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onsemi CS8120YDPR5
- Part No.:
- CS8120YDPR5
- Manufacturer:
- onsemi
- Package:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Datasheet:
-
CS8120YDPR5.pdf
- Description:
- IC REG LINEAR 5V 300MA D2PAK-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,982
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Product details
Overview
CS8120YDPR5 from onsemi is a 5.0 V ±4.0%, 300 mA precision linear regulator in D2PAK-5 package with integrated ENABLE and RESET functions, 1.0 V dropout at 200 mA, 2.5 mA quiescent current, and fault protection against thermal shutdown, short circuit, and 60 V load dump - used in automotive power management and microprocessor supply systems.
For engineers reviewing the CS8120YDPR5 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, package mapping to CASE 936AC, functional role in board-level power control, and validated alternative options for automotive and industrial embedded designs.
Technical Context
The CS8120YDPR5 employs a composite NPN–PNP output stage to achieve low dropout (1.0 V @ 200 mA) while limiting quiescent current to 2.5 mA. Its internal bandgap reference switches from VIN to VOUT after regulation onset, enhancing PSRR beyond 40 dB at 120 Hz.
ENABLE is a CMOS-compatible input with 2.9 V turn-off threshold and 0.8 V hysteresis; RESET is an open-collector NPN output valid down to VOUT = 1.0 V, with 40 mV hysteresis and programmable delay via external RC network.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±4.0% - maintains stable MCU core voltage across −40°C to +125°C junction temperature. |
| Max Output Current | 300 mA - supports single-rail microprocessor or peripheral ICs without external pass devices. |
| Dropout Voltage | 1.0 V @ 200 mA - enables operation from 6 V input in automotive cold-crank conditions (VIN ≥ 6 V). |
| Quiescent Current | 2.5 mA @ IOUT = 150 mA - minimizes standby power loss in always-on vehicle modules. |
| RESET Threshold | VRL = VOUT − 0.14 V, VRH = VOUT − 0.04 V - ensures reliable brown-out detection with 40 mV hysteresis. |
| ENABLE Threshold | VIL = 2.1 V, VIH = 2.9 V - compatible with 3.3 V and 5 V logic families without level-shifting. |
| Fault Protection | Thermal shutdown at 150°C, short-circuit current limit 300–600 mA, 60 V load dump tolerance - survives automotive transients per ISO 7637-2. |
Pinout & Package
D2PAK-5 package (CASE 936AC), surface-mount, thermally enhanced with exposed drain pad; pin 1 = VIN, pin 2 = ENABLE, pin 3 = GND, pin 4 = RESET, pin 5 = VOUT. SENSE terminal not present in D2PAK-5 variant (only in SO-14/DIP-8).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Input supply rail | Accepts 7.0–26 V DC; withstands 60 V load dump transients without latch-up. |
| 2 - ENABLE | CMOS-compatible enable input | Drives output into high-impedance state when >2.9 V; draws only 250 µA in Sleep mode. |
| 3 - GND | Power and signal reference | Common return path for all internal circuits; must be low-impedance for RESET accuracy. |
| 4 - RESET | Open-collector reset output | Sinks current when VOUT falls below regulation; requires external pull-up to VOUT or system rail. |
| 5 - VOUT | Regulated 5.0 V output | Delivers up to 300 mA; output capacitor (10 µF min) required for stability per Figure 14. |
Key Features
| Feature | Design Value |
|---|---|
| Low-dropout operation | 1.0 V dropout at 200 mA enables use with 6 V battery inputs during cold-crank. |
| Microprocessor control interface | ENABLE and RESET pins provide direct GPIO compatibility for ARM/Cortex-M boot sequencing. |
| Transient-hardened design | 60 V load dump rating and internal overvoltage shutdown protect against ISO 7637-2 Pulse 5a/b. |
| Thermal robustness | 150°C thermal shutdown threshold with 40°C hysteresis prevents repeated cycling in enclosed enclosures. |
| Stable under wide ESR | Compatible with aluminum electrolytic (10 µF, 50 mΩ ESR) and tantalum capacitors - avoids ceramic instability. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC I/O Power Rail |
|---|---|
Use Scenario: Powers microcontroller and CAN transceiver in door module with ignition-switched input and battery-backup requirements. IC Role / Device Role / Timing Role: Primary 5 V supply regulator with ENABLE controlled by microcontroller wake-up signal and RESET tied to MCU reset input. Use Value: 250 µA Sleep current extends battery life during vehicle sleep mode; RESET assertion at VOUT < 4.86 V ensures deterministic MCU restart after brown-out. | Use Scenario: Supplies isolated 5 V rail to digital input conditioning circuitry in DIN-rail mounted controller. IC Role / Device Role / Timing Role: Local point-of-load regulator with RESET monitoring output voltage integrity before enabling downstream logic. Use Value: 60 V load dump tolerance eliminates need for external TVS; thermal shutdown prevents field failure in high-ambient cabinets. |
| Telematics Head-End Unit | Medical Diagnostic Portable Device |
Use Scenario: Provides clean 5 V supply to GPS baseband processor and cellular modem in connected vehicle gateway. IC Role / Device Role / Timing Role: Regulator with ENABLE synchronized to modem power-down sequence and RESET used for firmware watchdog recovery. Use Value: 40 dB PSRR at 120 Hz suppresses alternator ripple; composite output stage ensures fast transient response to burst data transmission loads. | Use Scenario: Powers microcontroller and sensor interface ASIC in battery-operated handheld diagnostic tool. IC Role / Device Role / Timing Role: Main system regulator with ENABLE managed by power manager IC and RESET feeding system supervisor. Use Value: 1.0 V dropout allows >20% longer runtime from 7.2 V Li-ion pack; ±4.0% output tolerance meets IEC 62304 Class B voltage accuracy requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear regulator with RESET and ENABLE applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV70750PDQNR | Lower IQ (25 µA), lower max current (300 mA same), no load dump rating, SOT-23-5 package | Lacks 60 V transient immunity; unsuitable for automotive front-end but fits space-constrained portable designs | Select when ultra-low quiescent current is critical and input transients are filtered externally. |
| TPS7B6950QDCYRQ1 | Automotive AEC-Q100 qualified, 45 V abs max, 250 mA output, integrated watchdog timer | Higher reliability grade and extended temp range (−40°C to +150°C), but lower output current | Prefer for ASIL-B systems requiring qualification evidence and tighter parametric drift over lifetime. |
Compared with TLV70750PDQNR and TPS7B6950QDCYRQ1, the CS8120YDPR5 offers superior load dump survivability and higher output current in a thermally efficient D2PAK-5 package, making it optimal for cost-sensitive automotive body electronics where 300 mA and 60 V tolerance are mandatory.
