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Diodes Incorporated ZSR1000GTC
- Part No.:
- ZSR1000GTC
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
ZSR1000GTC.pdf
- Description:
- IC REG LINEAR 10V 200MA SOT223
- Quantity:
- Payment:
- Shipping:
Inventory:2,738
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Product details
Overview
ZSR1000GTC from Zetex Semiconductors is a fixed positive 10.0 V 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. It is used in industrial control modules where stable low-noise local supply is required near microcontrollers or analog sensors.
For engineers reviewing the ZSR1000GTC datasheet, ZSR1000GTC pinout, ZSR1000GTC application, or ZSR1000GTC equivalent, this page provides verified electrical parameters, thermal behavior, dropout characteristics, ripple rejection (43–57 dB at 120 Hz), and real-world design guidance for high-reliability embedded power rails.
Technical Context
The ZSR1000GTC employs a monolithic bipolar architecture with internal current limiting and thermal shutdown circuitry, eliminating external protection components. Its dropout voltage remains ≤1.7 V at 200 mA load and 25°C, enabling operation from 12 V input while maintaining regulation down to 11.7 V minimum input.
It achieves 10.0 V output stability over full temperature range (–55°C to +125°C) with average temperature coefficient of 0.25 mV/°C and load regulation of 9–30 mV across 1–200 mA. Ripple rejection is specified at 43–57 dB (120 Hz, Vin=13–18 V), supporting noise-sensitive analog subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 9.75–10.25 V (±2.5% initial tolerance at 25°C; 9.6–10.4 V over full load/temperature) |
| Max Output Current | 200 mA (continuous; derated above 25°C ambient per 2 W SOT223 power limit) |
| Quiescent Current | 350–600 µA (enables ultra-low standby power in battery-backed systems) |
| Input Voltage Range | 12–20 V (minimum 11.7 V required to maintain regulation at full load) |
| Ripple Rejection | 43–57 dB at 120 Hz (ensures clean supply for ADC references or op-amp biasing) |
| Operating Temp | –55°C to +125°C (supports extended industrial and automotive under-hood environments) |
| Dropout Voltage | ≤1.7 V at 200 mA (allows use with 12 V nominal rail even under worst-case input sag) |
Pinout & Package
SOT223 package with exposed thermal pad (pin 4); pin 4 must be connected to pin 2 (GND) or left electrically isolated per datasheet top-view diagram. High-power surface-mount construction enables 2 W dissipation on 2-inch² PCB copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input voltage terminal | Accepts 12–20 V DC; requires ≥1 µF input capacitor to prevent overshoot during thermal shutdown recovery |
| 2 (GND) | Ground reference | Common return for input, output, and internal circuitry; connects to thermal pad (pin 4) for optimal heat transfer |
| 3 (OUT) | Regulated output | Delivers stable 10.0 V; requires ≥10 µF output capacitor for stability and transient response |
| 4 (Thermal Pad) | Thermal interface | Exposed copper pad for PCB thermal conduction; must be soldered to large copper pour or connected to pin 2 for rated power handling |
Key Features
| Feature | Design Value |
|---|---|
| No external components required | Fully internally compensated - stable with only input/output capacitors; eliminates BOM cost and layout risk |
| Internal thermal shutdown | Activates at junction temperature >150°C; self-resets after cooling - prevents permanent damage during overload or poor heatsinking |
| Short-circuit current limit | Peak output current limited to ~400 mA (typical at 25°C); protects IC and upstream supply during fault conditions |
| Tight initial voltage tolerance | ±2.5% at 25°C ensures accurate 10.0 V rail without post-production trimming or feedback adjustment |
| Low-output noise | 150 µVrms (10 Hz–10 Hz bandwidth) supports precision analog circuits without additional LDO filtering |
Applications
| Industrial PLC I/O Module | Automotive Body Control Unit |
|---|---|
Use Scenario: Local 10 V supply for isolated analog input conditioning circuitry in modular PLC backplanes. IC Role / Device Role / Timing Role: Fixed-voltage local regulator providing clean, thermally robust power to 16-bit ADC drivers and signal amplifiers. Use Value: Maintains <±0.5% output variation across –40°C to +85°C operating range and rejects 120 Hz alternator ripple by ≥43 dB. |
Use Scenario: Dedicated 10 V rail for LIN transceiver bias and microcontroller peripheral voltage scaling in door module ECUs. IC Role / Device Role / Timing Role: Low-quiescent-current (350 µA typ.) regulator enabling always-on functionality with minimal battery drain. Use Value: Withstands –40°C cold cranking and +105°C under-dash ambient while delivering 200 mA peak current during window motor activation. |
| Medical Patient Monitor Sensor Interface | Test & Measurement Signal Source |
Use Scenario: Local regulation for high-precision temperature and pressure sensor front-ends in portable patient monitors. IC Role / Device Role / Timing Role: Ultra-low-noise (150 µVrms) 10 V source powering instrumentation amplifiers and reference buffers. Use Value: Temperature coefficient of 0.25 mV/°C ensures <±2.5 mV drift over clinical operating range (10–40°C), preserving measurement accuracy. |
