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onsemi NCV87722DT33RKG
- Part No.:
- NCV87722DT33RKG
- Manufacturer:
- onsemi
- Package:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Datasheet:
-
NCV87722DT33RKG.pdf
- Description:
- IC REG LINEAR 3.3V 350MA DPAK-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,153
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Product details
Overview
NCV87722DT33RKG from onsemi is a 3.3 V, 350 mA automotive-grade LDO regulator with integrated reset function, ultra-low 24 µA typical quiescent current, enable control, and ±1.5% output voltage accuracy over −40°C to 125°C - designed for body control modules and instrument clusters requiring permanent battery connection.
For engineers reviewing the NCV87722DT33RKG datasheet, pinout, applications, or equivalent options, key selection criteria include its 16 ms reset delay, 93% reset threshold, DPAK-5 package thermal performance (RJA = 56 °C/W), reverse output current protection, and compatibility with ceramic output capacitors down to 1 µF.
Technical Context
The NCV87722DT33RKG integrates a precision bandgap reference, error amplifier, current-limit driver, thermal shutdown circuitry, and reset comparator with adjustable power-on delay. Its architecture supports stable operation across input voltages from 4.5 V to 40 V while maintaining regulation under load transients up to 350 mA.
Reset functionality is triggered when VOUT drops below 93% of nominal (3.069 V at 3.3 V), with RO sinking up to 1.3 mA and featuring an internal 30 kΩ pull-up to VOUT. The DT pin is absent in DPAK-5; reset delay is fixed at 16 ms per ordering code "2".
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3 V ±1.5% (−40°C to 125°C), enabling direct MCU core supply without external trimming |
| Max Output Current | 350 mA continuous, supporting multi-rail microprocessor subsystems in automotive ECUs |
| Quiescent Current | 24 µA typical (≤30 µA max), minimizing battery drain during vehicle sleep mode |
| Input Voltage Range | 4.5 V to 40 V DC, compatible with 12 V automotive battery systems including load dump transients |
| Dropout Voltage | 440 mV at 350 mA (TJ = 25°C), allowing operation down to 3.74 V input for 3.3 V output |
| Reset Threshold | 93% of VOUT (3.069 V), with 2% hysteresis, ensuring reliable microprocessor reset during brown-out |
| Reset Delay | 16 ms fixed (ordering code "2"), meeting ASAM/ISO 16750-2 cold-cranking timing requirements |
Pinout & Package
DPAK-5 (Case 175AA) package with exposed thermal pad (Tab = GND), rated for 2.35 W max power dissipation at 25°C ambient on 1 oz copper (645 mm²).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1. Vin | Positive input supply | Accepts 4.5–40 V; requires 0.1 µF ceramic decoupling capacitor placed adjacent to pin |
| 2. RO | Reset output | Open-drain active-low signal; internal 30 kΩ pull-up to VOUT; sinks ≥1.3 mA at VRO = 0.25 V |
| 3. Tab/GND | Power ground & thermal path | Exposed copper pad must be soldered to PCB ground plane for thermal management and EMI reduction |
| 4. EN | Enable control input | Logic-low (<0.8 V) disables regulator, reducing IQ to ≤1 µA; high-Z when floating |
| 5. Vout | Regulated output | Delivers 3.3 V ±1.5%; requires ≥1 µF ceramic capacitor (ESR < 100 Ω) for stability |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 24 µA typical enables >10-year battery life in always-on automotive modules |
| Integrated reset with fixed delay | 16 ms power-on reset delay ensures deterministic microprocessor initialization sequence |
| Reverse output current protection | Blocks reverse current flow from VOUT to VIN during input loss, preventing backfeeding |
| Wide input voltage range | 40 V absolute max rating withstands ISO 7637-2 pulse 5a (load dump) without external clamping |
| Automotive qualification | AEC-Q100 Grade 1 (−40°C to +125°C junction), Pb-free, and RoHS compliant |
Applications
| Body Control Module | Instruments and Clusters |
|---|---|
Use Scenario: Powering CAN/LIN transceivers, door lock actuators, and interior lighting controllers in low-power sleep state. IC Role / Device Role / Timing Role: Primary 3.3 V LDO with reset signaling to MCU upon undervoltage detection. Use Value: 24 µA IQ extends vehicle battery life during extended parking; 16 ms reset ensures synchronized boot after ignition cycle. | Use Scenario: Supplying display drivers, gauge microcontrollers, and backlight dimming ICs in digital instrument panels. IC Role / Device Role / Timing Role: Stable 3.3 V rail generator with fault reporting via RO pin to cluster MCU. Use Value: ±1.5% output accuracy maintains display contrast and ADC reference integrity; 40 V input tolerance handles alternator transients. |
| Occupant Protection Systems | Powertrain Sensors |
Use Scenario: Providing regulated power to airbag diagnostic circuits and seat occupancy sensors in standby mode. IC Role / Device Role / Timing Role: Always-on LDO with reset assertion during battery sag to trigger safety diagnostics. Use Value: Reverse output current protection prevents sensor bus corruption during battery disconnect; thermal shutdown (175°C) guards against under-hood overheating. | Use Scenario: Powering crankshaft/camshaft position sensors and knock sensor signal conditioners in engine control units. IC Role / Device Role / Timing Role: Noise-immune 3.3 V supply with PSRR >60 dB at 100 Hz to reject alternator ripple. Use Value: Low dropout (440 mV @ 350 mA) sustains regulation during cranking (6.5 V battery); robust ESD protection (2 kV HBM) survives assembly handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73333PDBVR | 300 mA max output, 45 µA IQ, no integrated reset, SOT-23-5 package | Lacks reset output and automotive qualification; suitable only for non-safety-critical consumer designs | Select only if reset signaling is handled externally and AEC-Q100 compliance is not required. |
| TPS7B6733QPWPRQ1 | 400 mA output, 25 µA IQ, adjustable reset delay (0.5–1000 ms), HTSSOP-8 package | Offers programmable reset but requires external RC network; larger footprint than DPAK-5 | Choose when flexible reset timing is needed and board space allows HTSSOP-8 mounting. |
Compared with TLV73333PDBVR and TPS7B6733QPWPRQ1, the NCV87722DT33RKG delivers fixed 16 ms automotive-grade reset in a thermally optimized DPAK-5 package - eliminating external components while meeting stringent ISO 16750-2 transient immunity and ASAM boot timing requirements.
