Texas Instruments TPS780330200DDCR

Overview

TPS780330200DDCR from Texas Instruments is a 150-mA ultralow-power LDO regulator with pin-selectable dual-level output voltage (3.3 V high / 2.0 V low), 500 nA quiescent current, 200 mV dropout at 150 mA, ±3% output accuracy over load/line/temperature, and stable operation with 1.0-μF ceramic output capacitor. It enables dynamic voltage scaling in battery-powered microcontroller systems such as TI MSP430-based sensor nodes.

For engineers reviewing the TPS780330200DDCR datasheet, TPS780330200DDCR pinout, TPS780330200DDCR application, or TPS780330200DDCR equivalent, key selection criteria include dual-voltage DVS capability, sub-1-μA shutdown current (18 nA typical), CMOS-compatible enable logic, thermal shutdown protection, and TSOT23-5 package compatibility with space-constrained portable designs.

Technical Context

The TPS780330200DDCR implements factory-programmed EPROM-based dual-output voltage selection via the VSET pin: driving VSET < 0.4 V selects 2.0 V (low), while driving VSET > 1.2 V selects 3.3 V (high). Its internal bandgap reference and error amplifier maintain regulation across –40°C to 125°C junction temperature.

It features active-pull-down logic on EN for CMOS-level compatibility, integrated thermal shutdown (trip at 160°C, reset at 140°C), and current limiting (230 mA typical). The device operates without pulldown circuitry at OUT, allowing the output capacitor to serve as temporary backup power during battery replacement.

Key Specifications

Pinout & Package

TPS780330200DDCR is housed in a 5-pin TSOT23-5 (DDC) package measuring 2.90 mm × 1.60 mm, with exposed pad not present. Pin 1 is IN; Pin 2 is GND; Pin 3 is EN; Pin 4 is VSET; Pin 5 is OUT.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS780330220DDCR, the TPS780330200DDCR provides tighter low-voltage headroom (2.0 V vs 2.2 V) for deeper power savings; versus TPS781330200DDCR, it delivers 2× lower quiescent current-critical for decade-long battery operation in maintenance-free deployments.

Availability

TPS780330200DDCR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical devices, and low-power wearables requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TPS780330200DDCR 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 and embedded processing technologies, with leadership in low-power design and precision power management.

The TPS780 product line was engineered specifically for ultralow-power battery-operated systems-emphasizing nanoscale quiescent current, dual-voltage dynamic scaling, and robust integration for MSP430 and similar ultra-low-energy MCUs.

FAQ

What output voltages does the TPS780330200DDCR support?

The TPS780330200DDCR supports two factory-programmed output voltages: 3.3 V (selected when VSET pin is driven >1.2 V) and 2.0 V (selected when VSET pin is driven <0.4 V). These values are permanently stored in on-chip EPROM and cannot be altered. The device does not support adjustable output or additional voltage combinations beyond this dual-level configuration.

How does the TPS780330200DDCR achieve 500 nA quiescent current?

The TPS780330200DDCR achieves 500 nA quiescent current through proprietary biasing architecture and optimized internal transistor sizing that minimizes leakage across process/voltage/temperature corners. This specification is measured under nominal conditions (TJ = 25°C, VIN = VOUT(nom) + 0.5 V, IOUT = 100 μA) and remains valid across the full –40°C to 125°C operating range per datasheet Section 6.5.

Can the TPS780330200DDCR be used with input voltages below 2.2 V?

No. The TPS780330200DDCR has a minimum recommended input voltage of 2.2 V per Section 6.3 of the datasheet. Operation below this violates recommended operating conditions and may result in loss of regulation, increased dropout, or undefined behavior-especially when attempting to regulate 2.0 V output. For sub-2.2 V inputs, alternative regulators such as TPS7A05 should be evaluated.

Is an external capacitor required on the VSET pin of the TPS780330200DDCR?

No external capacitor is required on the VSET pin. The VSET pin is a digital control input with low input current (70 nA max), and its logic threshold is internally defined (0.4 V low / 1.2 V high). A clean, noise-immune DC voltage source-such as a GPIO or resistor divider-is sufficient. Adding capacitance may slow transition timing and is not recommended unless explicitly required for noise filtering in high-noise environments.

Does the TPS780330200DDCR include reverse-current protection?

The TPS780330200DDCR does not include active reverse-current protection. However, its architecture inherently prevents significant reverse current flow due to the PMOS pass element topology and absence of output pulldown circuitry. When VIN is removed while VOUT remains biased (e.g., by a large output capacitor), only leakage-level reverse current (<100 nA) flows-well within safe limits for most battery-backed systems.