Texas Instruments TPS76630DRG4

Overview

TPS76630DRG4 from Texas Instruments is a 3.0V fixed-output, 250mA low-dropout linear voltage regulator in an 8-pin SOIC package. It operates from 2.5V to 16V input, delivers ±1% output accuracy over load and temperature, features open-drain power-good signaling, and supports stable operation with ≥2.2µF output capacitance - used for biasing microcontrollers and SiC gate drivers in HVAC control modules.

For engineers reviewing the TPS76630DRG4 datasheet, TPS76630DRG4 pinout, TPS76630DRG4 application, or TPS76630DRG4 equivalent, key selection criteria include dropout voltage at full load (270mV typ), PSRR of 46dB at 1MHz, thermal shutdown at 173°C, enable logic thresholds (VIH = 1.2V, VIL = 0.4V), and compatibility with ceramic output capacitors down to 2.2µF.

Technical Context

The TPS76630DRG4 implements a PMOS pass transistor architecture enabling low dropout and high PSRR. Its internal soft-start (750µs typ) limits inrush current, while the open-drain PG output provides active-high power-good status with 91–98.5% VO trip threshold and 0.45% hysteresis.

It integrates overcurrent limiting (0.725–0.8A typ), thermal shutdown with 173°C trip and 157°C reset, and operates across –40°C to +125°C junction temperature. The device draws only 55µA typical quiescent current at no load and reduces to 0.9µA in standby (EN = VIN).

Key Specifications

Pinout & Package

TPS76630DRG4 is housed in an 8-pin SOIC (D) package measuring 4.9mm × 6mm, with exposed pad not present. Pin functions are validated per TI SLVS237E Rev. MARCH 2024.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar LDO regulator applications.

Compared with TPS76630DRG4, TPS76730DR offers dual outputs but sacrifices power-good functionality, while MCP1703T-3002E/MB achieves ultra-low quiescent current at the expense of input voltage range and control features - making TPS76630DRG4 optimal for industrial 12V systems requiring precision, supervision, and robustness.

Availability

TPS76630DRG4 is available at Aetrix Electronics and suitable for residential HVAC control, automotive body electronics, and industrial appliance UIs requiring stable component supply, long-term manufacturability, and automotive-grade reliability.

Supply support for TPS76630DRG4 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 and embedded processing technologies, with decades of LDO design expertise and broad industrial qualification.

The TPS766 family was engineered for high-reliability industrial and automotive power management, emphasizing wide input range, precision output, integrated supervision (PG/EN), and thermal resilience in compact SOIC packaging.

FAQ

What is the maximum input voltage rating for the TPS76630DRG4?

The TPS76630DRG4 has an absolute maximum input voltage of 18V, with recommended operating range up to 16V. This allows direct regulation from 12V automotive or industrial rails, including transient spikes, while maintaining safe operation within its thermal limits.

Does the TPS76630DRG4 require an external feedback resistor network?

No, the TPS76630DRG4 is a fixed 3.0V output variant. Pin 1 (NC/FB) is not internally connected and should be left floating or tied to GND for thermal improvement - no external resistors are needed or supported.

What output capacitor value is required for stable operation of the TPS76630DRG4?

The TPS76630DRG4 is stable with a minimum 2.2µF ceramic output capacitor. Larger values (e.g., 4.7µF–47µF) improve transient response and PSRR, but 2.2µF is sufficient for most applications and reduces cost and footprint.

How does the power-good (PG) pin function on the TPS76630DRG4?

The PG pin on the TPS76630DRG4 is an open-drain output that goes high when VOUT reaches 91–98.5% of 3.0V and remains asserted until VOUT drops below that threshold. An external pullup resistor is required; it enables reliable power-on reset and fault detection in host systems.

Is the TPS76630DRG4 compatible with lead-free PCB assembly processes?

Yes, the TPS76630DRG4 is RoHS-compliant and qualified for standard lead-free reflow profiles (J-STD-020). Its SOIC (D) package supports peak temperatures up to 260°C and is rated for moisture sensitivity level 1 (MSL-1), requiring no dry-bag storage or baking prior to assembly.