Availability
NCV87722DT33RKG is available at Aetrix Electronics and suitable for body control modules, instrument clusters, occupant protection systems, and powertrain sensors requiring stable component supply across automotive production lifecycles.
Supply support for NCV87722DT33RKG 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, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.
The NCV8772 series belongs to onsemi's automotive power management portfolio, engineered specifically for microprocessor power domains in harsh environments - emphasizing ultra-low IQ, integrated system monitoring, and AEC-Q100 reliability.
FAQ
What is the reset threshold voltage for NCV87722DT33RKG?
The NCV87722DT33RKG has a fixed reset threshold of 93% of its nominal output voltage, which equals 3.069 V (3.3 V × 0.93). This threshold is guaranteed over temperature (−40°C to +125°C) and triggers the RO pin to go low when VOUT falls below this level. Hysteresis is 2% of VOUT, ensuring clean release at 3.135 V.
Does NCV87722DT33RKG require an external pull-up resistor on the RO pin?
No, the NCV87722DT33RKG includes an internal 30 kΩ pull-up resistor connected to VOUT on the RO pin. This eliminates the need for an external pull-up and ensures proper logic-high state during normal operation. The RO pin is open-drain and sinks ≥1.3 mA when asserted low.
What package type and thermal characteristics does NCV87722DT33RKG use?
The NCV87722DT33RKG uses the DPAK-5 (Case 175AA) package with an exposed thermal pad. Its thermal resistance is RJA = 56 °C/W and RJC = 8.4 °C/W when mounted on 645 mm² of 1 oz copper on FR4. This allows up to 2.35 W power dissipation at 25°C ambient, supporting high-current automotive loads.
Can NCV87722DT33RKG operate with ceramic output capacitors?
Yes, the NCV87722DT33RKG is stable with ceramic output capacitors as low as 1 µF and ESR < 100 Ω. Unlike many LDOs, it does not require minimum ESR for stability - simplifying design and reducing BOM cost. The stability region vs. output current is documented in Figure 17 of the datasheet.
What is the maximum input voltage transient the NCV87722DT33RKG can withstand?
The NCV87722DT33RKG supports 45 V transient input voltage for durations under 100 ms (per Absolute Maximum Ratings). This exceeds ISO 7637-2 Pulse 5a (load dump) requirements for 12 V automotive systems, enabling direct connection to battery rails without external TVS clamping in most implementations.
NCV87722DT33RKG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.875V @ 350mA
- Current - Output:
- 350mA
- Current - Quiescent (Iq):
- 29 µA
- Current - Supply (Max):
- 30 µA
- PSRR:
- 60dB (100Hz)
- Control Features:
- Enable, Reset
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK-5
NCV87722DT33RKG FAQ
1.How can I place an order for NCV87722DT33RKG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV87722DT33RKG 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 NCV87722DT33RKG reliable?
The price and inventory of NCV87722DT33RKG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV87722DT33RKG is usually 5 days.
3.What payment methods are accepted for NCV87722DT33RKG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV87722DT33RKG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV87722DT33RKG?
NCV87722DT33RKG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV87722DT33RKG 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 NCV87722DT33RKG?
For technical support, including NCV87722DT33RKG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV87722DT33RKG requirements.
6.How does Aetrix verify that NCV87722DT33RKG is sourced from the original manufacturer or authorized distributors?
All NCV87722DT33RKG 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 NCV87722DT33RKG meets industry standards.
7.What is the process for return or replacement of NCV87722DT33RKG?
All NCV87722DT33RKG units undergo pre-shipment inspection (PSI). If there is an issue with NCV87722DT33RKG, 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 NCV87722DT33RKG part is unused and in its original packaging.
Return procedure for NCV87722DT33RKG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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