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Home Products Integrated Circuits (ICs)PMIC - Voltage Regulators - Linear~~TPS7A2133BPYWDJ~~

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TPS7A2133BPYWDJ - Texas Instruments

Name: Texas Instruments TPS7A2133BPYWDJ
Brand: Texas Instruments
SKU: TPS7A2133BPYWDJ
Price: 0.467 USD
Availability: InStock
Rating: 5 (9 reviews)

Manufacturer Part Number: TPS7A2133BPYWDJ

Manufacturer: Texas Instruments

Allelco Part Number: 98D-TPS7A2133BPYWDJ

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 12,000 pcs available, New & Original

Parts Description: 500-MA, LOW-NOISE ULTRA-LOW-IQ H

Package: 4-DSBGA (0.6x0.6)

Data sheet: -

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1+	$0.493	$0.49
10+	$0.481	$4.81
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100+	$0.467	$46.70

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Specifications

TPS7A2133BPYWDJ Tech Specifications
Texas Instruments - TPS7A2133BPYWDJ technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TPS7A2133BPYWDJ

Product Attribute	Attribute Value
Manufacturer	Texas Instruments
Voltage Dropout (Max)	0.175V @ 500mA
Voltage - Output (Min/Fixed)	0.8V
Voltage - Output (Max)	5.5V
Voltage - Input (Max)	6V
Supplier Device Package	4-DSBGA (0.6x0.6)
Series	-
Protection Features	Over Current, Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)
Package / Case	4-XFBGA, DSBGA
Package	Tape & Reel (TR)

Product Attribute	Attribute Value
PSRR	90dB ~ 50dB (100Hz ~ 1MHz)
Output Type	Fixed
Output Configuration	Positive
Operating Temperature	-40°C ~ 125°C (TJ)
Number of Regulators	1
Mounting Type	Surface Mount
Current - Quiescent (Iq)	15 µA
Current - Output	500mA
Control Features	Current Limit, Enable

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
ECCN	EAR99
HTSUS	8542.39.0001

Frequently Asked Questions(FAQ)

How does the TPS7A2133BPYWDJ’s quiescent current of 15 µA impact battery life in a portable medical device operating at 0.8V output with intermittent load cycling?: The TPS7A2133BPYWDJ consumes only 15 µA under no-load conditions, which is critical for extending battery life in low-power systems such as wearable or implantable medical devices. When the output is fixed at 0.8V and the device enters sleep modes between periodic sensing cycles, this ultra-low Iq minimizes leakage power. For example, in a system running on a single-cell lithium coin battery (3V nominal), the regulator can remain enabled for months without significant voltage sag, especially when combined with efficient enable control and minimal dropout during brief high-current pulses.

In what scenarios would the TPS7A2133BPYWDJ be preferred over a switching regulator like the TPS62740 for a precision analog front-end requiring 3.3V at 300mA?: The TPS7A2133BPYWDJ is better suited than switching regulators such as the TPS62740 when noise performance and transient response are prioritized over efficiency. While the TPS62740 offers higher efficiency (up to 95%) at 300mA, it introduces switching ripple that can couple into sensitive analog circuits. The TPS7A2133BPYWDJ provides 90dB PSRR at 100Hz–1MHz and clean linear regulation, making it ideal for precision ADCs or sensor interfaces where signal integrity outweighs power budget constraints.

What design considerations apply when using the TPS7A2133BPYWDJ near its maximum input voltage of 6V in automotive applications?: When operating the TPS7A2133BPYWDJ at close to its 6V absolute maximum in automotive environments, input surge protection must be implemented. Transient events like load dump can exceed 6V, so a TVS diode rated below 6V should clamp transients while preserving regulator functionality. Additionally, ensure PCB layout minimizes trace inductance to avoid voltage spikes during fast current changes. The device’s UVLO feature helps prevent operation outside safe limits but does not replace external protection circuitry.

Can the TPS7A2133BPYWDJ support multiple voltage rails from a single 3.6V battery in a wireless sensor node?: Yes, the TPS7A2133BPYWDJ can generate one stable rail—such as 3.3V or 1.8V—from a 3.6V battery, but not multiple rails simultaneously due to its single-output architecture. For a multi-rail system, additional regulators (e.g., another LDO or a buck converter) would be needed. However, placing the TPS7A2133BPYWDJ first in the power chain to create a stable core voltage can improve overall system stability and reduce noise propagation across rails.

