Texas Instruments TLV70536YFMR

Overview

TLV70536YFMR from Texas Instruments is a 3.6-V fixed-output, 200-mA low-dropout (LDO) linear regulator in a 0.77-mm × 0.77-mm PicoStar™ package. It delivers 0.5% output accuracy, 35-μA quiescent current, 145-mV dropout at 200 mA, and 70-dB PSRR at 1 kHz-designed for power-sensitive RF and portable applications such as Bluetooth® and Zigbee® modules.

For engineers reviewing the TLV70536YFMR datasheet, TLV70536YFMR pinout, TLV70536YFMR application, or TLV70536YFMR equivalent, key selection criteria include ultra-low profile packaging (0.15-mm max height), stability with only 0.1-μF ceramic output capacitance, thermal shutdown protection, and enable-pin compatibility with low-voltage GPIOs (EN high threshold = 0.9 V).

Technical Context

The TLV70536YFMR uses a PMOS pass transistor to achieve low dropout and maintain regulation down to (VIN – VOUT) = 145 mV at full load. Its error amplifier enables 0.5% DC accuracy across –40°C to +125°C and supports zero-load regulation.

It integrates undervoltage lockout (UVLO) triggering at 1.9 V, active-high enable logic (0.9 V turn-on, 0.4 V shutdown), and internal current limiting (typ. 400 mA). The device remains stable with ≥0.1 μF effective ceramic output capacitance and exhibits 26.6–34.1 μVRMS integrated noise (100 Hz–100 kHz).

Key Specifications

Pinout & Package

TLV70536YFMR is housed in a 4-pin, 0.77-mm × 0.77-mm PicoStar™ package (YFM), with 0.15-mm maximum height-optimized for ultra-thin handheld and wearable designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLS850F3TLE and AP7361D-36SG-7, TLV70536YFMR offers the smallest footprint, lowest IQ, and most complete protection set (EN, UVLO, thermal shutdown, current limit) in a package suitable for space-constrained portable designs-making it optimal for Bluetooth®, Zigbee®, and wearable applications where size and battery life are primary constraints.

Availability

TLV70536YFMR is available at Aetrix Electronics and suitable for Bluetooth® audio modules, Zigbee® sensor nodes, and Li-ion powered wearables requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TLV70536YFMR 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 digital signal solutions for industrial, automotive, and personal electronics markets.

The TLV705 series was designed specifically for ultra-low-power, space-constrained portable devices-emphasizing minimal quiescent current, sub-millimeter packaging, and robust performance under dynamic load and line conditions.

FAQ

What is the minimum input voltage required for TLV70536YFMR to regulate 3.6 V at 200 mA?

The TLV70536YFMR requires a minimum input voltage of 3.745 V to maintain regulation at 200 mA, calculated as V_OUT + V_DO = 3.6 V + 0.145 V. This allows reliable operation from a single-cell Li-ion battery down to ~3.0 V under light loads, but full 200-mA capability is retained only above 3.745 V. Below this, the device enters dropout mode with reduced PSRR and transient response.

Can TLV70536YFMR operate without an enable signal connected?

Yes, TLV70536YFMR can operate without an external enable signal by connecting the EN pin directly to VIN. This configures the device for always-on operation, drawing 35 μA quiescent current in regulation. When EN is left floating, the internal pull-down may not guarantee shutdown-TI explicitly recommends tying EN to VIN or a controlled logic signal to ensure deterministic behavior.

What output capacitor value is required for stability with TLV70536YFMR?

TLV70536YFMR is stable with a minimum effective output capacitance of 0.1 μF ceramic (X5R/X7R). TI recommends a 1-μF ceramic capacitor for optimal transient response and noise filtering. Capacitor voltage rating should exceed the 3.6-V output by ≥50% (e.g., 6.3-V rated) to maintain effective capacitance under DC bias.

Does TLV70536YFMR include reverse-voltage protection?

No, TLV70536YFMR does not include reverse-voltage protection. Its PMOS pass transistor contains an intrinsic body diode that conducts uncontrolled current if VOUT exceeds VIN. For applications with possible reverse bias (e.g., hot-swap, backup battery), TI recommends adding an external Schottky diode in series with VIN or a dedicated reverse-protection MOSFET circuit.

How does TLV70536YFMR handle thermal overload conditions?

TLV70536YFMR incorporates thermal shutdown protection that activates at +160°C junction temperature and resets at +140°C. During sustained overload, the device cycles between current-limit operation and thermal shutdown-dissipating power until temperature drops below the reset threshold. This prevents permanent damage but requires careful PCB thermal design (e.g., thermal vias to inner ground planes) to avoid repeated cycling in high-ambient environments.