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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear Regulator Controllers

Texas Instruments 5962-9326502M2A

Name: 5962-9326502M2A
Brand: Texas Instruments
SKU: 5962-9326502M2A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 5962-9326502M2A

Manufacturer:: Texas Instruments

Category:: Voltage Regulators - Linear Regulator Controllers

Package:: -

Datasheet:: 5962-9326502M2A.pdf

Description:: ANALOG CIRCUIT, 1 FUNC, CQCC20

Quantity:: RFQ Add To RFQ list

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Product details

Overview

5962-9326502M2A from Texas Instruments is a precision linear controller IC designed for low-dropout, high-reliability linear regulator systems using external NPN or PNP pass transistors. It features a 2.00 V ±1% reference, programmable duty-ratio over-current protection with 5% threshold accuracy, 4.5V to 36V input operation, 100mA source/sink driver output, and under-voltage lockout at 4.5V. It is used in military-grade power supplies requiring stable current limiting during short-circuit faults.

For engineers reviewing the 5962-9326502M2A datasheet, 5962-9326502M2A pinout, 5962-9326502M2A application, or 5962-9326502M2A equivalent, key selection considerations include its −55°C to +125°C military temperature range, 14-pin ceramic DIP (J package), duty-ratio timer control via external RC, adjustable current limit via VADJ, and logic-level disable functionality - all critical for ruggedized analog power management design.

Technical Context

The 5962-9326502M2A implements a gated-astable timer-based duty-ratio current limiting architecture that switches the external pass device on/off at a user-programmable frequency and duty cycle. During on-time, output current is limited to ~1.35×–3.05× the trip threshold, enabling high peak load capability while constraining average power dissipation in fault conditions.

It integrates a precision 2.00 V reference (±1%), error amplifier with 70 dB open-loop gain and 80 dB CMRR, UVLO with 4.5 V threshold, and a dual-mode driver capable of sourcing or sinking up to 400 mA. The IC supports both constant-voltage/constant-current regulation (when timer pin grounded) and dynamic duty-ratio limiting (when timer enabled).

Key Specifications

Parameter	Value and Actual Design Meaning
Reference Voltage	2.00 V ±1% - provides stable feedback reference for precise output regulation across −55°C to +125°C.
Input Voltage Range	4.5 V to 36 V - supports wide-input industrial/military power rails without external pre-regulation.
Driver Output Capability	100 mA continuous, 400 mA peak sink/source - drives medium-power NPN/PNP pass transistors directly.
Over-Current Threshold Accuracy	±5% - ensures repeatable short-circuit response across temperature and unit variation.
Duty Ratio Control	Programmable via RT/CT - enables adjustable fault recovery timing (e.g., 4.8% duty, 36 ms period with 200 kΩ/0.27 µF).
UVLO Threshold	4.5 V (typ) - prevents erratic startup or operation below minimum functional supply voltage.
Logic Disable Threshold	1.4 V (typ) - allows clean, low-power shutdown using standard TTL/CMOS logic levels.

Pinout & Package

5962-9326502M2A is housed in a 14-pin ceramic dual-in-line package (CERDIP, J suffix), rated for −55°C to +125°C operation and compliant with MIL-PRF-38535 Class M.

Pin/Terminal	Circuit Role	Design Meaning
1	No Connect	Unused internal node; must be left floating or tied to ground per layout best practice.
2	+VIN	Main power input; supplies internal circuitry and driver stage; accepts 4.5–36 V.
3	Comp/Shutdown	Error amplifier output and active-low shutdown input; pulls low to disable regulation.
4	E/A(+)	Inverting input of error amplifier; connected to feedback divider for output voltage sensing.
5	+2V REF	Precision 2.00 V reference output; used as feedback reference or bias source.
6	No Connect	Unused internal node; no connection required.
7	Gnd	Analog and power ground reference; requires low-impedance connection to system ground plane.
8	Logic Disable	Active-high digital disable input; ≥1.4 V disables driver and reference; <1.3 V enables operation.
9	Limit	Adjusts current sense gain via external resistor; sets over-current trip threshold.
10	Source	Driver source output; connects to base/emitter of NPN pass transistor or PNP emitter.
11	No Connect	Unused internal node; leave unconnected.
12	E/A(−)	Non-inverting input of error amplifier; typically tied to +2V REF for fixed-output configurations.
13	Sink	Driver sink output; connects to base of PNP pass transistor or NPN collector.
14	VADJ	Adjusts current sense amplifier offset; varies IMAX multiplier from 1.35× to 3.05× trip threshold.