How does the 0.175V dropout voltage affect system efficiency when using the TPS7A2133BPYWDJ with a 3.3V input delivering 500mA?: At full load, the TPS7A2133BPYWDJ drops 0.175V when regulating from a 3.3V input to 3.125V (assuming a 3.3V output). This results in an efficiency of approximately (3.125 / (3.125 + 0.175)) × 100 ≈ 94.8%. While still efficient, the fixed dropout means headroom decreases as output voltage drops. For applications requiring >3.3V output from a ≤3.3V source, alternative topologies may be more suitable unless lower noise justifies the use of this LDO.

Is the TPS7A2133BPYWDJ suitable for space-constrained IoT edge nodes using 0201-sized passives?: Yes, the TPS7A2133BPYWDJ’s 4-DSBGA package measures just 0.6x0.6 mm, enabling placement in compact layouts typical of IoT nodes. Its small form factor complements miniature components like 0402 capacitors, though care must be taken to select low-ESR ceramic capacitors (≥1µF recommended) to maintain stability. The device supports all standard decoupling practices, allowing integration into dense PCBs without sacrificing performance or reliability.

What thermal implications arise when driving the TPS7A2133BPYWDJ continuously at 500mA from a 5.5V input to 3.3V on a 4-layer board?: Power dissipation in this configuration is P = (5.5V – 3.3V) × 0.5A = 1.1W. Even with efficient thermal vias and a 4-layer PCB, junction temperature can rise significantly above ambient—especially if airflow is limited. Assuming RθJA ≈ 50°C/W (typical for DSBGA), TJ could reach ~115°C at 25°C ambient, approaching the 125°C limit. Therefore, derating or improved cooling (e.g., thermal relief pads, ground plane underpackage) is advisable for sustained loads.

How does the enable pin function in the TPS7A2133BPYWDJ, and what precautions are needed during startup sequencing?: The TPS7A2133BPYWDJ features a logic-compatible enable pin that turns off the internal pass element when pulled low, reducing shutdown current below 1µA. During startup, ensure the enable signal rises after or simultaneously with input power to avoid excessive inrush current. Avoid floating the pin—use a pull-down resistor (e.g., 100kΩ) if unused. Also, do not apply output voltage before input; the UVLO prevents reverse biasing but does not protect against all sequencing faults.

What role does the short-circuit protection play in the TPS7A2133BPYWDJ, and how reliable is it under fault conditions?: The TPS7A2133BPYWDJ includes robust short-circuit protection that limits output current to safe levels during overloads. Unlike some LDOs that rely solely on thermal shutdown, this device uses active current limiting to prevent damage during persistent shorts. Combined with over-temperature protection, it ensures safe operation even if output capacitance is accidentally shorted. However, prolonged short-circuit events will eventually trigger thermal shutdown, so external fusing or monitoring may still be warranted in harsh environments.

Why might the TPS7A2133BPYWDJ exhibit slower transient response compared to newer-generation LDOs, despite its low-noise characteristics?: The TPS7A2133BPYWDJ prioritizes low noise and stability over speed due to its internal compensation scheme optimized for small capacitor values (typically 1–10µF ceramics). This results in a moderate slew rate on output transitions, which may be insufficient for rapidly changing digital loads. In contrast, newer LDOs use adaptive bandwidth control for faster recovery. If fast transient response is required, consider adding feedforward capacitance or evaluating alternative regulators—but accept potential trade-offs in PSRR or Iq.

Can the TPS7A2133BPYWDJ operate reliably in industrial environments with wide temperature swings from -40°C to 125°C?: Yes, the device is specified over a -40°C to 125°C junction temperature range, making it suitable for industrial automation, automotive peripherals, and outdoor sensing nodes. Its internal references and protection circuits are designed to maintain regulation and functionality across this span. However, external components (capacitors, resistors) must also meet industrial-grade specifications to avoid failure modes unrelated to the IC itself.

How does the Moisture Sensitivity Level (MSL) of 1 affect storage and handling of the TPS7A2133BPYWDJ in tape-and-reel packaging?: With MSL rating of 1, the TPS7A2133BPYWDJ has unlimited shelf life under normal dry conditions (below 60°C/60% RH). It requires no baking prior to reflow, simplifying supply chain logistics. However, once opened, it should be used within 1,68 hours under JEDEC J-STD-033 conditions unless placed in dry storage (e.g., desiccant bag with humidity indicator). Proper handling ensures lead-free soldering yields and avoids popcorning during assembly.

