My Inquiry
My Account
Diodes Incorporated ZXTR1005K4-13
- Part No.:
- ZXTR1005K4-13
- Manufacturer:
- Diodes Incorporated
- Package:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Datasheet:
-
ZXTR1005K4-13.pdf
- Description:
- IC REG LINEAR 5V 50MA TO252-4L
- Quantity:
- Payment:
- Shipping:
Inventory:14,316
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ZXTR1005K4-13 from Diodes Incorporated is a high-voltage series linear regulator in TO252-4 package, delivering a fixed 5V ±2% output with 50mA continuous current capability across 10–100V input range. It integrates an enable pin for toggle control and targets PoE-powered network infrastructure where standard LDOs fail due to excessive input voltage.
For engineers reviewing the ZXTR1005K4-13 datasheet, ZXTR1005K4-13 pinout, ZXTR1005K4-13 application, or ZXTR1005K4-13 equivalent, key selection criteria include input voltage headroom (up to 100V), thermal derating on 15mm×15mm copper, EN logic compatibility (open = enabled, GND = disabled), and ±4% output tolerance over –55°C to +125°C.
Technical Context
This emitter-follower-based linear regulator operates without external pass transistors, using internal bipolar architecture to sustain regulation at VIN ≥10V and up to 100V. Its enable function directly controls base drive to the series pass element, allowing fast output toggling with <100nA enable leakage when open.
Thermal performance is defined by RθJA = 90°C/W on 15mm×15mm 1oz copper and RθJL = 8.39°C/W to the exposed VIN pad. Safe operating area is explicitly bounded: at VIN = 48V, continuous IOUT is limited to 50mA; pulsed IOM reaches 100mA for ≤10ms pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 10 V to 100 V - supports direct connection to PoE midspan or telecom line supplies without pre-regulation |
| Output Voltage | 5.0 V ±2% - tight regulation enables stable MCU/PHY core supply in noise-sensitive networking gear |
| Max Continuous Output Current | 50 mA - thermally limited at TA = +25°C on 15mm×15mm copper; requires heatsinking above 35°C ambient |
| Enable Threshold | EN = GND (≤1 V) disables output to ≤1 V; EN open (–100 nA < IEN < 100 nA) enables regulation - compatible with microcontroller GPIO without level shifters |
| Line Regulation | ±10 mV - variation over full 10–100 V input range ensures consistent downstream logic voltage despite input ripple |
| PSRR | 57 dB @ 100 Hz - suppresses low-frequency noise from switching converters upstream in hybrid power architectures |
| Quiescent Current | 300–900 µA - scales with VIN (650 µA typ. at 48 V); critical for standby power budgeting in always-on PoE devices |
Pinout & Package
Package: TO252-4 (DPAK) with exposed VIN pad for thermal conduction; 0.34 g mass; UL 94V-0 rated molding compound; matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | High-voltage input supply | Connects to 10–100 V source; exposed pad must be soldered to ≥15 mm² copper for thermal management |
| GND | Power ground reference | Low-impedance return path for load current and enable logic; ties to system ground plane |
| VOUT | Regulated 5 V output | Delivers up to 50 mA; requires ≥100 nF ceramic capacitor to GND for stability and noise suppression |
| EN | Enable control input | Open-circuit = enabled; pulled to GND = disabled; no pull-up required; compatible with 3.3 V/5 V logic |
Key Features
| Feature | Design Value |
|---|---|
| Integrated high-voltage series pass stage | Eliminates need for external NPN/PNP transistor and bias network, reducing BOM count and PCB footprint by >40% vs discrete solutions |
| Enable-controlled output toggle | EN pin directly gates regulator operation with sub-1 µs response; enables dynamic power cycling of PHY or interface ICs |
| ±4% output tolerance over full temperature range | Ensures reliable 5 V rail delivery from –55°C to +125°C without external trimming or compensation components |
| Lead-free, halogen-free, antimony-free construction | Meets RoHS 2 (2011/65/EU) and green manufacturing requirements for telecom and industrial deployments |
| ESD robustness | HBM rating of 4000 V allows safe handling during board assembly and field service without special ESD precautions |
Applications
| Power over Ethernet (PoE) Powered Device | Telecom Line Card Power |
|---|---|
Use Scenario: Regulating 48 V PoE input to clean 5 V for Ethernet PHY, microcontroller, and LED indicators in IP phones or wireless access points. IC Role / Device Role / Timing Role: Primary DC-DC conversion stage providing isolated, low-noise 5 V rail independent of PoE PSE negotiation timing. Use Value: Enables single-chip solution replacing 3–4 discrete components (transistor, Zener, resistors), reducing layout complexity and improving thermal reliability under sustained 48 V input. |
Use Scenario: Generating stable 5 V supply from –48 V telecom battery backup systems with reverse-polarity protection and wide input tolerance. IC Role / Device Role / Timing Role: High-input-voltage linear regulator supplying control logic and monitoring circuitry on carrier-grade line cards. Use Value: Maintains regulation down to 10 V input, supporting brownout conditions during battery discharge while holding ±2% output accuracy. |
| Industrial Network Switch | Network Surveillance Camera |
Use Scenario: Providing auxiliary 5 V rail for management controllers and SFP+ module interfaces in Layer 3 switches operating from 24–60 V DC inputs. IC Role / Device Role / Timing Role: Secondary regulator decoupling sensitive digital logic from noisy primary DC-DC converter outputs. Use Value: 57 dB PSRR at 100 Hz attenuates switching ripple from upstream converters, preventing data corruption in high-speed serial links. |
