Texas Instruments TLV70533YFMT

Overview

TLV70533YFMT from Texas Instruments is a 3.3-V fixed-output, 200-mA low-dropout (LDO) linear regulator in a 4-pin PicoStar™ package (0.77 mm × 0.77 mm, 0.15-mm max height), featuring 0.5% typical output accuracy, 35 μA quiescent current, and 145 mV dropout at 200 mA - designed for power-sensitive RF and portable applications such as Bluetooth® and Zigbee® devices.

For engineers reviewing the TLV70533YFMT datasheet, TLV70533YFMT pinout, TLV70533YFMT application, or TLV70533YFMT equivalent, key selection criteria include ultra-low profile packaging, stability with only 0.1 μF ceramic output capacitance, high PSRR (70 dB at 1 kHz), thermal shutdown protection, and enable-controlled sequencing in space-constrained battery-powered systems.

Technical Context

The TLV70533YFMT employs a PMOS pass transistor architecture enabling low dropout voltage and input-to-output headroom as low as 145 mV at full load. Its error amplifier delivers 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 (VIH = 0.9 V, VIL = 0.4 V), and thermal shutdown at 160°C with hysteresis (140°C reset). The device achieves 70 dB PSRR at 1 kHz and 26.6 μVRMS integrated output noise (100 Hz–100 kHz) under 10 mA load.

Key Specifications

Pinout & Package

TLV70533YFMT is housed in a 4-pin PicoStar™ package (YFM), measuring 0.77 mm × 0.77 mm with maximum height of 0.15 mm - optimized for ultra-thin portable electronics and wearable form factors.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV70533YFMT, TPL72033PDQNR offers better size efficiency but sacrifices enable control and thermal safety, while MCP1703T-3302E/MB provides ultra-low IQ at the cost of regulation margin and robustness - making TLV70533YFMT the balanced choice for RF-sensitive, thermally demanding, and space-limited designs.

Availability

TLV70533YFMT is available at Aetrix Electronics and suitable for Bluetooth® devices, Zigbee® sensor networks, and WLAN add-on cards requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for TLV70533YFMT 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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, precision, and power efficiency.

The TLV705 series was engineered specifically for battery-powered portable electronics - prioritizing ultra-low IQ, miniature packaging, and RF-grade noise/PSRR performance in sub-5-V systems.

FAQ

What is the minimum input voltage required for TLV70533YFMT to maintain regulation?

The TLV70533YFMT requires VIN ≥ VOUT + VDO to regulate. With a fixed 3.3-V output and 145 mV typical dropout at 200 mA, the minimum functional input is 3.445 V. At lighter loads, dropout decreases - e.g., 105 mV at 150 mA yields 3.405 V minimum. Below 3.445 V, the device enters dropout mode with reduced PSRR and transient response.

Can TLV70533YFMT operate with a 0.1 μF output capacitor?

Yes - TLV70533YFMT is explicitly characterized and guaranteed stable with an effective output capacitance of ≥0.1 μF ceramic. This enables use of small, low-cost, high-bias-voltage-rated capacitors (e.g., 0201 100 nF X5R) without ESR requirements, simplifying layout and reducing BOM count versus traditional LDOs needing ≥1 μF.

Does TLV70533YFMT include thermal protection?

Yes - TLV70533YFMT integrates thermal shutdown circuitry that disables the output when junction temperature exceeds 160°C, with automatic recovery at 140°C. This protects against sustained overload or poor PCB thermal design. Combined with internal current limiting (260–550 mA), it ensures safe operation under fault conditions without external components.

What is the enable pin behavior for TLV70533YFMT?

The EN pin is active-high with VIH(min) = 0.9 V and VIL(max) = 0.4 V. Driving EN ≥0.9 V enables regulation; driving EN ≤0.4 V places TLV70533YFMT in shutdown, reducing ground current to 1 μA (typical). If enable control is unnecessary, EN may be tied directly to VIN - no pull-up resistor required.

How does TLV70533YFMT compare to the TLV705P variant?

TLV70533YFMT belongs to the standard TLV705 series (not TLV705P). It lacks the active pulldown circuit found in TLV705P variants, meaning its output discharges only through the load after shutdown. TLV705P adds a 120-Ω internal pulldown to rapidly discharge VOUT - useful for systems requiring fast output decay. TLV70533YFMT is selected when pulldown is unnecessary and cost/footprint optimization is prioritized.