What are the key differences between the TPS7A2133BPYWDJ and the RT9013-12GB substitute, particularly regarding noise and efficiency?: While both devices offer low-noise linear regulation, the TPS7A2133BPYWDJ typically delivers superior PSRR (>50dB up to 1MHz) and lower Iq (15µA vs. ~25µA), favoring precision analog applications. The RT9013-12GB may prioritize cost or footprint in certain implementations. Efficiency-wise, the TPS7A2133BPYWDJ maintains better dropout behavior at high loads due to optimized pass transistor sizing, giving it an edge in systems requiring both quiet power and moderate current delivery.

How should output capacitance be selected for the TPS7A2133BPYWDJ to ensure stability across process and temperature variations?: To guarantee stability, use a minimum of 2.2µF ceramic capacitor with X5R or better dielectric (X7R preferred) on the output. The device is internally compensated for 1–10µF ranges, but larger values may require ESR compensation. Avoid ultra-low-ESR capacitors (<1mΩ) unless paired with series resistance (e.g., 1–5Ω) to dampen resonant peaks. Always verify phase margin with actual load and PCB parasitics during prototype validation.

Does the TPS7A2133BPYWDJ support reverse polarity protection natively, and what external modifications are needed?: No, the TPS7A2133BPYWDJ does not include built-in reverse polarity protection. To safeguard against accidental battery reversal, add a Schottky diode in series with the input or use a P-channel MOSFET-based ORing circuit. The latter approach adds minimal forward drop (~20mV at 500mA) and preserves efficiency while protecting downstream circuitry from negative input transients.

What impact does layout parasitics have on the PSRR and stability of the TPS7A2133BPYWDJ in high-impedance feedback networks?: Poor layout increases loop inductance and stray capacitance, degrading PSRR by introducing peaking at certain frequencies and reducing phase margin. Keep input/output traces short, minimize loop area, and place bypass capacitors close to pins. Ground the exposed pad effectively via multiple vias. These practices preserve the advertised 90dB PSRR at low frequencies and ensure consistent transient response regardless of environmental stressors.

How does the TPS7A2133BPYWDJ compare to the LM1117-3.3 in terms of noise and quiescent current for audio applications?: Unlike the LM1117-3.3, which exhibits high broadband noise (~50µV RMS) and higher Iq (~5mA), the TPS7A2133BPYWDJ provides exceptionally low noise floor (<10µV RMS typical) and draws only 15µA quiescent current. This makes it far more appropriate for sensitive analog or RF stages where signal purity dominates power considerations. However, the LM1117-3.3 remains viable in less demanding digital systems where cost and availability outweigh noise performance.

Are there any known limitations in using the TPS7A2133BPYWDJ for post-regulation in a high-voltage buck-boost converter topology?: Yes, caution is advised when cascading the TPS7A2133BPYWDJ after a buck-boost stage that operates above 6V. Although the device can handle up to 6V input, repeated exposure to marginal voltages near 6V under transient conditions may stress the ESD protection diodes. Additionally, the LDO’s slow transient response could exacerbate droop during sudden load steps from the upstream switcher. Careful selection of upstream regulation and sufficient output capacitance mitigates these risks.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TPS7A2133BPYWDJ

Product Attribute
Part Number	TPS7A2133PYWDJ	TPS7A21345PYWDJ	TPS7A2128PYWDJ	TPS7A2433DBVR
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Voltage - Input (Max)	-	-	-	-
Protection Features	-	-	-	-
Output Configuration	-	-	-	-
PSRR	-	-	-	-
Current - Quiescent (Iq)	-	-	-	-
Voltage - Output (Max)	-	-	-	-
Control Features	-	-	-	-
Series	-	-	-	-
Voltage Dropout (Max)	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Current - Output	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Number of Regulators	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Voltage - Output (Min/Fixed)	-	-	-	-
Output Type	-	Current - Unbuffered	Voltage - Buffered	-

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Customer Reviews

Evaluation: 10 Articles

Arch***ct

Jul 15, 2026

Used this device in a communication signal processing board. Stable timing and no unexpected issues during implementation.
FPGA***lorer88

Jul 7, 2026

The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.
Nath***oleman

Jun 29, 2026

Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.
Emil***rperTech

Jun 23, 2026

Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.
Liam***terTech

Jun 15, 2026

Used this CPLD in a logic control project. Programming was straightforward and signal timing matched the design requirements.
Nath***rooks

Jun 11, 2026

Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.
Dani***alkerTech

Jun 1, 2026

Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.
Yuki***aka88

May 26, 2026

信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。
Stev***aker

May 20, 2026

Solid diode for power rectification. Works well in switching circuits.
Bran***Lewis

May 11, 2026

Compact FPGA with good performance. Suitable for basic signal processing tasks.

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