Availability
CS8120YDPR5 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O power rails, telematics head-end units, and medical diagnostic portable devices requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for CS8120YDPR5 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensors, and connectivity solutions for automotive, industrial, and cloud power applications.
The CS8120YDPR5 belongs to the SMART REGULATOR™ family, designed specifically for automotive and industrial embedded systems requiring integrated power control, fault resilience, and microprocessor-compatible supervision signals.
FAQ
What is the maximum input voltage rating for the CS8120YDPR5?
The CS8120YDPR5 has an absolute maximum DC input voltage of 26 V and is rated for 60 V load dump transients per ISO 7637-2. Operation above 26 V triggers internal overvoltage shutdown to protect the die. For sustained operation, VIN must remain between 7.0 V and 26 V as specified in the Electrical Characteristics table on page 3 of the datasheet. The CS8120YDPR5 is engineered for 12 V automotive systems including cold-crank and load-dump scenarios.
Does the CS8120YDPR5 require an external capacitor on the RESET pin?
Yes, the CS8120YDPR5 requires an external RC network on the RESET pin to set power-on reset delay time, as shown in Figure 12 of the datasheet. A typical configuration uses RRST = 500 kΩ and CRST = 22 µF to generate ~100 ms delay. The RESET pin is an open-collector NPN output and must be pulled up to VOUT or another stable rail; no capacitor is placed directly on the pin without the series resistor. The CS8120YDPR5's RESET function remains valid down to VOUT = 1.0 V regardless of RC values.
What is the thermal resistance (RJA) of the CS8120YDPR5 in standard PCB layout?
The CS8120YDPR5 in D2PAK-5 package has a typical RJA of 10–50°C/W depending on copper area and layer count - per Package Thermal Data table on page 13. With 1 in² (6.45 cm²) of 2 oz copper on top and bottom layers connected to the exposed drain pad, RJA ≈ 25°C/W is achievable. The datasheet specifies RJC = 3.1°C/W, so actual RJA is dominated by PCB layout; insufficient copper will cause thermal shutdown at <200 mA continuous load. The CS8120YDPR5 must be mounted with solder paste coverage ≥90% on the thermal pad for rated performance.
Can the CS8120YDPR5 be used without the ENABLE function?
Yes, the CS8120YDPR5 operates continuously when ENABLE is tied to GND (logic low). In this configuration, the regulator delivers full 300 mA output with 2.5 mA quiescent current and full RESET functionality. Leaving ENABLE floating is not recommended due to noise susceptibility; if unused, connect directly to GND via ≤1 kΩ resistor. The CS8120YDPR5 does not require external pull-down - its ENABLE input has defined thresholds (VIH = 2.9 V, VIL = 2.1 V) and draws negligible current (<±10 µA), making direct GND tie safe and common in fixed-power applications.
Is the CS8120YDPR5 pin-compatible with other packages in the CS8120 family?
No, the CS8120YDPR5 (D2PAK-5) is not pin-compatible with SO-14, DIP-8, or TO-220-5 variants. Pin 1 (VIN) and pin 5 (VOUT) align, but ENABLE and RESET positions differ: D2PAK-5 uses pins 2 and 4, while SO-14 uses pins 2 and 4 *and* includes SENSE on pin 13. DIP-8 places ENABLE on pin 8 and RESET on pin 3. Layout redesign is required when substituting packages. The CS8120YDPR5 shares identical electrical behavior and timing specs across packages, but mechanical and pinout differences mandate separate PCB footprints.
CS8120YDPR5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 26V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.5V @ 200mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 650 µA
- Current - Supply (Max):
- 15 mA
- PSRR:
- 70dB (120Hz)
- Control Features:
- Enable, Reset
- Protection Features:
- Over Temperature, Over Voltage, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK-5
CS8120YDPR5 FAQ
1.How can I place an order for CS8120YDPR5 through Aetrix?
Please submit a Request for Quotation (RFQ) for CS8120YDPR5 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 CS8120YDPR5 reliable?
The price and inventory of CS8120YDPR5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CS8120YDPR5 is usually 5 days.
3.What payment methods are accepted for CS8120YDPR5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CS8120YDPR5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CS8120YDPR5?
CS8120YDPR5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CS8120YDPR5 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 CS8120YDPR5?
For technical support, including CS8120YDPR5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CS8120YDPR5 requirements.
6.How does Aetrix verify that CS8120YDPR5 is sourced from the original manufacturer or authorized distributors?
All CS8120YDPR5 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 CS8120YDPR5 meets industry standards.
7.What is the process for return or replacement of CS8120YDPR5?
All CS8120YDPR5 units undergo pre-shipment inspection (PSI). If there is an issue with CS8120YDPR5, 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 CS8120YDPR5 part is unused and in its original packaging.
Return procedure for CS8120YDPR5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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