input voltage feed-forward for fast line/load regulation and stable operation with small ceramic capacitors. Its internal synchronous MOSFETs feature typical R_DS(on) of 240 mΩ (high-side) and 180 mΩ (low-side) at 3.6 V, enabling high efficiency across 2–6 V input range.

It automatically transitions between PWM mode (fixed 2.25 MHz) and Power Save Mode (PFM) at light loads, maintaining >85% efficiency down to 10 µA load. Voltage positioning in PFM mode holds output within ±1% of nominal while minimizing ripple via timing-controlled pulses and external L/C selection.

Key Specifications

Pinout & Package

The TPS62272DRVR is housed in a thermally optimized 2 mm × 2 mm × 0.8 mm SON-6 package with exposed PowerPad for improved heat dissipation and PCB-level thermal management.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar step-down converter applications.

Compared with TPS62272DRVR, TPS62260DRVR offers lower cost but sacrifices dual-voltage flexibility and 100 mA output headroom, while TPS62740DSSR achieves nanowatt shutdown at the expense of reduced current capability and absence of VSEL-based voltage scaling - making TPS62272DRVR uniquely suited for mid-power portable processors requiring runtime voltage adaptation.

Availability

TPS62272DRVR is available at Aetrix Electronics and suitable for smartphone power management, portable navigation systems, and digital camera core supplies requiring stable component supply with guaranteed long-term manufacturability and consistent electrical performance.

Supply support for TPS62272DRVR 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 over 50 years of innovation in energy-efficient power conversion.

The TPS6227x family was designed specifically for space-constrained, battery-powered portable electronics requiring high-efficiency, dynamically scalable, and ultra-compact DC-DC solutions - targeting mobile phones, GPS units, and media players.

FAQ

What output voltages does the TPS62272DRVR support, and how are they selected?

The TPS62272DRVR supports two fixed output voltages: 2.1 V when VSEL is connected to GND, and 3.3 V when VSEL is connected to VIN. These values are factory-trimmed with ±1.5% accuracy and require no external feedback components. The VSEL pin accepts standard CMOS logic levels and can be toggled dynamically during operation to scale processor core voltage - a feature confirmed in TI's SLVS799C datasheet Table 1 and Functional Description section.

Does the TPS62272DRVR require external compensation components?

No, the TPS62272DRVR does not require external compensation components. It uses an internal, factory-compensated voltage-mode control loop optimized for 2.2 µH inductors and 10 µF ceramic output capacitors. The FB pin is internally connected to a precision resistor divider; for fixed-output operation, it must be shorted directly to VOUT - as specified in the Terminal Functions table and Application Information section of the official datasheet.

What is the minimum input voltage required for regulation at 3.3 V output and 400 mA load?

The minimum input voltage for regulation is calculated as V_IN(min) = V_OUT(max) + I_OUT(max) × (R_DS(on)^max + R_L). For TPS62272DRVR at 3.3 V/400 mA: V_OUT(max) = 3.37 V, R_DS(on)^max = 480 mΩ, and assuming R_L = 80 mΩ (typical 2.2 µH inductor), V_IN(min) ≈ 3.37 V + 0.4 A × 0.56 Ω = 3.59 V - verified against the "100% Duty Cycle" subsection in the DETAILED DESCRIPTION.

How does the TPS62272DRVR manage efficiency at light loads?

The TPS62272DRVR maintains high efficiency at light loads by automatically entering Power Save Mode (PFM), where switching frequency drops and quiescent current falls to 15 µA typical. In PFM mode, it delivers timed current pulses to sustain output voltage within ±1% using voltage positioning - confirmed by Figure 10 (PFM Mode Operation) and the "Power Save Mode" functional description in the datasheet.

Is the TPS62272DRVR pin-compatible with other devices in the TPS6227x family?

Yes, the TPS62272DRVR shares identical pinout, package (SON-6), and footprint with TPS62270DRVR and TPS62273DRVR - all listed under the same DRV package designation in the ORDERING INFORMATION table. However, output voltage options differ: TPS62270 supports 0.9 V/1.15 V, TPS62272 supports 2.1 V/3.3 V, and TPS62273 supports 2.5 V/3.3 V - requiring verification of VSEL mapping and load requirements before substitution.