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Diodes Incorporated ZSR1000GTA
- Part No.:
- ZSR1000GTA
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
ZSR1000GTA.pdf
- Description:
- IC REG LINEAR 10V 200MA SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:1,249
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Product details
Overview
ZSR1000GTA from Zetex Semiconductors is a fixed 10.0 V positive linear voltage regulator in SOT223 package, designed for local regulation in space-constrained PCBs. It delivers up to 200 mA output current with ±2.5% initial output voltage tolerance, 350 µA typical quiescent current, and operates across –55°C to +125°C. Used in industrial control modules where distributed supply noise and thermal stress demand robust, component-minimal regulation.
For engineers reviewing the ZSR1000GTA datasheet, ZSR1000GTA pinout, ZSR1000GTA application, or ZSR1000GTA equivalent, this page provides verified electrical parameters, thermal behavior, dropout characteristics, ripple rejection (43–57 dB at 120 Hz), and real-world design implications for high-reliability embedded power rails.
Technical Context
The ZSR1000GTA employs a monolithic bipolar architecture with internal current limiting and thermal shutdown circuitry-no external compensation required. Its dropout voltage remains ≤1.7 V at 200 mA load and 25°C, rising to ≤2.5 V at 125°C, enabling stable operation under wide input variation (12–20 V).
It achieves 9.75–10.25 V output over full load (1–200 mA) and temperature (–55°C to +125°C), with line regulation of 12–40 mV and load regulation of 9–30 mV. Output noise is 150 µVrms (10 Hz–10 Hz), and ripple rejection holds ≥43 dB across its operating input range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10.0 V nominal; maintained 9.75–10.25 V over full load/temperature range-ensures logic-level compatibility for 10 V-tolerant analog or interface ICs. |
| Max Output Current | 200 mA continuous-supports moderate-power microcontrollers, sensors, or op-amp rails without external pass devices. |
| Input Voltage Range | 12–20 V minimum-to-maximum-requires ≥2 V headroom; not suitable for <12 V inputs or battery-backed 9 V systems. |
| Quiescent Current | 350–600 µA typical-enables low-power standby modes while maintaining regulation integrity. |
| Thermal Shutdown Threshold | Activates above safe junction temperature-prevents permanent damage during overload or poor heatsinking. |
| Ripple Rejection | 43–57 dB at 120 Hz-effectively suppresses rectified AC noise from unregulated wall adapters or SMPS post-regulation stages. |
| Dropout Voltage | 1.7 V at 200 mA / 25°C; ≤2.5 V at 125°C-dictates minimum input margin needed to sustain regulation under worst-case thermal conditions. |
Pinout & Package
SOT223 package with exposed thermal pad (pin 4); pins 2 and 3 are internally connected GND terminals; pin 4 may be electrically isolated or tied to pin 2 for enhanced thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (IN) | Input voltage supply | Accepts 12–20 V DC; must include ≥1 µF input capacitor to prevent shutdown-induced transients. |
| Pin 2 (GND) | Ground reference | Main ground return path; connects internally to pin 3 and optionally to pin 4 for thermal conduction. |
| Pin 3 (GND) | Secondary ground terminal | Redundant GND connection-improves layout symmetry and reduces ground loop impedance. |
| Pin 4 (Tab) | Thermal pad / optional GND | Exposed copper pad for PCB thermal relief; electrically isolated unless soldered to GND plane. |
Key Features
| Feature | Design Value |
|---|---|
| No external components required | Internally compensated-eliminates need for external capacitors or resistors, reducing BOM count and board area. |
| Tight initial output tolerance | ±2.5% at 25°C-reduces need for downstream trimming or calibration in precision analog subsystems. |
| Wide operating temperature range | –55°C to +125°C-qualified for under-hood automotive, industrial motor drives, and outdoor telecom equipment. |
| Internal short-circuit protection | Limits output current to safe levels during fault-prevents catastrophic failure without external fusing. |
| Stable with ceramic or tantalum output caps | No ESR requirements-compatible with modern low-ESR MLCCs, simplifying decoupling network design. |
Applications
| Industrial PLC I/O Module | Automotive Body Control Unit |
|---|---|
Use Scenario: Local 10 V rail powers analog sensor signal conditioning and ADC reference in modular I/O cards exposed to vibration and wide ambient swings. IC Role / Device Role / Timing Role: Fixed-output linear regulator providing clean, stable bias for precision op-amps and SAR ADCs. Use Value: Maintains 9.75–10.25 V output across –40°C to +85°C operating range with <30 mV load regulation-preserves measurement accuracy without recalibration. |
Use Scenario: Supplies 10 V to LIN transceiver and window lift motor driver ICs in door module assemblies. IC Role / Device Role / Timing Role: Local post-regulator isolating sensitive communication ICs from noisy 12 V vehicle battery bus. Use Value: Delivers 43–57 dB ripple rejection at 120 Hz-suppresses alternator ripple and load-dump transients that would otherwise corrupt LIN frame timing. |
| Medical Diagnostic Sensor Interface | Test & Measurement Front-End |
