Texas Instruments TPS62A06DRLR

Overview

TPS62A06DRLR from Texas Instruments is a 6-A synchronous buck DC/DC converter in a 1.6-mm × 1.6-mm SOT563 package, operating from 2.5 V to 5.5 V input and delivering adjustable output (0.6 V to VIN) with 1% feedback accuracy, 2.2-MHz switching frequency, and integrated 15-mΩ/10-mΩ MOSFETs. It serves as a high-efficiency point-of-load regulator in space-constrained battery-powered and multi-rail embedded systems.

For engineers reviewing the TPS62A06DRLR datasheet, TPS62A06DRLR pinout, TPS62A06DRLR application, or TPS62A06DRLR equivalent, key selection criteria include its PSM/FPWM dual-mode operation, power-good output, thermal shutdown, short-circuit HICCUP protection, and compatibility with low-ESR ceramic output capacitors in compact layouts.

Technical Context

The TPS62A06DRLR employs peak-current-mode control with adaptive off-time modulation, maintaining stable 2.2-MHz PWM operation across medium-to-heavy loads while automatically entering power-save mode at light loads to sustain >85% efficiency down to 1 mA. Its 100% duty-cycle capability enables low-dropout regulation under high-VOUT/low-VIN conditions.

Internal features include fixed 1-ms soft-start, undervoltage lockout (2.4 V rising threshold), open-drain power-good output with ±30 µs delay, and robust protection: overcurrent (8.2–10 A peak), thermal shutdown (170°C), and output discharge. The device starts into pre-biased outputs and supports feedforward capacitor integration for improved transient response.

Key Specifications

Pinout & Package

TPS62A06DRLR is housed in a 6-pin SOT563 (DRL) package measuring 1.6 mm × 1.6 mm × 0.6 mm, optimized for high-density PCB layouts and compatible with standard reflow profiles (MSL Level-1).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV62585RTER and TPS62097RMLR, the TPS62A06DRLR uniquely combines 6-A capability, 2.5-V minimum input, power-good output, HICCUP protection, and 100% duty-cycle operation-making it the only option among the three qualified for demanding industrial and battery-backed applications requiring full-feature safety and flexibility.

Availability

TPS62A06DRLR is available at Aetrix Electronics and suitable for multi-function printers, IP network cameras, wireless routers, solid-state drives, and battery-powered portable electronics requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for TPS62A06DRLR 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 TPS62A06x product line was designed specifically for space-constrained, high-current point-of-load applications in consumer, industrial, and networking equipment-emphasizing minimal solution size, wide input range, and robust protection without external components.

FAQ

What is the minimum input voltage required for TPS62A06DRLR to regulate a 1.2-V output at 6 A?

The minimum input voltage depends on load current and component losses. Using the 100% duty-cycle formula: V_IN(MIN) = V_OUT + I_OUT × R_DS(ON)(HS) + I_OUT × R_L. With R_DS(ON) = 15 mΩ and typical inductor DCR of 5 mΩ, V_IN(MIN) ≈ 1.2 V + 6 A × 0.02 Ω = 1.32 V-but the absolute minimum specified is 2.5 V due to internal bias requirements. Thus, TPS62A06DRLR requires ≥2.5 V input regardless of output voltage.

Does TPS62A06DRLR support forced PWM (FPWM) mode, or is it limited to power-save mode (PSM)?

The TPS62A06DRLR operates in automatic PSM/PWM mode-entering PWM at medium-to-heavy loads and PSM at light loads. It does not support forced PWM across the full load range; that functionality is exclusive to the pin-compatible TPS62A06A variant. For designs requiring constant-frequency operation at all loads, TPS62A06A must be selected instead of TPS62A06DRLR.

Can TPS62A06DRLR be used to power an FPGA core rail requiring tight voltage tolerance and sequencing?

Yes. TPS62A06DRLR provides ±1% feedback accuracy over –40°C to +125°C and includes an open-drain power-good (PG) output with programmable threshold (93.5–96% of V_OUT). When paired with an external pullup resistor, PG can drive FPGA power-good inputs or enable downstream regulators, enabling precise rail sequencing and monitoring-critical for FPGA configuration integrity.

What is the recommended output capacitor configuration for TPS62A06DRLR delivering 1.2 V at 6 A?

Texas Instruments recommends 3 × 22 µF X7R ceramic capacitors (0805 case) totaling 66 µF effective capacitance, as validated in the typical application circuit. This configuration meets the 45 µF minimum requirement for 1.2 V outputs, ensures low ESR/ESL, and maintains stability across temperature and DC bias. A feedforward capacitor (120 pF) across the upper feedback resistor further improves transient response.

How does the HICCUP overcurrent protection in TPS62A06DRLR behave during a sustained short circuit?

Upon detecting 32 consecutive peak-current limit events, TPS62A06DRLR disables switching, enters hiccup mode, and waits ~500 µs before attempting restart. This cycle repeats until the fault clears. Unlike latch-off protection, hiccup mode limits average power dissipation and junction temperature rise, preventing thermal damage while allowing automatic recovery-ideal for intermittent faults in field-deployed equipment using TPS62A06DRLR.