Texas Instruments TPS62006DGSR

Overview

TPS62006DGSR from Texas Instruments is a fixed-output 3.3 V, synchronous step-down DC-DC converter optimized for low-power portable systems. It operates from 2 V to 5.5 V input, delivers up to 600 mA output current, achieves >95% peak efficiency at 3.6 V input/2.5 V output, and features pin-programmable current limit (600 mA or 1.2 A) and external clock synchronization up to 1 MHz. It powers core logic in battery-powered handheld devices requiring stable, low-noise 3.3 V rails.

For engineers reviewing the TPS62006DGSR datasheet, TPS62006DGSR pinout, TPS62006DGSR application, or TPS62006DGSR equivalent, key selection considerations include its fixed 3.3 V output, 10-pin VSSOP package with PG and SYNC pins, PFM/PWM mode switching, 50 µA quiescent current in power-save mode, and compatibility with 10 µH inductors and 10 µF output capacitors.

Technical Context

The TPS62006DGSR implements a current-mode, synchronous buck topology with integrated P-channel high-side and N-channel low-side MOSFETs. Its control loop uses internal compensation and supports three functional modes: forced PWM (SYNC = VIN), power-save PFM/PWM (SYNC = GND), and external clock synchronization (500–1000 kHz).

It features undervoltage lockout (~1.6 V), internal soft-start (~1 ms), 100% duty-cycle operation for low-dropout regulation, and a dedicated open-drain power-good (PG) output with 92% threshold and 2.5% hysteresis. The ILIM pin selects between 600 mA (ILIM = GND) and 1200 mA (ILIM = VIN) switch current limits.

Key Specifications

Pinout & Package

The TPS62006DGSR is housed in a 10-pin VSSOP (DGS) package measuring 3.00 mm × 3.00 mm, with exposed thermal pad (PGND-connected) for enhanced thermal performance in high-density layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS62007DGSR, TPS62006DGSR provides higher output voltage for legacy 3.3 V peripherals; compared with TPS62231DRVR, it delivers double the output current, adds power-good signaling and clock synchronization, and supports wider input ranges-making it more suitable for mid-power portable systems requiring robust system integration.

Availability

TPS62006DGSR is available at Aetrix Electronics and suitable for cellular phones, USB modems, handheld PDAs, and digital cameras requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.

Supply support for TPS62006DGSR 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 ICs, with decades of expertise in high-efficiency DC-DC conversion for portable and industrial applications.

The TPS6200x product line was designed specifically for battery-powered handheld electronics requiring high efficiency across wide load ranges, low quiescent current in sleep modes, and minimal external component count-targeting space- and power-constrained portable systems.

FAQ

What is the output voltage of the TPS62006DGSR and is it adjustable?

The TPS62006DGSR provides a fixed 3.3 V output with ±3% tolerance over line, load, and temperature. It is not adjustable-the internal feedback divider is hardwired, and the FB pin is not accessible for external resistor networks. This simplifies design for systems requiring a stable, factory-trimmed 3.3 V rail without calibration overhead.

Does the TPS62006DGSR support external clock synchronization, and what is the valid frequency range?

Yes, the TPS62006DGSR supports external clock synchronization via the SYNC pin. It accepts CMOS-level clock signals from 500 kHz to 1000 kHz. When synchronized, the device operates in forced PWM mode, disabling power-save PFM to ensure deterministic switching timing-critical for noise-sensitive analog circuits and EMI compliance testing.

What is the maximum output current capability of the TPS62006DGSR under typical conditions?

The TPS62006DGSR delivers up to 600 mA continuous output current when the input voltage is ≥2.5 V and the inductor is 10 µH. At lower input voltages (e.g., 2.0–2.4 V), output current is reduced to 200 mA to maintain stability and thermal safety. The ILIM pin allows scaling this limit to 1200 mA if required for transient headroom.

How does the power-good (PG) function work on the TPS62006DGSR?

The TPS62006DGSR's PG pin is an open-drain output that goes high-impedance when EN is low and asserts active-high (pulled up externally to V_OUT) when V_OUT reaches ≥92% of nominal (≥3.04 V). It includes a 100 µs startup delay to prevent false assertions and 2.5% hysteresis to avoid chatter during brownout conditions-enabling reliable system reset and sequencing.

What package type and thermal characteristics does the TPS62006DGSR use?

The TPS62006DGSR is packaged in a 10-pin VSSOP (DGS) with 3.00 mm × 3.00 mm body size and an exposed thermal pad connected to PGND. Its junction-to-ambient thermal resistance (R_θJA) is 160°C/W, and junction-to-board (R_θJB) is 73°C/W-requiring adequate copper pour and thermal vias under the pad for sustained 600 mA operation at 85°C ambient.