Use Scenario: Powers photodiode TIA and programmable gain amplifier in portable blood oximeter with battery+boost architecture. IC Role / Device Role / Timing Role: Low-noise local regulator for analog front-end requiring minimal supply-induced offset drift. Use Value: 150 µVrms output noise and 0.25 mV/°C tempco ensure sub-0.1% gain stability over clinical temperature range (15–40°C). |
Use Scenario: Generates calibrated 10 V reference for multimeter auto-ranging circuitry and DAC buffer stages. IC Role / Device Role / Timing Role: Precision voltage source feeding 16-bit DAC reference input and comparator hysteresis networks. Use Value: ±2.5% initial tolerance and <40 mV line regulation enable traceable 10 V reference without trimming-reducing calibration labor and test time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM78L10ACZ | TO-92 package; 100 mA max output; 5.5 mA quiescent current; no thermal shutdown | Lower power, lower thermal capability; unsuitable for >100 mA or high-temp environments | Select only for cost-sensitive, low-current legacy designs where SOT223 footprint is unavailable. |
| MCP1703T-1002E/MB | SOT23-5; 250 mA output; 4 µA quiescent current; requires 1 µF ceramic output cap | Ultra-low IQ enables battery life extension; smaller footprint but lower PSRR (60 dB @ 120 Hz) | Prefer for portable equipment with tight power budgets; avoid if >60 dB ripple rejection is mandatory. |
Compared with ZSR1000GTA, LM78L10ACZ trades thermal robustness and current capacity for legacy through-hole compatibility, while MCP1703T-1002E/MB prioritizes ultra-low quiescent current over high-PSRR performance-making ZSR1000GTA optimal for thermally demanding, noise-sensitive 200 mA applications.
Availability
ZSR1000GTA is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, medical diagnostic sensor interfaces, and test & measurement front-ends requiring stable component supply with full lifecycle support.
Supply support for ZSR1000GTA 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
Zetex Semiconductors plc (now part of Diodes Incorporated) was a UK-based designer of high-performance analog and discrete semiconductors, ISO 9001 and TS16949 certified, focused on rugged, application-optimized components.
ZSR Series regulators were developed specifically for local point-of-load regulation in harsh environments-emphasizing thermal resilience, intrinsic protection, and minimal external component count over general-purpose use.
FAQ
What is the minimum input voltage required for ZSR1000GTA to maintain regulation?
The ZSR1000GTA requires a minimum input voltage of 11.7 V to sustain 10.0 V output at full 200 mA load and 25°C. This value increases with temperature and load-derating to 12.5 V is recommended for reliable operation across –40°C to +85°C industrial range.
Can ZSR1000GTA be used with ceramic output capacitors?
Yes-ZSR1000GTA is unconditionally stable with ceramic, tantalum, or aluminum electrolytic output capacitors. Unlike many older LDOs, it imposes no minimum ESR requirement, allowing direct use of modern low-ESR MLCCs without series resistance.
Does ZSR1000GTA include reverse-polarity protection?
No-ZSR1000GTA lacks built-in reverse-voltage protection. Applying reverse polarity to the IN pin can cause irreversible damage. A series Schottky diode (e.g., BAT54) is required if system-level reverse-battery risk exists.
How does thermal shutdown behave during sustained overload?
Under sustained overload, ZSR1000GTA cycles into thermal shutdown when junction temperature exceeds ~165°C, then recovers once temperature drops below ~145°C. This hiccup-mode behavior prevents destruction but causes output interruption-external current limiting is advised for continuous fault tolerance.
ZSR1000GTA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 20V
- Voltage - Output (Min/Fixed):
- 10V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 600 µA
- Current - Supply (Max):
- -
- PSRR:
- 57dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Temperature, Short Circuit
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223-3
ZSR1000GTA FAQ
1.How can I place an order for ZSR1000GTA through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSR1000GTA 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 ZSR1000GTA reliable?
The price and inventory of ZSR1000GTA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSR1000GTA is usually 5 days.
3.What payment methods are accepted for ZSR1000GTA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSR1000GTA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSR1000GTA?
ZSR1000GTA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSR1000GTA 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 ZSR1000GTA?
For technical support, including ZSR1000GTA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSR1000GTA requirements.
6.How does Aetrix verify that ZSR1000GTA is sourced from the original manufacturer or authorized distributors?
All ZSR1000GTA 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 ZSR1000GTA meets industry standards.
7.What is the process for return or replacement of ZSR1000GTA?
All ZSR1000GTA units undergo pre-shipment inspection (PSI). If there is an issue with ZSR1000GTA, 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 ZSR1000GTA part is unused and in its original packaging.
Return procedure for ZSR1000GTA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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