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Analog Devices Inc. ADP3333ARMZ-3.15R7
- Part No.:
- ADP3333ARMZ-3.15R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADP3333ARMZ-3.15R7.pdf
- Description:
- IC REG LINEAR 3.15V 300MA 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:798
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Product details
Overview
ADP3333ARMZ-3.15R7 from Analog Devices is a precision 3.15 V fixed-output low dropout (LDO) voltage regulator delivering up to 300 mA with ±0.8% accuracy at 25°C, 230 mV max dropout at full load, and ultralow 70 μA typical quiescent current. It operates from 2.6 V to 12 V input and targets space-constrained, battery-powered applications requiring stable low-noise supply for DSPs or ASICs.
For engineers reviewing the ADP3333ARMZ-3.15R7 datasheet, ADP3333ARMZ-3.15R7 pinout, ADP3333ARMZ-3.15R7 application, or ADP3333ARMZ-3.15R7 equivalent, key selection criteria include its anyCAP® stability with 1.0 µF MLCC output capacitors, active-low shutdown (<1 µA off-state current), thermal/current limiting, and MSOP-8 package compatibility with MAX8860 footprint.
Technical Context
The ADP3333ARMZ-3.15R7 employs a patented single-loop regulation architecture with a temperature-proportional offset amplifier and noninverting driver, enabling ESR-insensitive stability and high gain for ±1.8% total accuracy over line, load, and −40°C to +85°C ambient temperature.
Its internal band gap reference and resistive divider (R1/R2) are calibrated for 3.15 V output; the SD pin provides active-low enable control with 0.4 V turn-off threshold and 2.0 V turn-on threshold, while NC pins (4–6, 8) must be grounded for optimal thermal performance in the 8-lead MSOP package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.15 V ±0.8% at 25°C; ensures precise biasing for 3.3 V-tolerant logic without external feedback. |
| Max Dropout Voltage | 230 mV at 300 mA load; enables operation with only 3.38 V input for full-rated output, critical for single-cell Li-ion systems. |
| Ground Current | 70 μA typical at light load (0.1 mA); extends battery life in standby modes of portable electronics. |
| Output Capacitor Requirement | Stable with ≥1.0 µF ceramic (MLCC); eliminates ESR constraints and simplifies layout in dense PCBs. |
| Shutdown Current | <0.011 μA at VIN = 12 V; reduces system leakage to negligible levels during deep sleep. |
| Input Voltage Range | 2.6 V to 12 V; supports wide-input industrial rails and multi-cell battery configurations. |
| Noise (10 Hz–100 kHz) | 45 μV rms at 300 mA; minimizes power-supply-induced jitter in analog/RF signal chains. |
Pinout & Package
ADP3333ARMZ-3.15R7 is housed in an 8-lead MSOP (RM-8) package with exposed thermal pad (not electrically connected). Pin 1 is OUT; Pins 4–6 and 8 are no-connect but must be tied to GND for thermal integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Regulated output | Delivers 3.15 V; requires ≥1.0 µF bypass capacitor to GND for stability and transient response. |
| 2 (IN) | Input supply | Accepts 2.6–12 V; benefits from 1.0 µF bypass to GND to suppress input transients and trace inductance. |
| 3 (GND) | Power ground | Reference node for regulation; connects to system ground plane with low-inductance path. |
| 4–6, 8 (NC) | No connect | Thermally conductive; must be soldered to GND plane to reduce θJA by ~10% and prevent thermal derating. |
| 7 (SD) | Active-low shutdown | Pull ≤0.4 V to disable output; tie to IN for always-on operation; draws ≤0.85 μA when biased. |
Key Features
| Feature | Design Value |
|---|---|
| anyCAP® stability | Guaranteed stable with 1.0 µF ceramic capacitors regardless of ESR-eliminates capacitor selection risk and saves board area. |
| Ultralow IQ | 70 μA typical ground current at light load enables >1-year battery life in IoT sensors with periodic wake-up cycles. |
| High accuracy | ±1.8% over temperature, line, and load ensures reliable operation across automotive and industrial environments without calibration. |
| Integrated protection | Current limit (~1 A short-circuit peak) and thermal shutdown (165°C trip) prevent damage during fault conditions without external circuitry. |
| Low noise output | 45 μV rms noise enables clean power for ADC references, RF synthesizers, and precision analog front-ends. |
Applications
| Cellular Phone Baseband | DSP Power Supply |
|---|---|
Use Scenario: Powering baseband processor core voltage in 3G/4G handsets with tight space constraints and aggressive battery life targets. IC Role / Device Role / Timing Role: Primary LDO delivering regulated 3.15 V to processor I/O banks, replacing switching regulators where EMI sensitivity prohibits inductor use. Use Value: anyCAP® support for 1.0 µF MLCC reduces solution size by 40% vs. traditional LDOs requiring bulk tantalum + ceramic combos. |
Use Scenario: Providing low-noise, stable supply to TI C6000 or Analog Devices SHARC DSPs in audio processing modules. IC Role / Device Role / Timing Role: Post-regulator for switched-mode power supply (SMPS) outputs, cleaning ripple before sensitive digital signal paths. Use Value: 45 μV rms noise and 70 dB PSRR at 100 kHz suppress SMPS switching artifacts that would otherwise degrade SNR in real-time audio streams. |
| PCMCIA Card Power | ASIC Core Supply |
Use Scenario: Generating 3.15 V from 5 V host bus for legacy PCMCIA cards with strict thermal and height limits. IC Role / Device Role / Timing Role: Standalone LDO managing card-level power sequencing and brown-out immunity during hot-plug events. Use Value: 230 mV dropout allows full 300 mA delivery even as host voltage sags to 3.38 V, preventing reset during transient load surges. |
Use Scenario: Supplying configurable logic blocks in Xilinx Spartan or Intel MAX II FPGAs where core voltage tolerance is ±3%. IC Role / Device Role / Timing Role: Precision point-of-load regulator ensuring timing margin compliance under dynamic current steps up to 200 mA/µs. Use Value: ±1.8% total accuracy guarantees FPGA configuration registers remain valid across −40°C to +85°C, avoiding bitstream corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX8860EUK31-5 | 3.1 V output, ±2% accuracy over temp, 350 mV dropout at 300 mA, requires 2.2 µF min output cap. | Lacks anyCAP® flexibility; needs higher-ESR tantalum for stability, increasing cost and footprint. | Choose if legacy MAX8860 footprint reuse is mandatory and 0.05 V output tolerance is acceptable. |
| TPS7333QDBVRQ1 | 3.3 V output, ±2% accuracy, 300 mV dropout, 250 μA IQ, automotive-grade (−40°C to +125°C). | Higher output voltage and wider temp range suit automotive body control modules, not portable consumer devices. | Choose for AEC-Q100-compliant designs needing 3.3 V; not drop-in due to voltage mismatch and different pinout. |
Compared with ADP3333ARMZ-3.15R7, MAX8860EUK31-5 trades accuracy and capacitor flexibility for pin compatibility, while TPS7333QDBVRQ1 offers automotive qualification at the expense of output voltage mismatch and higher quiescent current-neither is pin-compatible, and both require layout revision.