Key Features

Feature	Design Value
Duty-ratio over-current protection	Enables high peak current delivery during startup while limiting average power in sustained faults - eliminates need for foldback or extra heatsinking.
Programmable current limit via VADJ	Allows fine-tuning of peak-to-trip current ratio (1.35×–3.05×) to match specific pass transistor SOA and thermal constraints.
Separate +VIN terminal	Isolates driver supply from control circuitry, improving noise immunity and enabling bootstrap or floating driver configurations.
Access to VREF and E/A(+) pins	Permits flexible feedback topologies including adjustable outputs, tracking regulators, and precision current sources.
Logic-level disable input	Supports direct interface with microcontrollers or FPGA GPIO without level-shifting, reducing BOM count and board space.

Applications

Aerospace Power Distribution	Military Vehicle DC-DC Conversion
Use Scenario: Regulating 5 V or 12 V rails in avionics subsystems subject to wide input transients and EMI. IC Role / Device Role / Timing Role: Precision linear controller managing external PNP pass transistor to maintain tight output regulation during engine cranking (4.5 V min) and load dump (36 V max). Use Value: UVLO prevents brownout-induced latch-up; duty-ratio limiting protects pass transistor during cable short events without thermal runaway.	Use Scenario: Local 3.3 V or 5 V regulation for mission-critical C4I electronics in tracked vehicles with harsh thermal cycling. IC Role / Device Role / Timing Role: Low-dropout linear controller driving NPN pass device; uses VADJ to adapt current limit for varying ambient temperatures. Use Value: −55°C to +125°C guaranteed operation enables deployment in uncooled chassis; 2.00 V ±1% reference ensures ADC/DAC reference stability across full range.
Tactical Radio Transceiver Bias	Secure Data Link Power Management
Use Scenario: Providing clean, low-noise bias for RF power amplifiers and mixer stages in manpack radios. IC Role / Device Role / Timing Role: Linear controller operating in constant-voltage/constant-current mode (timer pin grounded) to deliver stable bias with fast transient response. Use Value: 100 mA driver output supports direct drive of medium-power RF transistors; low 10 mA quiescent current extends battery life.	Use Scenario: Powering encryption modules and high-speed serial interfaces in encrypted SATCOM terminals. IC Role / Device Role / Timing Role: Dual-role controller: regulates main 3.3 V rail and monitors current via sense inputs to trigger graceful shutdown on intrusion detection. Use Value: Access to E/A(+) and current sense pins enables real-time load monitoring; logic disable allows coordinated power sequencing with FPGA.

Aerospace Power Distribution

Military Vehicle DC-DC Conversion

Use Scenario: Regulating 5 V or 12 V rails in avionics subsystems subject to wide input transients and EMI.

IC Role / Device Role / Timing Role: Precision linear controller managing external PNP pass transistor to maintain tight output regulation during engine cranking (4.5 V min) and load dump (36 V max).

Use Value: UVLO prevents brownout-induced latch-up; duty-ratio limiting protects pass transistor during cable short events without thermal runaway.

Use Scenario: Local 3.3 V or 5 V regulation for mission-critical C4I electronics in tracked vehicles with harsh thermal cycling.

IC Role / Device Role / Timing Role: Low-dropout linear controller driving NPN pass device; uses VADJ to adapt current limit for varying ambient temperatures.

Use Value: −55°C to +125°C guaranteed operation enables deployment in uncooled chassis; 2.00 V ±1% reference ensures ADC/DAC reference stability across full range.

Tactical Radio Transceiver Bias

Secure Data Link Power Management

Use Scenario: Providing clean, low-noise bias for RF power amplifiers and mixer stages in manpack radios.

IC Role / Device Role / Timing Role: Linear controller operating in constant-voltage/constant-current mode (timer pin grounded) to deliver stable bias with fast transient response.

Use Value: 100 mA driver output supports direct drive of medium-power RF transistors; low 10 mA quiescent current extends battery life.

Use Scenario: Powering encryption modules and high-speed serial interfaces in encrypted SATCOM terminals.

IC Role / Device Role / Timing Role: Dual-role controller: regulates main 3.3 V rail and monitors current via sense inputs to trigger graceful shutdown on intrusion detection.

Use Value: Access to E/A(+) and current sense pins enables real-time load monitoring; logic disable allows coordinated power sequencing with FPGA.

Equivalent & Alternatives

The following parts are listed as comparable options for similar linear controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
UC1832J	Same die, identical electrical specs, but commercial-grade screening (no MIL-PRF-38535 qualification).	Lacks radiation tolerance, burn-in, and extended temperature validation; unsuitable for flight hardware.	Select only for lab prototyping or non-mission-critical ground support equipment.
5962-9753701M2A	Enhanced version with improved thermal shutdown (160°C vs 150°C) and tighter reference drift (±0.5% vs ±1%).	Offers higher reliability margin in sustained high-temperature environments; requires updated qualification testing.	Preferred for new designs where long-term stability under thermal stress is prioritized over legacy compatibility.

Compared with UC1832J, 5962-9326502M2A delivers assured military reliability via QML Class M processing and extended temperature validation; compared with 5962-9753701M2A, it trades minor reference drift tolerance for proven field history and lower cost in legacy platforms.