Use Scenario: Stable 10 V reference rail for programmable current sources and calibrated DAC output stages in benchtop calibrators. IC Role / Device Role / Timing Role: Precision local regulator with tight line/load regulation (12 mV max line, 9 mV max load) minimizing calibration drift. Use Value: Load regulation of ≤9 mV over 1–200 mA enables consistent current-source compliance across full output range without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed positive linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM78L10ACZ/NOPB | TO-92 package; higher quiescent current (5.5 mA typ.); ±4% output tolerance; no thermal shutdown | Limited to low-power, non-critical applications; unsuitable for high-temp or fault-prone environments | Select only if TO-92 through-hole mounting is mandatory and thermal robustness is not required. |
| MCP1703T-1002E/MB | SOT-23 package; 250 mA rating; 2 µA quiescent current; ±2% tolerance; requires 1 µF ceramic output cap | Better for ultra-low-power always-on systems but lower PSRR (60 dB @ 120 Hz) and narrower input range (2.3–16 V) | Prefer for battery-powered devices needing sub-µA sleep current; avoid where 12–20 V input or high ripple rejection is critical. |
Compared with LM78L10ACZ/NOPB, ZSR1000GTC offers superior thermal protection and tighter tolerance in surface-mount form; versus MCP1703T-1002E/MB, it trades ultra-low IQ for higher input voltage capability and stronger ripple suppression-making it optimal for industrial 12 V rail regulation.
Availability
ZSR1000GTC is available at Aetrix Electronics and suitable for industrial control systems, automotive body electronics, medical sensor interfaces, and test equipment requiring stable component supply with long-term lifecycle assurance.
Supply support for ZSR1000GTC 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 was a UK-based ISO 9001 and TS16949 certified manufacturer specializing in high-reliability analog and power semiconductor solutions before its acquisition by Diodes Incorporated in 2008.
The ZSR Series was developed for rugged local voltage regulation in space-constrained industrial and automotive applications, emphasizing thermal resilience, no-external-component simplicity, and wide-temperature performance without trimming.
FAQ
What is the minimum input voltage required for ZSR1000GTC to maintain regulation at full 200 mA load?
The minimum input voltage is 11.7 V at 25°C, as specified in the "Vin Input voltage required to maintain regulation" parameter. This value increases with temperature due to thermal derating of power dissipation; at 125°C ambient, the effective minimum rises to approximately 13.5 V to stay within the SOT223's 2 W thermal limit.
Can ZSR1000GTC be used without an input capacitor?
No - an input capacitor of ≥1 µF (preferably ceramic or tantalum) is mandatory. The datasheet explicitly warns that inductive input sources may generate damaging transients during thermal shutdown events; the capacitor clamps these spikes and ensures the 20 V absolute maximum input rating is never exceeded.
Is pin 4 (thermal pad) electrically connected internally in the SOT223 package?
No - pin 4 is an exposed thermal pad with no internal electrical connection. The datasheet states it may be connected to pin 2 (GND) for enhanced thermal performance or left electrically isolated; either configuration is valid, but thermal pad soldering to PCB ground plane is strongly recommended for reliable 200 mA operation.
How does ZSR1000GTC behave under short-circuit conditions?
Under short-circuit, the device activates its internal current limit (~400 mA peak at 25°C) and thermal shutdown (junction >150°C). It cycles on/off autonomously until the fault is removed. During shutdown, input-to-output capacitance can cause voltage overshoot unless a ≥1 µF input capacitor is present - a design requirement explicitly called out in the datasheet.
ZSR1000GTC 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
ZSR1000GTC FAQ
1.How can I place an order for ZSR1000GTC through Aetrix?
Please submit a Request for Quotation (RFQ) for ZSR1000GTC 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 ZSR1000GTC reliable?
The price and inventory of ZSR1000GTC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZSR1000GTC is usually 5 days.
3.What payment methods are accepted for ZSR1000GTC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZSR1000GTC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZSR1000GTC?
ZSR1000GTC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZSR1000GTC 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 ZSR1000GTC?
For technical support, including ZSR1000GTC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZSR1000GTC requirements.
6.How does Aetrix verify that ZSR1000GTC is sourced from the original manufacturer or authorized distributors?
All ZSR1000GTC 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 ZSR1000GTC meets industry standards.
7.What is the process for return or replacement of ZSR1000GTC?
All ZSR1000GTC units undergo pre-shipment inspection (PSI). If there is an issue with ZSR1000GTC, 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 ZSR1000GTC part is unused and in its original packaging.
Return procedure for ZSR1000GTC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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