My Inquiry
My Account
Texas Instruments TPS71933-28DRVT
- Part No.:
- TPS71933-28DRVT
- Manufacturer:
- Texas Instruments
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS71933-28DRVT.pdf
- Description:
- IC REG LIN 3.3V/2.8V 200MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:496
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS71933-28DRVT from Texas Instruments is a dual-output, 200mA low-noise LDO regulator with independent enables, delivering fixed 3.3V and 2.8V outputs in a 2mm × 2mm SON-6 package. It features 70µVRMS output noise, 65dB PSRR at 1kHz, 230mV dropout at 200mA, and active pulldown on both outputs for fast discharge-ideal for powering RF and analog sections in wireless handsets.
For engineers reviewing the TPS71933-28DRVT datasheet, TPS71933-28DRVT pinout, TPS71933-28DRVT application, or TPS71933-28DRVT equivalent, key selection criteria include dual-rail sequencing capability, sub-100µA quiescent current with both LDOs enabled, ceramic capacitor stability (≥1µF), and thermal shutdown/UVLO protection across –40°C to +125°C.
Technical Context
The TPS71933-28DRVT integrates two independent PMOS-based LDOs sharing a common input but with separate EN1/EN2 controls and dedicated OUT1/OUT2 pins. Each regulator uses precision bandgap reference and feedback loop to maintain ±3% output accuracy over line, load, temperature, and process variations.
It employs an innovative low-current mode for stable regulation down to zero load, supports ultra-low headroom operation (VIN ≥ 2.7V), and includes active pulldown circuitry on both outputs-enabling rapid discharge during shutdown without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltages | Fixed 3.3V (OUT1) and 2.8V (OUT2); factory-programmed via EEPROM for precise dual-rail generation |
| Max output current | 200mA per channel; internally current-limited to 240–575mA depending on VIN and temperature |
| Dropout voltage | 230mV typical at 200mA; enables operation with minimal VIN–VOUT margin (e.g., 3.53V input for 3.3V rail) |
| PSRR | 65dB at 1kHz, 44dB at 1MHz; suppresses switching noise from upstream DC/DC converters |
| Output noise | 70µVRMS (100Hz–100kHz); critical for noise-sensitive RF/analog circuits like WLAN transceivers |
| Quiescent current | 90µA typical with both LDOs enabled; extends battery life in always-on portable systems |
| Enable logic | Active-high EN1/EN2 compatible with 1.2V–6.5V logic; supports independent power sequencing |
Pinout & Package
TPS71933-28DRVT is packaged in a 2mm × 2mm WSON-6 (DRV) package with exposed thermal pad connected to GND. Pin 1 is marked by a dot; top-side view follows standard DRV orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 | Regulator 1 output | Delivers fixed 3.3V; requires ≥1µF ceramic capacitor to GND for stability and transient response |
| IN | Input supply | Common input for both LDOs; accepts 2.7V–6.5V; benefits from local 0.1–1µF bypass capacitor |
| OUT2 | Regulator 2 output | Delivers fixed 2.8V; independently regulated; same capacitor requirement as OUT1 |
| EN2 | Enable for OUT2 | Drives high (>1.25V) to activate 2.8V rail; low (<0.4V) places OUT2 in shutdown with active pulldown |
| GND | Ground reference | Common ground for both regulators; thermal pad must be soldered to PCB ground plane for thermal performance |
| EN1 | Enable for OUT1 | Drives high (>1.25V) to activate 3.3V rail; low (<0.4V) shuts down OUT1 with active pulldown |
Key Features
| Feature | Design Value |
|---|---|
| Independent enable control | EN1 and EN2 allow flexible power sequencing-e.g., bring up 2.8V rail before 3.3V for interface compliance |
| Active output pulldown | Internally discharges both OUT1 and OUT2 during shutdown, eliminating need for external bleed resistors |
| Stable with 1µF ceramic caps | Eliminates requirement for large tantalum or aluminum electrolytics-reducing board area and cost |
| Ultra-low noise | 70µVRMS output noise enables clean supply for VCOs, ADCs, and RF front-ends without additional filtering |
| Wide input range | 2.7V–6.5V input supports single-cell Li-ion (3.0–4.2V), USB (5V), or multi-cell configurations |
Applications
| Cellular Camera Module Power | WLAN Baseband + RF Supply |
|---|---|
Use Scenario: Dual-rail power for image sensor (2.8V) and ISP core (3.3V) in smartphone camera modules. IC Role / Device Role / Timing Role: Provides tightly regulated, low-noise, sequenced supplies with independent enable control for power-up coordination. Use Value: Prevents sensor reset glitches during ISP initialization; active pulldown ensures clean power-down without residual voltage on sensor I/O lines. | Use Scenario: Simultaneous 3.3V (baseband SoC) and 2.8V (RF transceiver) rails in IEEE 802.11n/ac client devices. IC Role / Device Role / Timing Role: Delivers isolated, low-PSRR-suppressed supplies to minimize coupling between digital baseband and sensitive RF receive paths. Use Value: 65dB PSRR at 1kHz rejects DC/DC ripple from shared input; 70µVRMS noise preserves EVM and receiver sensitivity. |
| Bluetooth® Audio Headset Core | Handheld Medical Sensor Interface |
Use Scenario: Powering Bluetooth audio SoC (3.3V) and MEMS microphone bias (2.8V) in compact wearables. IC Role / Device Role / Timing Role: Dual LDO with ultra-low quiescent current (90µA) and zero-load stability enables long standby time. Use Value: Sub-100µA total IQ extends battery life beyond 7 days in intermittent-use devices; small 2mm × 2mm footprint fits tight form factors. | Use Scenario: Precision analog front-end (2.8V) and microcontroller (3.3V) in portable ECG or pulse oximeter units. IC Role / Device Role / Timing Role: Supplies low-noise, thermally robust power under varying ambient conditions (–40°C to +85°C). Use Value: ±3% output accuracy and thermal shutdown (+160°C trip) ensure clinical-grade reliability; 125°C max junction rating supports sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS71933-28DRVR | Same electrical specs and pinout; differs only in reel quantity (3000 vs. 250 pieces) and packaging format | No functional difference; suitable for high-volume production runs requiring full reels | Select DRVR for automated SMT assembly with tape-and-reel feeders; DRVT preferred for prototyping and low-volume builds |
| TPS71833-28DRVT | Lacks active pulldown circuitry; higher ground current (250µA vs. 90µA) with both LDOs enabled; identical pinout and package | Not suitable where fast output discharge is required (e.g., hot-swap, rail sequencing with hold-off) | Choose TPS71833-28DRVT only if active pulldown is unnecessary and lower cost is prioritized over discharge speed and IQ |
Compared with TPS71933-28DRVR, the TPS71933-28DRVT offers identical performance in a smaller reel-ideal for NPI and qualification. Versus TPS71833-28DRVT, it delivers critical active pulldown and 60% lower quiescent current, enabling cleaner shutdown and longer battery runtime.