Availability
ADP3333ARMZ-3.15R7 is available at Aetrix Electronics and suitable for cellular phone baseband, DSP power supply, PCMCIA card power, ASIC core supply, and portable medical device applications requiring stable component supply with RoHS-compliant packaging and full traceability.
Supply support for ADP3333ARMZ-3.15R7 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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design centers worldwide and a focus on precision, power efficiency, and reliability.
The ADP333x family was designed specifically for portable and space-constrained systems demanding ultralow IQ, high accuracy, and capacitor-agnostic stability-enabling robust power management in battery-operated consumer and industrial edge devices.
FAQ
What is the guaranteed output voltage tolerance for ADP3333ARMZ-3.15R7 over temperature?
The ADP3333ARMZ-3.15R7 guarantees ±1.8% output voltage accuracy over the full −40°C to +85°C ambient temperature range, including all line, load, and process variations. This specification is validated per Analog Devices' Rev. B datasheet Table 1 and ensures reliable operation in industrial and automotive-adjacent environments without external trimming.
Can ADP3333ARMZ-3.15R7 operate stably with a 0.47 µF ceramic capacitor?
No-ADP3333ARMZ-3.15R7 requires a minimum 1.0 µF output capacitor for guaranteed stability per datasheet Section "Capacitor Selection." Using 0.47 µF violates the stability condition and may cause oscillation or poor transient response; 1.0 µF X7R MLCC is the validated minimum value.
Is ADP3333ARMZ-3.15R7 pin-compatible with MAX8860?
Yes-ADP3333ARMZ-3.15R7 is explicitly stated in the datasheet General Description as pin-compatible with the MAX8860, sharing identical 8-lead MSOP pinout and function mapping (OUT, IN, GND, SD, and NC pins in same positions), enabling direct replacement in existing layouts.
What is the maximum junction temperature for ADP3333ARMZ-3.15R7 during continuous operation?
The ADP3333ARMZ-3.15R7 has a maximum operating junction temperature of +125°C per Absolute Maximum Ratings (Table 2). Thermal overload protection activates at +165°C to limit die temperature, but sustained operation above +125°C risks long-term reliability degradation and is outside the specified operating range.
Does ADP3333ARMZ-3.15R7 support reverse current protection?
No-the ADP3333ARMZ-3.15R7 does not integrate reverse current protection. If the output voltage exceeds the input (e.g., during hot-swap or backup battery scenarios), current can flow backward from OUT to IN through the internal pass transistor's body diode, potentially damaging upstream circuitry unless externally blocked.
ADP3333ARMZ-3.15R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- anyCAP®
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 12V
- Voltage - Output (Min/Fixed):
- 3.15V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.23V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 100 µA
- Current - Supply (Max):
- 5.5 mA
- PSRR:
- -
- Control Features:
- Shutdown
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
ADP3333ARMZ-3.15R7 FAQ
1.How can I place an order for ADP3333ARMZ-3.15R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP3333ARMZ-3.15R7 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 ADP3333ARMZ-3.15R7 reliable?
The price and inventory of ADP3333ARMZ-3.15R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP3333ARMZ-3.15R7 is usually 5 days.
3.What payment methods are accepted for ADP3333ARMZ-3.15R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP3333ARMZ-3.15R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP3333ARMZ-3.15R7?
ADP3333ARMZ-3.15R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP3333ARMZ-3.15R7 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 ADP3333ARMZ-3.15R7?
For technical support, including ADP3333ARMZ-3.15R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP3333ARMZ-3.15R7 requirements.
6.How does Aetrix verify that ADP3333ARMZ-3.15R7 is sourced from the original manufacturer or authorized distributors?
All ADP3333ARMZ-3.15R7 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 ADP3333ARMZ-3.15R7 meets industry standards.
7.What is the process for return or replacement of ADP3333ARMZ-3.15R7?
All ADP3333ARMZ-3.15R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP3333ARMZ-3.15R7, 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 ADP3333ARMZ-3.15R7 part is unused and in its original packaging.
Return procedure for ADP3333ARMZ-3.15R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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