Texas Instruments TPS76201DBVRG4

Overview

TPS76201DBVRG4 from Texas Instruments is an adjustable low-dropout (LDO) voltage regulator delivering 100 mA output with 0.7 V to 5.5 V programmable output, 23 µA quiescent current at full load, 1 µA standby current, and operation across −40°C to 125°C junction temperature - deployed in sub-1.2-V DSP core supplies for portable battery-powered systems.

For engineers reviewing the TPS76201DBVRG4 datasheet, TPS76201DBVRG4 pinout, TPS76201DBVRG4 application, or TPS76201DBVRG4 equivalent, key selection criteria include ultralow quiescent current stability over load (10 µA–100 mA), PMOS pass element architecture enabling dropout voltage as low as ~120 mV at 100 mA, feedback-based output programming, and SOT-23-5 thermal performance under high ambient conditions.

Technical Context

The TPS76201DBVRG4 employs a PMOS pass transistor instead of conventional PNP, eliminating base-drive current and enabling stable 23 µA ground current across its full 10 µA–100 mA output range. Its internal 0.666 V reference feeds a precision feedback loop that supports output programming via external resistor divider.

It integrates overcurrent limiting (~350 mA typical), thermal shutdown (~165°C trip), and logic-controlled enable (EN pin) that reduces quiescent current to 1 µA. Dropout voltage remains ≤180 mV up to 100 mA across −40°C to 125°C, with line regulation of 0.1%/V and PSRR of 60 dB at 1 kHz.

Key Specifications

Pinout & Package

TPS76201DBVRG4 is housed in a 5-pin SOT-23 (DBV) package measuring 2.9 mm × 1.6 mm × 1.45 mm, with exposed pad not electrically connected. Thermal resistance is R_θJA = 180°C/W (JEDEC High-K board) and R_θJC = 65.8°C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS76201DBVT and TPS76201-Q1, the TPS76201DBVRG4 offers optimal balance of production scalability, commercial-grade reliability, and cost efficiency - making it the default choice for non-automotive high-volume portable and industrial designs requiring adjustable ultralow-I_Q regulation.

Availability

TPS76201DBVRG4 is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor nodes, and automotive body electronics requiring stable component supply, long-lifecycle availability, and RoHS-compliant SOT-23 packaging.

Supply support for TPS76201DBVRG4 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 connectivity technologies, with decades of leadership in power management ICs.

The TPS76201DBVRG4 belongs to TI's precision LDO regulator family designed specifically for ultralow-power, wide-input-voltage, and high-temperature portable and industrial applications - emphasizing quiescent current optimization and robust thermal behavior.

FAQ

What is the minimum input voltage required for TPS76201DBVRG4 to regulate a 0.7 V output at 100 mA?

The minimum input voltage is determined by dropout voltage plus output voltage. At 100 mA and 25°C, dropout is 120 mV; thus, minimum input is 0.7 V + 0.12 V = 0.82 V. However, per datasheet Note 4, absolute minimum input is 2.7 V or VO + 1 V - whichever is greater. Since VO + 1 V = 1.7 V < 2.7 V, the actual minimum is 2.7 V. The TPS76201DBVRG4 cannot regulate 0.7 V from inputs below 2.7 V.

Can TPS76201DBVRG4 be used with ceramic output capacitors?

Yes, multilayer ceramic capacitors (MLCCs) are acceptable for TPS76201DBVRG4 if their ESR falls within 0.3 Ω to 1.5 Ω at 100 kHz. Most standard 4.7 µF X5R/X7R MLCCs have ESR < 0.1 Ω and require a small series resistor (e.g., 0.5 Ω) to meet stability criteria. The TPS76201DBVRG4 datasheet explicitly validates solid tantalum, aluminum electrolytic, and MLCCs meeting these ESR constraints.

Does TPS76201DBVRG4 support reverse current protection?

No, the TPS76201DBVRG4 does not include reverse current blocking. Its PMOS pass transistor has an intrinsic back-channel diode that conducts from OUT to IN when V_IN < V_OUT (e.g., during power-down). This uncontrolled reverse current is not internally limited. For applications requiring reverse polarity or backfeed prevention, an external Schottky diode or ideal diode controller must be added in series with the input.

How does the enable (EN) pin behavior affect TPS76201DBVRG4 power sequencing?

The EN pin is active-high: applying ≥1.7 V enables regulation; ≤0.8 V disables output and reduces quiescent current to 1 µA. During startup, the TPS76201DBVRG4 exhibits ~150 µs output rise time (Figure 10). This controlled enable timing allows safe sequencing with upstream DC/DC converters or microcontroller GPIOs, preventing bus contention or inrush issues in multi-rail systems using the TPS76201DBVRG4.

What is the maximum allowable power dissipation for TPS76201DBVRG4 at 70°C ambient on a JEDEC High-K board?

Using the JEDEC High-K board data: R_θJA = 180°C/W, derating factor = 5.6 mW/°C above 25°C. At T_A = 70°C, allowable power is 555 mW − (70 − 25) × 5.6 mW = 555 − 252 = 303 mW. For example, at V_IN = 3.6 V, V_OUT = 1.0 V, I_OUT = 100 mA: P_D = (3.6 − 1.0) × 0.1 = 260 mW - within safe limit. Exceeding this risks thermal shutdown. The TPS76201DBVRG4 monitors junction temperature continuously to enforce this limit.