Availability

5962-9326502M2A is available at Aetrix Electronics and suitable for aerospace power distribution, military vehicle DC-DC conversion, tactical radio transceiver bias, and secure data link power management requiring stable component supply across extended temperature and radiation-hardened environments.

Supply support for 5962-9326502M2A 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 power management solutions, with deep heritage in military and aerospace IC design.

The UC1832/UC1833 product line was developed specifically for precision linear regulation in high-reliability systems, emphasizing fault-tolerant current limiting, wide-input operation, and extended temperature performance - directly addressing requirements of MIL-STD-704 and DO-160 power environments.

FAQ

What is the operating temperature range specified for the 5962-9326502M2A?

The 5962-9326502M2A is specified for operation from −55°C to +125°C, meeting MIL-PRF-38535 Class M requirements. This range is validated through temperature cycling, steady-state burn-in, and parametric testing across extremes - ensuring reliable function in jet engine bays, desert-deployed vehicles, and space-qualified enclosures. The 5962-9326502M2A maintains 2.00 V ±1% reference accuracy and 5% over-current threshold tolerance throughout this range.

How does the duty-ratio current limiting work in the 5962-9326502M2A?

The 5962-9326502M2A uses an external RC network on the Timer RC pin to configure a gated-astable oscillator. When load current exceeds the programmed threshold, the timer activates and forces the driver into periodic on/off cycles. During on-time, current is limited to a value slightly above the trip point (1.35×–3.05×, set by VADJ); off-time allows pass transistor cooling. This avoids thermal runaway seen in foldback-limited designs. The 5962-9326502M2A's architecture ensures predictable fault behavior without external timers or comparators.

Can the 5962-9326502M2A drive both NPN and PNP pass transistors?

Yes, the 5962-9326502M2A supports both topologies via its dual-mode driver: the Source pin drives the base of an NPN transistor (common-emitter) or emitter of a PNP transistor (common-base), while the Sink pin drives the base of a PNP transistor (common-emitter) or collector of an NPN transistor. Its ability to source or sink up to 400 mA enables direct interfacing without external buffers. Application diagrams in the 5962-9326502M2A datasheet confirm NPN local regulator and PNP low-dropout configurations.

What is the purpose of the VADJ pin on the 5962-9326502M2A?

The VADJ pin on the 5962-9326502M2A adjusts the current sense amplifier offset voltage, which directly scales the peak current delivered during the on-time of duty-ratio limiting. At VADJ = 0 V, IMAX ≈ 3.05× trip threshold; at VADJ = 1 V, IMAX ≈ 2.35×; at VADJ = open, IMAX ≈ 1.35×. This allows designers to optimize peak current for specific pass transistor safe operating area (SOA) and thermal mass - a feature not present in the UC1833 family. The 5962-9326502M2A's VADJ enables one IC to serve multiple output power classes.

Is the 5962-9326502M2A pin-compatible with other UC1832 variants?

Yes, the 5962-9326502M2A shares the same 14-pin DIL footprint and pinout as all UC1832J/UC1832N variants, including UC1832J, UC1832N, and 5962-9753701M2A. All use identical PACKAGE PIN FUNCTION mapping: Pin 2 = +VIN, Pin 3 = Comp/Shutdown, Pin 5 = +2V REF, Pin 7 = Gnd, Pin 8 = Logic Disable, Pin 10 = Source, Pin 12 = E/A(−), Pin 13 = Sink, Pin 14 = VADJ. This allows drop-in replacement in existing military PCB layouts qualified to MIL-PRF-38535.

5962-9326502M2A Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: *

Package/Case:: -

Packaging:: Bulk

Product Status:: Active

Type:: -

Number of Outputs:: -

Current - Supply:: -

Voltage - Input:: -

Operating Temperature:: -

Mounting Type:: -

Supplier Device Package:: -

5962-9326502M2A FAQ

1.How can I place an order for 5962-9326502M2A through Aetrix?

Please submit a Request for Quotation (RFQ) for 5962-9326502M2A 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 5962-9326502M2A reliable?

The price and inventory of 5962-9326502M2A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-9326502M2A is usually 5 days.

3.What payment methods are accepted for 5962-9326502M2A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5962-9326502M2A transactions.

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4.How is shipping managed for 5962-9326502M2A?

5962-9326502M2A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 5962-9326502M2A 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 5962-9326502M2A?

For technical support, including 5962-9326502M2A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-9326502M2A requirements.

6.How does Aetrix verify that 5962-9326502M2A is sourced from the original manufacturer or authorized distributors?

All 5962-9326502M2A 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 5962-9326502M2A meets industry standards.

7.What is the process for return or replacement of 5962-9326502M2A?

All 5962-9326502M2A units undergo pre-shipment inspection (PSI). If there is an issue with 5962-9326502M2A, 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 5962-9326502M2A part is unused and in its original packaging.

Return procedure for 5962-9326502M2A:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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