Texas Instruments TLV70032QDDCRQ1

Overview

TLV70032QDDCRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified 200-mA low-dropout linear regulator with fixed 3.2-V output, 2% DC accuracy, 31-μA quiescent current, and 175-mV dropout at 200 mA - designed for second-stage power supply in infotainment and ADAS domain controllers requiring stable low-noise bias under wide input voltage (2 V to 5.5 V) and temperature (–40°C to 125°C) ranges.

For engineers reviewing the TLV70032QDDCRQ1 datasheet, TLV70032QDDCRQ1 pinout, TLV70032QDDCRQ1 application, or TLV70032QDDCRQ1 equivalent, key selection considerations include its SOT-5 (DDC) package thermal performance (R_θJA = 262.8°C/W), enable-pin compatibility with TTL/CMOS logic, stability with ≥0.1-μF ceramic output capacitance, and integrated thermal shutdown and overcurrent protection.

Technical Context

The TLV70032QDDCRQ1 employs a PMOS pass transistor architecture enabling low dropout voltage and high PSRR (68 dB at 1 kHz), with internal band-gap reference and error amplifier ensuring 2% output accuracy across –40°C to 125°C ambient. Its active-high EN pin supports shutdown mode with ground current reduced to 1 μA nominal.

It features undervoltage lockout (UVLO) activation at ~1.9 V, thermal shutdown at 160°C (reset at 140°C), and internal current limiting (220–550 mA). The device operates stably with effective output capacitance as low as 0.1 μF, supporting cost-effective X5R/X7R ceramics while maintaining transient response integrity.

Key Specifications

Pinout & Package

SOT-5 (DDC) package, 2.90 mm × 1.60 mm body size, 5-pin surface-mount with exposed pad for thermal enhancement.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV70033QDDCRQ1, TLV70032QDDCRQ1 offers tighter alignment with 3.2-V ADC references and low-voltage FPGAs; versus TLS850F0TESV50, it provides lower cost and smaller footprint where diagnostics are handled externally.

Availability

TLV70032QDDCRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, telematics always-on domains, and gateway ECU subsystems requiring stable component supply with full AEC-Q100 traceability and long-term lifecycle support.

Supply support for TLV70032QDDCRQ1 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 and embedded processing technologies, with leadership in automotive power management and signal chain solutions.

The TLV700xx-Q1 product line delivers high-PSRR, low-I_Q LDOs optimized for second-stage regulation in automotive electronics - targeting infotainment, ADAS, body control, and telematics applications demanding AEC-Q100 reliability and thermal robustness.

FAQ

What is the output voltage tolerance of TLV70032QDDCRQ1 over temperature?

The TLV70032QDDCRQ1 maintains ±2% DC output accuracy across its full operating ambient temperature range of –40°C to 125°C, as specified in the Electrical Characteristics table under "V_OUT DC output accuracy" with test condition V_OUT ≥1 V. This tolerance includes initial calibration error, line/load regulation, and thermal drift - verified per AEC-Q100 stress testing protocols.

Can TLV70032QDDCRQ1 operate with a 2.5-V input while delivering 3.2 V?

No, TLV70032QDDCRQ1 cannot regulate 3.2 V from a 2.5-V input. Its minimum input voltage is 2 V, but the dropout voltage is 175 mV at 200 mA; thus, minimum valid input is 3.375 V (3.2 V + 175 mV). At 2.5 V input, the device enters dropout and outputs ≈2.325 V (2.5 V – 175 mV), failing regulation. Input must exceed V_OUT + V_DO for stable operation.

Is an input capacitor required for TLV70032QDDCRQ1 stability?

An input capacitor is not required for loop stability of TLV70032QDDCRQ1, but TI recommends a 0.1–1 μF low-ESR ceramic capacitor between IN and GND. This improves transient response, reduces noise coupling from upstream sources, and mitigates instability caused by source impedance >2 Ω - especially critical in automotive wiring harness environments with inductive parasitics.

What is the maximum allowable output capacitance for TLV70032QDDCRQ1?

TLV70032QDDCRQ1 has no upper limit on output capacitance; it remains stable with values up to 100 μF. However, larger capacitors increase startup time and transient undershoot recovery duration. For optimal trade-off between stability and dynamic response, TI recommends 1 μF X5R/X7R ceramic - matching the value used in all characterization data for TLV70032QDDCRQ1.

Does TLV70032QDDCRQ1 support reverse-voltage protection?

TLV70032QDDCRQ1 does not include reverse-voltage protection. Its internal PMOS pass transistor contains a body diode that conducts uncontrolled current if V_OUT exceeds V_IN. In applications with potential reverse bias (e.g., hot-swap, dual-supply systems), TI advises adding an external series Schottky diode or MOSFET-based reverse-polarity circuit - as noted in Section 7.3.1 of the TLV700xx-Q1 datasheet.