Texas Instruments TLV75530PDRVR

Overview

TLV75530PDRVR from Texas Instruments is a 3.0V fixed-output, 500mA low-dropout linear regulator in a 5-pin SOT-23-5 (DBV) package. It operates from 1.45V to 5.5V input, delivers ±1% output accuracy at 85°C, features 25μA typical quiescent current, and maintains regulation with only 1μF ceramic output capacitance - ideal for powering MCU core rails in space-constrained portable electronics.

For engineers reviewing the TLV75530PDRVR datasheet, TLV75530PDRVR pinout, TLV75530PDRVR application, or TLV75530PDRVR equivalent, key selection criteria include dropout voltage at full load (238mV max @ 500mA), active output discharge during shutdown, foldback current limiting, thermal shutdown (165°C), and compatibility with low-ESR ceramic capacitors without external compensation.

Technical Context

The TLV75530PDRVR uses a PMOS pass transistor architecture enabling ultra-low dropout and high PSRR (46dB @ 100kHz). Its internal bandgap reference and error amplifier deliver 1% output accuracy across temperature, while integrated soft-start ensures monotonic V_OUT rise and limits inrush current during power-up.

Functional modes include normal regulation, dropout (where V_OUT tracks V_IN), and disabled state with active pulldown (120Ω internal resistor to GND). Protection features include undervoltage lockout (1.21–1.44V threshold), foldback current limit, and thermal shutdown with 10°C hysteresis.

Key Specifications

Pinout & Package

TLV75530PDRVR is packaged in a 5-pin SOT-23-5 (DBV) case measuring 2.9mm × 2.8mm, with standard lead pitch and exposed pad not present (DYD variant has thermal pad; DBV does not).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV75530PDRVR, TLC75530QDBVRQ1 adds automotive qualification at identical performance, while MCP1755-3302E/DB offers lower IQ but lacks critical protection features and delivers 3.3V instead of 3.0V - requiring schematic and layout review for substitution.

Availability

TLV75530PDRVR is available at Aetrix Electronics and suitable for portable MCU power, camera module supply, white goods control boards, USB-powered IoT hubs, and industrial sensor nodes requiring stable component supply with consistent parametric performance and long-term manufacturability.

Supply support for TLV75530PDRVR 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 LDO design expertise and broad industrial qualification coverage.

The TLV755P series was designed for ultra-small, low-I_Q power delivery in battery-operated and space-constrained systems - targeting modern MCUs, imaging sensors, and portable consumer electronics needing high accuracy and minimal solution footprint.

FAQ

What is the maximum dropout voltage specification for TLV75530PDRVR at 500mA load?

The maximum dropout voltage for TLV75530PDRVR is 238mV at 500mA output current, measured under −40°C to +85°C junction temperature with 3.3V output configuration. This value applies specifically to the DBV (SOT-23-5) package and ensures reliable regulation even with marginal input headroom - critical for single-cell Li-ion or low-voltage system rail applications where TLV75530PDRVR is commonly deployed.

Does TLV75530PDRVR require an external capacitor on the EN pin for stable operation?

No, TLV75530PDRVR does not require an external capacitor on the EN pin. The EN pin is a high-impedance CMOS input with leakage current ≤10nA at 5.5V, and its threshold is internally defined (V_HI = 1V, V_LO = 0.3V). Adding capacitance may slow enable/disable timing and is unnecessary for noise immunity - proper PCB layout and routing away from noisy signals suffice for robust TLV75530PDRVR operation.

Can TLV75530PDRVR operate with a 0.47μF output capacitor?

TLV75530PDRVR is specified to be stable with ≥1μF ceramic output capacitance; 0.47μF is below the minimum recommended value and may cause instability or excessive output voltage overshoot during load transients. While some designs might appear functional with 0.47μF due to capacitor derating effects, TI's datasheet explicitly requires ≥1μF for guaranteed stability - always use 1μF or greater X5R/X7R ceramic capacitors for reliable TLV75530PDRVR performance.

What happens to the output of TLV75530PDRVR when the EN pin is pulled low?

When the EN pin of TLV75530PDRVR is pulled below 0.3V, the device enters shutdown mode: the pass transistor turns off, internal bias circuits deactivate, and an internal 120Ω pulldown resistor actively discharges the OUT pin to GND. This ensures rapid, predictable output decay - eliminating floating voltages and enabling safe sequencing in multi-rail systems where TLV75530PDRVR supplies critical logic domains.

Is TLV75530PDRVR compatible with ceramic capacitors having 20% DC bias derating?

Yes, TLV75530PDRVR is fully compatible with X5R/X7R ceramic capacitors subject to DC bias derating, provided the effective capacitance at operating voltage remains ≥1μF. For example, a 2.2μF 0603 X7R capacitor biased at 3.0V typically retains ~1.3–1.5μF - satisfying the stability requirement. Always verify effective C_OUT using manufacturer DC bias curves before finalizing TLV75530PDRVR designs.