Texas Instruments TLV70717DQNT

Overview

TLV70717DQNT from Texas Instruments is a 200-mA, low-quiescent-current (25 µA), low-noise (45 µVRMS), fixed 1.7-V output LDO regulator in a 1-mm × 1-mm X2SON (DQN) package. It delivers ±0.5% DC accuracy, supports 0.1-µF minimum output capacitance, and features 70 dB PSRR at 100 Hz - optimized for powering noise-sensitive RF blocks in portable electronics.

For engineers reviewing the TLV70717DQNT datasheet, TLV70717DQNT pinout, TLV70717DQNT application, or TLV70717DQNT equivalent, key selection criteria include dropout voltage (≤250 mV at 150 mA for 1.7 VOUT), thermal shutdown/overcurrent protection, EN pin logic thresholds (VIH = 0.9 V, VIL = 0.4 V), and stability with ultra-small ceramic capacitors.

Technical Context

The TLV70717DQNT uses a PMOS pass transistor architecture enabling low dropout and fast load transient response (<100 µs startup time). Its internal bandgap reference and error amplifier deliver tight regulation across –40°C to +125°C junction temperature, with no load required for specified accuracy.

Unlike standard LDOs, it achieves stable operation with only 0.1 µF effective output capacitance - reducing BOM cost and PCB area while maintaining 50 dB PSRR at 1 MHz and 45 µVRMS integrated noise (100 Hz–100 kHz) - critical for powering PLLs, RF transceivers, and precision analog sensors.

Key Specifications

Pinout & Package

TLV70717DQNT is housed in a 4-pin, 1.0 mm × 1.0 mm X2SON (DQN) package with wettable flank terminations for automated optical inspection. The exposed thermal pad (pin 5) must be soldered to PCB ground for thermal performance (R_θJA = 208.1°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV70717DQNT, TPL72017PDQNR trades 10× lower quiescent current for 20% higher dropout, while MCP1700T-1702E/TT offers lower unit cost but sacrifices PSRR, noise performance, and package miniaturization - making TLV70717DQNT optimal for space- and noise-constrained portable RF systems.

Availability

TLV70717DQNT is available at Aetrix Electronics and suitable for smartphone RF modules, wearable health sensors, wireless gaming peripherals, and set-top box audio subsystems requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TLV70717DQNT 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 LDO design expertise for portable and industrial applications.

The TLV707 series was engineered specifically for battery-powered RF and sensor systems demanding ultra-low I_Q, minimal footprint, and high PSRR - addressing the needs of next-generation wearables, IoT endpoints, and mobile connectivity devices.

FAQ

What is the minimum input voltage required for TLV70717DQNT to regulate 1.7 V output?

The TLV70717DQNT requires a minimum input voltage of 2.0 V under recommended operating conditions. At 150 mA load, its dropout voltage is 250 mV, meaning VIN must be ≥1.95 V to maintain regulation - but TI specifies 2.0 V as the absolute minimum to ensure performance across temperature and process variation. Below 2.0 V, output voltage drops linearly with input.

Can TLV70717DQNT operate without an output capacitor?

No, TLV70717DQNT requires a minimum effective output capacitance of 0.1 µF for stability, as confirmed in the datasheet's Electrical Characteristics and Typical Application sections. Omitting C_OUT causes oscillation and unregulated output. Ceramic capacitors are mandatory - electrolytic or tantalum types are not supported due to ESR and bias voltage limitations.

Does TLV70717DQNT include reverse-voltage protection?

TLV70717DQNT does not include reverse-voltage protection. Its PMOS pass transistor has an intrinsic body diode that conducts if V_OUT exceeds V_IN. During such reverse-bias conditions, current is unlimited and may damage the device or load. External protection - such as a series Schottky diode or dedicated reverse-protection IC - is required in systems prone to back-driving.

What is the thermal performance of TLV70717DQNT in its DQN package?

In the 1-mm × 1-mm DQN package, TLV70717DQNT has a junction-to-ambient thermal resistance (R_θJA) of 208.1°C/W with standard JEDEC 2-layer board layout. With proper thermal pad soldering to a 1-in² copper pour, junction temperature rise remains within safe limits up to ~150 mA continuous load at +25°C ambient - exceeding its 200-mA rating only with enhanced PCB cooling.

Is TLV70717DQNT pin-compatible with other TLV707 variants?

Yes, all TLV707 and TLV707P variants in the DQN (X2SON) package share identical 4-pin pinout (OUT, GND, EN, IN) and footprint. TLV70717DQNT is functionally identical to TLV70717DQN except for the addition of pulldown circuitry in the 'P' suffix version - so TLV70717DQNT (non-P) omits the active pulldown resistor but retains full pin compatibility and electrical equivalence for enable/control functions.