Texas Instruments TPS7A1130PDRVR

Overview

TPS7A1130PDRVR from Texas Instruments is a 500-mA, ultra-low dropout linear regulator (LDO) with dual-rail input architecture (IN + BIAS), supporting 0.75 V to 3.3 V input and fixed 3.0 V output. It delivers 1.5% output accuracy over load, line, and temperature (–40°C to +125°C), 140 mV max dropout at 500 mA (DRV package), and 1.6 µA typical IN-pin quiescent current - enabling high-efficiency power delivery to low-voltage cores in space-constrained portable electronics.

For engineers reviewing the TPS7A1130PDRVR datasheet, TPS7A1130PDRVR pinout, TPS7A1130PDRVR application, or TPS7A1130PDRVR equivalent, key selection criteria include LILO (low-input/low-output) operation capability, bias-rail dependency for sub-1-V output regulation, active output discharge behavior, thermal shutdown (160°C), and WSON-6 package compatibility with tight PCB layout constraints.

Technical Context

The TPS7A1130PDRVR implements a dual-supply LDO architecture where the IN pin supplies power to the pass element while the BIAS pin powers internal control circuitry - decoupling regulation performance from ultra-low VIN requirements. This enables stable 3.0 V output even when VIN is as low as 3.14 V (3.0 V + 140 mV dropout), provided VBIAS ≥ 1.7 V.

It integrates global UVLO (with independent rising/falling thresholds on IN and BIAS pins), foldback current limiting (990 mA typ. for DRV package), thermal shutdown, and an active pulldown circuit (120 Ω) for controlled output discharge during disable - all operating within a –40°C to +125°C junction temperature range.

Key Specifications

Pinout & Package

TPS7A1130PDRVR is housed in a 2.00-mm × 2.00-mm, 6-pin WSON (DRV) package with exposed thermal pad. The thermal pad must be connected to a large-area ground plane for optimal thermal performance (R_θJB = 41.1°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPL7407LPGQ (non-regulator) and TPS7A2030PDQNR (lower-current, single-rail LDO), the TPS7A1130PDRVR uniquely supports LILO operation via dedicated BIAS rail, delivers 500 mA with 140 mV dropout, and provides active output discharge - making it irreplaceable in high-efficiency, space-constrained, multi-rail portable designs.

Availability

TPS7A1130PDRVR is available at Aetrix Electronics and suitable for smart wearables, portable medical devices, and solid-state drives requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.

Supply support for TPS7A1130PDRVR 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 specializing in analog, embedded processing, and power management technologies, with leadership in high-reliability, low-power IC design for industrial, automotive, and consumer markets.

The TPS7A11 family is designed for ultra-low-voltage, ultra-low-dropout regulation in battery-powered portable electronics - specifically targeting applications needing sub-1-V input capability, dual-rail flexibility, and nanoscale quiescent current.

FAQ

What is the fixed output voltage of the TPS7A1130PDRVR?

The TPS7A1130PDRVR delivers a fixed 3.0 V output with ±1.5% accuracy over load, line, and temperature (–40°C to +125°C). This value is factory-trimmed and non-adjustable; no external resistors are required or supported. The "30" in the part number explicitly denotes the 3.0 V output variant within the TPS7A11 family.

Does the TPS7A1130PDRVR require both IN and BIAS supplies to operate?

Yes - the TPS7A1130PDRVR requires both IN and BIAS supplies to function. The IN pin powers the pass transistor, while the BIAS pin powers internal control circuitry. Both must exceed their respective UVLO thresholds (VIN > 675 mV, VBIAS > 1.54 V) simultaneously for regulation to begin. Omitting either rail prevents startup.

What is the maximum dropout voltage specification for the TPS7A1130PDRVR at full load?

The TPS7A1130PDRVR has a maximum dropout voltage of 140 mV at 500 mA output current in the DRV (WSON-6) package, measured at TJ = 125°C. This value reflects worst-case conditions; typical dropout is lower (e.g., 90 mV at 25°C). Dropout is defined as VIN – VOUT when VOUT drops 2% below nominal.

Can the TPS7A1130PDRVR be used without connecting the EN pin?

Yes - the EN pin may be left unconnected only if tied directly to IN or BIAS. However, TI specifies that connecting EN to IN is acceptable only when VIN > 0.9 V. For robust operation across full input range (0.75 V min), tie EN to BIAS (≥1.7 V) or use an external pullup. Leaving EN floating is not recommended and may cause erratic enable behavior.

Is active output discharge enabled by default on the TPS7A1130PDRVR?

Yes - active output discharge is integrated into the TPS7A1130PDRVR and automatically engages when the device is disabled (EN < 0.4 V) or enters thermal shutdown. It uses an internal 120-Ω pulldown resistor to discharge COUT; discharge time depends on COUT and parallel load resistance per t = 120·R_L/(120 + R_L)·C_OUT.