Availability
TPS71933-28DRVT is available at Aetrix Electronics and suitable for cellular camera modules, WLAN baseband systems, Bluetooth audio headsets, and handheld medical sensors requiring stable component supply with guaranteed long-term availability.
Supply support for TPS71933-28DRVT 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.
The TPS719xx family was engineered specifically for space-constrained, battery-powered wireless devices demanding dual-rail, low-noise, low-IQ regulation with robust protection features.
FAQ
What are the exact output voltages of the TPS71933-28DRVT?
The TPS71933-28DRVT provides factory-programmed fixed outputs: OUT1 delivers 3.3V and OUT2 delivers 2.8V, both with ±3% accuracy over temperature, line, and load. These values are permanently stored in on-chip EEPROM and cannot be adjusted externally. The "33" and "28" in the part number directly encode these nominal voltages.
Does the TPS71933-28DRVT require external components for stability?
No, the TPS71933-28DRVT is stable with only a 1µF ceramic capacitor on each output (OUT1 and OUT2) referenced to GND. An optional 0.1–1µF input capacitor near the IN pin improves transient response and noise rejection but is not required for stability. X5R or X7R dielectrics are recommended for minimal ESR and temperature drift.
How does the active pulldown feature work on the TPS71933-28DRVT?
When either EN1 or EN2 is driven low, the corresponding LDO shuts down and its internal active pulldown circuit engages-sinking current from OUT1 or OUT2 to GND. This rapidly discharges the output capacitance without external resistors. For TPS71933-28DRVT, both outputs feature this capability, unlike the TPS718xx series which lacks it.
What is the minimum input voltage required for the TPS71933-28DRVT to regulate both outputs?
The TPS71933-28DRVT requires VIN ≥ 2.7V or (VOUT + VDO), whichever is greater. With 3.3V and 2.8V outputs and 230mV typical dropout, the limiting rail is 3.3V → minimum VIN = 3.3V + 0.23V = 3.53V. However, the absolute minimum specified VIN is 2.7V-so operation below 3.53V results in dropout on OUT1 while OUT2 may still regulate if VIN > 3.03V.
Is the TPS71933-28DRVT RoHS-compliant and lead-free?
Yes, the TPS71933-28DRVT is RoHS-compliant and lead-free. Per TI's Package Option Addendum, it carries NIPDAUAG (nickel-palladium-gold) lead finish, meets JEDEC Level-1 moisture sensitivity, and has peak reflow tolerance up to 260°C. The device is rated for operation from –40°C to +125°C and ships in dry-packed small tape-and-reel (250-piece) format.
TPS71933-28DRVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 6.5V
- Voltage - Output (Min/Fixed):
- 3.3V, 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.4V @ 200mA, 0.4V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 160 µA
- Current - Supply (Max):
- 250 µA
- PSRR:
- 63dB ~ 44dB (100Hz ~ 1MHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (2x2)
TPS71933-28DRVT FAQ
1.How can I place an order for TPS71933-28DRVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS71933-28DRVT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS71933-28DRVT reliable?
The price and inventory of TPS71933-28DRVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS71933-28DRVT is usually 5 days.
3.What payment methods are accepted for TPS71933-28DRVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS71933-28DRVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS71933-28DRVT?
TPS71933-28DRVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS71933-28DRVT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS71933-28DRVT?
For technical support, including TPS71933-28DRVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS71933-28DRVT requirements.
6.How does Aetrix verify that TPS71933-28DRVT is sourced from the original manufacturer or authorized distributors?
All TPS71933-28DRVT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS71933-28DRVT meets industry standards.
7.What is the process for return or replacement of TPS71933-28DRVT?
All TPS71933-28DRVT units undergo pre-shipment inspection (PSI). If there is an issue with TPS71933-28DRVT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS71933-28DRVT part is unused and in its original packaging.
Return procedure for TPS71933-28DRVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS71933-28DRVT Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
