Texas Instruments TPS62562DRVR

Overview

TPS62562DRVR from Texas Instruments is a 2.25-MHz synchronous step-down DC-DC converter in a 2 mm × 2 mm × 0.8 mm SON (DRV) package, delivering up to 600 mA output current with fixed 1.8 V output, 2.5–5.5 V input range, and 15 μA quiescent current in power-save mode - optimized for Li-ion–powered portable devices requiring compact, high-efficiency POL regulation.

For engineers reviewing the TPS62562DRVR datasheet, TPS62562DRVR pinout, TPS62562DRVR application, or TPS62562DRVR equivalent, key selection considerations include its fixed 1.8 V output, MODE pin–enabled PWM/PSM mode control, 100% duty-cycle low-dropout operation, thermal shutdown at 140°C, and compatibility with 2.2 μH inductors and 10 μF ceramic output capacitors.

Technical Context

The TPS62562DRVR employs voltage-mode control with input-voltage feed-forward for fast line/load regulation and uses internal P-channel high-side and N-channel low-side MOSFETs (R_DS(on) = 492 mΩ / 391 mΩ max) switching at 2.25 MHz nominal frequency. It supports automatic transition between PWM and PFM modes via the MODE pin, enabling dynamic efficiency optimization across load ranges from 0 to 600 mA.

In PFM mode (MODE = GND), it implements dynamic voltage positioning - regulating output 1% above nominal (1.818 V) to minimize transient undershoot/overshoot during load steps. In forced-PWM mode (MODE = VIN), it maintains fixed-frequency operation for predictable EMI filtering, with soft-start time of 500 μs and V_OUT ramp-up time of 250 μs.

Key Specifications

Pinout & Package

TPS62562DRVR is housed in a thermally enhanced 6-pin SON (DRV) package measuring 2.00 mm × 2.00 mm × 0.8 mm, with an exposed thermal pad soldered to PCB ground for optimal power dissipation (R_θJA = 67.8°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS62560DRVR, the TPS62562DRVR eliminates external feedback components and simplifies layout, while versus TPS62290DRVR it provides tighter integration and lower BOM count for mid-power 1.8 V rails - making it optimal for space-constrained, cost-sensitive portable designs where 600 mA suffices.

Availability

TPS62562DRVR is available at Aetrix Electronics and suitable for portable media players, low-power DSP supplies, and wearable sensor hubs requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for TPS62562DRVR 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 power management solutions for industrial, automotive, and consumer markets.

The TPS6256x product line was developed specifically for battery-powered portable electronics needing ultra-small, high-efficiency DC-DC conversion with minimal external components - targeting PDA, pocket PC, and next-generation wearable platforms.

FAQ

What is the recommended inductor value for TPS62562DRVR in a typical application?

The TPS62562DRVR is optimized for use with a 2.2 μH shielded power inductor rated for ≥750 mA saturation current and ≤110 mΩ DCR. This value balances ripple current (≈300 mA pk-pk), efficiency (>90% at 3.6 V_IN/1.8 V_OUT/300 mA), and solution size. Inductors from 1.5 μH to 4.7 μH are supported, but deviating significantly affects transient response and stability - always verify with the TPS62562DRVR evaluation module layout guidelines.

Does TPS62562DRVR require external feedback resistors to set the output voltage?

No, the TPS62562DRVR has an internal resistor divider configured for a fixed 1.8 V output. The FB pin must be connected directly to the V_OUT node - no external resistors are needed. This differs from the adjustable TPS62560DRVR, which requires R1/R2 to set V_OUT. Using external resistors with TPS62562DRVR will cause regulation error and is not supported.

How does the MODE pin affect efficiency and noise performance of TPS62562DRVR?

When MODE = GND, TPS62562DRVR operates in power-save mode (PFM at light loads), achieving >85% efficiency at 1 mA output with low 15 μA quiescent current but variable switching frequency. When MODE = VIN, it forces fixed 2.25 MHz PWM operation - reducing output voltage ripple and enabling predictable EMI filtering, though efficiency drops to ~70% at 1 mA. Select based on system priority: battery life (GND) vs. noise sensitivity (VIN).

What is the minimum input voltage required for TPS62562DRVR to maintain 1.8 V output at full 600 mA load?

Using the datasheet equation V_IN(min) = V_OUT(max) + I_OUT(max) × (R_DS(on)max + R_L), with V_OUT(max) = 1.845 V (1.8 V + 2.5%), I_OUT(max) = 0.6 A, R_DS(on)max = 492 mΩ, and typical 110 mΩ inductor DCR, V_IN(min) ≈ 2.25 V. However, undervoltage lockout (1.85 V) and 100% duty-cycle capability allow functional operation down to ~1.86 V - albeit with reduced headroom and potential dropout under heavy transient loads.

Can TPS62562DRVR be used in applications requiring thermal shutdown protection?

Yes, TPS62562DRVR includes integrated thermal shutdown that activates at 140°C junction temperature, turning off both MOSFETs until the die cools to 120°C (20°C hysteresis). This protection is active across all operating modes and requires no external circuitry. For reliable operation, ensure the exposed thermal pad is soldered to ≥100 mm² of inner-layer copper pour connected to GND - achieving the specified R_θJA = 67.8°C/W and preventing premature shutdown under 600 mA continuous load.