Use Scenario: Delivering regulated 5 V to image sensor, ISP, and Wi-Fi SoC in outdoor PoE cameras exposed to –40°C to +85°C ambient. IC Role / Device Role / Timing Role: Temperature-stable voltage source enabling consistent sensor bias and clock generation across extreme environments. Use Value: ±4% output tolerance over –55°C to +125°C eliminates need for external calibration, simplifying qualification for IP66/IP67 enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT3080IMSE#PBF | Adjustable output (0–36 V), 1.1 A max, requires external resistor divider; RθJA = 50°C/W on larger 25 mm² copper | Used where programmable output or higher current is needed; not drop-in for fixed 5 V PoE designs | Select only if adjustable output or >50 mA load is required; adds BOM cost and layout area |
| TPS7A4701RGWR | Fixed 5 V option available; 1 A max; input up to 36 V only; requires external bypass capacitor for stability | Suitable for lower-input-voltage industrial systems (<36 V); cannot replace ZXTR1005K4-13 in 48 V PoE or telecom line card roles | Choose only for sub-36 V applications where higher current and better PSRR (70 dB) justify cost premium |
Compared with LT3080IMSE#PBF and TPS7A4701RGWR, ZXTR1005K4-13 uniquely supports 100 V input in a compact TO252-4 package with integrated enable, making it the only viable fixed-5V solution for PoE-powered equipment without external pass devices or complex compensation.
Availability
ZXTR1005K4-13 is available at Aetrix Electronics and suitable for Power over Ethernet (PoE) powered devices, telecom line cards, and industrial network switches requiring stable component supply across extended temperature and high-input-voltage conditions.
Supply support for ZXTR1005K4-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, computing, and communications markets.
ZXTR1005K4 belongs to Diodes' high-voltage linear regulator product line, engineered specifically for direct regulation from PoE, telecom, and industrial DC bus voltages where conventional LDOs fail due to input voltage limitations.
FAQ
What is the minimum input voltage required for regulation?
The ZXTR1005K4-13 requires a minimum input voltage of 10 V to maintain specified line regulation and output accuracy. Below this threshold, output voltage drops nonlinearly and falls outside the ±2% tolerance band. This 10 V minimum enables operation during brownout conditions in PoE systems where input may sag to 37 V nominal but dip transiently lower.
Can the EN pin be driven by a 3.3 V microcontroller GPIO?
Yes - the EN pin is compatible with 3.3 V logic: leaving it open (high-impedance) enables the regulator, while pulling it to GND (≤1 V) disables output. No level-shifting circuitry is needed, and the enable leakage current is limited to ±100 nA in the open state, ensuring negligible loading on MCU pins.
How does thermal performance change on smaller PCB copper areas?
On a 15 mm × 15 mm 1 oz copper pad, RθJA is 90°C/W - doubling the thermal resistance versus the 50 mm × 50 mm reference (44°C/W). At 48 V input and 50 mA load, junction temperature rise exceeds 225°C without derating, so output current must be reduced to ~22 mA at +25°C ambient to stay within the +125°C TJ limit.
Is an input capacitor required?
A 1 µF capacitor from VIN to GND is recommended per the datasheet to suppress high-frequency noise and stabilize the input supply, especially when fed from long traces or switching converters. While not strictly mandatory for basic regulation, omission risks instability and increased output ripple in electrically noisy PoE or telecom environments.
ZXTR1005K4-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 100V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 50mA
- Current - Quiescent (Iq):
- 500 µA
- Current - Supply (Max):
- 900 µA
- PSRR:
- 57dB (100Hz)
- Control Features:
- Enable
- Protection Features:
- -
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-4L
ZXTR1005K4-13 FAQ
1.How can I place an order for ZXTR1005K4-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXTR1005K4-13 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 ZXTR1005K4-13 reliable?
The price and inventory of ZXTR1005K4-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXTR1005K4-13 is usually 5 days.
3.What payment methods are accepted for ZXTR1005K4-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXTR1005K4-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXTR1005K4-13?
ZXTR1005K4-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXTR1005K4-13 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 ZXTR1005K4-13?
For technical support, including ZXTR1005K4-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXTR1005K4-13 requirements.
6.How does Aetrix verify that ZXTR1005K4-13 is sourced from the original manufacturer or authorized distributors?
All ZXTR1005K4-13 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 ZXTR1005K4-13 meets industry standards.
7.What is the process for return or replacement of ZXTR1005K4-13?
All ZXTR1005K4-13 units undergo pre-shipment inspection (PSI). If there is an issue with ZXTR1005K4-13, 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 ZXTR1005K4-13 part is unused and in its original packaging.
Return procedure for ZXTR1005K4-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ZXTR1005K4-13 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
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.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
