Texas Instruments TLV70533PYFPR

Overview

TLV70533PYFPR from Texas Instruments is a 3.3-V fixed-output, 200-mA low-dropout (LDO) linear regulator in a 0.77-mm × 0.77-mm DSBGA package. It delivers 0.5% output accuracy, 145-mV dropout at 200 mA, 35-μA quiescent current, and 70-dB PSRR at 1 kHz-designed for powering RF-sensitive subsystems in compact battery-operated devices such as Bluetooth headsets and Zigbee sensor nodes.

For engineers reviewing the TLV70533PYFPR datasheet, TLV70533PYFPR pinout, TLV70533PYFPR application, or TLV70533PYFPR 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/overcurrent protection, and compatibility with low-voltage GPIO enable signals (0.9-V turn-on threshold).

Technical Context

The TLV70533PYFPR uses a PMOS pass transistor to achieve low dropout and maintain regulation down to 2 V input while delivering 3.3 V output. Its error amplifier enables ±0.5% DC accuracy across –40°C to +125°C and supports zero-load regulation.

It integrates undervoltage lockout (1.9-V rising threshold), active-high enable logic (0.9-V min high, 0.4-V max low), and thermal shutdown (160°C trip, 140°C reset). The device operates stably with 0.1-μF to 10-μF ceramic output capacitors and requires no external compensation.

Key Specifications

Pinout & Package

TLV70533PYFPR is housed in a 4-pin, 0.77-mm × 0.77-mm, 0.15-mm maximum height DSBGA (YFPR) package-optimized for space-constrained portable designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLC750M33QDCKRQ1 and TPS7A0533PDQNR, TLV70533PYFPR offers the best balance of ultra-low profile, 70-dB PSRR, and 145-mV dropout-making it optimal for space-constrained consumer wireless devices where RF noise immunity and battery efficiency are co-critical.

Availability

TLV70533PYFPR is available at Aetrix Electronics and suitable for wireless handsets, smart sensors, and Bluetooth audio accessories requiring stable component supply across high-mix, low-volume production runs.

Supply support for TLV70533PYFPR 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The TLV705 series was developed specifically for ultra-compact, battery-powered portable electronics-emphasizing minimal footprint, low IQ, low noise, and robust transient response in sub-1-mm² packages.

FAQ

What is the minimum input voltage required for TLV70533PYFPR to regulate 3.3 V at full 200 mA load?

The TLV70533PYFPR requires a minimum input voltage of 3.445 V to maintain 3.3 V output at 200 mA, based on its 145-mV dropout specification. Below this, the device enters dropout mode and VOUT drops linearly with VIN. Operation is guaranteed from 2 V to 5.5 V, but regulation to 3.3 V only occurs when VIN exceeds VOUT + VDO across temperature and process variation.

Can TLV70533PYFPR operate with a 0.1-μF ceramic output capacitor, and why is this significant?

Yes, TLV70533PYFPR is stable with a minimum 0.1-μF ceramic output capacitor-verified across all operating conditions per TI SBVS151F datasheet Section 6.5. This enables use of small, low-cost, high-bias-stability capacitors (e.g., 0402 X5R/X7R), reducing BOM cost and PCB area versus LDOs requiring ≥2.2 μF, and simplifying layout in dense portable designs.

Does TLV70533PYFPR include reverse-voltage protection, and what precautions apply if VOUT exceeds VIN?

No, TLV70533PYFPR does not include reverse-voltage protection. Its PMOS pass transistor has an intrinsic body diode that conducts uncontrolled current from VOUT to VIN if VOUT > VIN. For applications with possible back-driving (e.g., hot-swap, shared rails), TI recommends adding an external Schottky diode or MOSFET-based reverse-blocking circuit to limit reverse current to ≤5% of rated output current.

How does the enable pin (EN) of TLV70533PYFPR interface with low-voltage microcontroller GPIOs?

The EN pin of TLV70533PYFPR has a 0.9-V minimum high threshold and draws only 0.01 μA, making it directly compatible with 1.2-V and 1.8-V GPIO outputs without level shifters or pull-up resistors. When driven below 0.4 V, the device enters shutdown with 1-μA ground current-ideal for energy-efficient wake/sleep control in battery-powered systems.

What thermal performance can be expected from TLV70533PYFPR in a typical 2-layer PCB layout?

In a standard 2-layer PCB with 1-in² copper pour on both sides connected to GND, TLV70533PYFPR (DSBGA YFPR) exhibits a junction-to-ambient thermal resistance (RθJA) of 160°C/W. At 200 mA load with 3.445 V input (145-mV dropout), power dissipation is 29 mW, resulting in ~4.6°C junction rise above ambient-well within safe operating limits even at +85°C ambient.