Texas Instruments TPS62562DRVT

Overview

TPS62562DRVT from Texas Instruments is a 2.25-MHz synchronous step-down DC-DC converter in a 2 mm × 2 mm × 0.8 mm SON package, delivering up to 600 mA output current with fixed 1.8 V output, 2.5–5.5 V input range, and ±2.5% output voltage accuracy in PWM mode. It powers low-power DSPs, portable media players, and point-of-load rails in battery-powered systems.

For engineers reviewing the TPS62562DRVT datasheet, TPS62562DRVT pinout, TPS62562DRVT application, or TPS62562DRVT equivalent, key selection criteria include its fixed 1.8 V output, MODE-pin-enabled PFM/PWM mode control, 15 μA quiescent current in power-save mode, thermal shutdown at 140°C, and compatibility with 2.2 μH inductors and 10 μF ceramic output capacitors.

Technical Context

The TPS62562DRVT employs voltage-mode control with input-voltage feed-forward for fast line/load regulation and supports automatic transition between pulse-frequency modulation (PFM) at light loads and fixed-frequency PWM at moderate-to-heavy loads. Its internal 0.6 V reference and integrated high/low-side MOSFETs enable precise 1.8 V regulation without external feedback resistors.

It features dynamic voltage positioning (1% overregulation in PFM mode), 100% duty-cycle low-dropout operation for extended battery life, undervoltage lockout (1.85 V falling threshold), and soft-start with 250 μs ramp-up time - all implemented within a thermally enhanced 6-pin SON package with exposed thermal pad.

Key Specifications

Pinout & Package

TPS62562DRVT is housed in a 2 mm × 2 mm × 0.8 mm, 6-pin SON (DRV) package with an exposed thermal pad soldered to PCB ground for thermal management.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS62560DRVT, the TPS62562DRVT eliminates feedback components and simplifies layout for 1.8 V use cases, while TPS62290DRVR trades light-load efficiency for higher current capacity - making TPS62562DRVT the most balanced choice for compact, battery-optimized 1.8 V POL systems.

Availability

TPS62562DRVT is available at Aetrix Electronics and suitable for portable media players, low-power DSP supplies, and point-of-load applications requiring stable component supply, long-term manufacturability, and consistent parametric performance across production lots.

Supply support for TPS62562DRVT 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 company headquartered in Dallas, Texas, designing and manufacturing analog ICs, embedded processors, and digital signal processors for industrial, automotive, and consumer markets.

The TPS6256x family was developed specifically for space-constrained, battery-powered portable electronics requiring high efficiency across wide load ranges - emphasizing small solution size, low quiescent current, and seamless light-load PFM operation.

FAQ

What is the recommended inductor value for TPS62562DRVT in a standard application?

The TPS62562DRVT is optimized for use with a 2.2 μH shielded power inductor rated for ≥700 mA saturation current and ≤110 mΩ DCR. This value balances ripple current (~300 mA peak-to-peak), efficiency (>90% at 100–300 mA), and physical size - enabling full 600 mA capability while maintaining stability with the internal compensation network. Larger inductors reduce ripple but increase transient response time; smaller values risk instability or excessive conduction losses.

Does TPS62562DRVT require external feedback resistors to set its output voltage?

No, the TPS62562DRVT has an internally trimmed 1.8 V output and does not require external feedback resistors. Its FB pin is internally connected to a precision resistor divider referenced to the 0.6 V internal bandgap - unlike the adjustable TPS62560DRVT, which requires R1/R2. For TPS62562DRVT, the FB pin must be connected directly to the output capacitor's VOUT node to complete the regulation loop and ensure ±2.5% accuracy.

How does the MODE pin affect efficiency and noise performance of TPS62562DRVT?

When the MODE pin is pulled to GND, the TPS62562DRVT enters power-save mode, automatically switching between PFM (light loads) and PWM (moderate/heavy loads) to maintain >85% efficiency down to 1 mA. When pulled to VIN, it operates in forced-PWM mode at 2.25 MHz - reducing output voltage ripple and eliminating variable-frequency noise but lowering light-load efficiency to ~70%. This trade-off makes MODE=VIN essential for EMI-sensitive analog circuits.

What thermal considerations apply to TPS62562DRVT in a 2-layer PCB design?

In a 2-layer PCB, the TPS62562DRVT's exposed thermal pad must be soldered to a minimum 100 mm² copper pour connected to GND vias (≥4× 0.3 mm diameter) to achieve the specified R_θJA of 67.8°C/W. Without adequate copper and vias, junction temperature can exceed 125°C at 400 mA continuous load - triggering thermal shutdown. TI recommends 1 oz copper, 10 mm × 10 mm thermal pad, and at least six thermal vias under the pad for reliable 600 mA operation.

Can TPS62562DRVT operate with input voltage below 2.5 V, such as from a nearly depleted Li-ion cell?

The TPS62562DRVT has an absolute minimum input rating of 2.5 V per specifications, and its undervoltage lockout activates at 1.85 V (falling). While it may briefly regulate down to ~2.0 V in 100% duty-cycle mode, operation below 2.5 V is outside recommended conditions and risks instability, reduced efficiency, or failure to maintain 1.8 V output under load. For true low-VIN operation, TI recommends the TPS62130 family (1.8–6.5 V input) instead of TPS62562DRVT.