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Analog Devices Inc. LTC3336ACBZ-1-R7
- Part No.:
- LTC3336ACBZ-1-R7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 12-UFBGA, WLCSP
- Datasheet:
-
LTC3336ACBZ-1-R7.pdf
- Description:
- IC REG BUCK ADJ 250MA 12WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,990
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Product details
Overview
LTC3336ACBZ-1-R7 from Analog Devices is a nanopower hysteretic buck DC/DC converter delivering up to 250mA output from 2.5V–15V input, with 65nA quiescent current (VOUT < 2.4V, no load), pin-selectable 10mA/30mA peak input current, and 16 fixed output voltages (1.2V–5.0V). It targets primary battery-powered remote sensors and asset trackers where ultra-low IQ and programmable peak current are critical.
For engineers reviewing the LTC3336ACBZ-1-R7 datasheet, LTC3336ACBZ-1-R7 pinout, LTC3336ACBZ-1-R7 application, or LTC3336ACBZ-1-R7 equivalent, key selection criteria include its WLCSP package size (1.18mm × 1.62mm), sleep/wake thresholds per VOUT setting, PGOOD assertion logic, and IPEAK-dependent RDS(ON) of internal MOSFETs.
Technical Context
The LTC3336ACBZ-1-R7 implements a hysteretic control architecture with dual-MOSFET synchronous rectification (P-channel high-side, N-channel low-side), enabling discontinuous conduction mode operation and automatic transition into ultra-low-IQ sleep state when VOUT remains within ±0.3% hysteresis window. Sleep entry occurs after controlled inductor current ramp-down to zero.
It features integrated INTVCC generation referenced to VOUT (≥2.4V) or internal bandgap (＜2.4V), enabling VIN IQ reduction by bootstrapping internal circuitry. Pin-strapped OUT[3:0] configure one of 16 output voltages; IPK0/IPK1 (with IPK1 tied to GND in this variant) select 10mA or 30mA peak inductor current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5V to 15V - supports 1× to 3× LiSOCl₂, 3× to 8× AAA primary batteries without external regulation. |
| VIN Quiescent Current | 65nA (VOUT < 2.4V, no load) - enables multi-year operation on coin-cell or lithium-thionyl chloride batteries. |
| Peak Input Current | 10mA or 30mA (pin-selectable) - matches battery's maximum capacity point to avoid voltage sag and premature cutoff. |
| Output Voltage Options | 16 fixed values (1.2V–5.0V) - eliminates external feedback resistors and ensures stable, factory-trimmed regulation. |
| Max Output Current | 250mA at 300mA IPEAK setting - but LTC3336ACBZ-1-R7 supports only 10mA/30mA IPEAK, limiting deliverable load to 8.3mA/25mA respectively. |
| Package | 12-ball WLCSP (1.18mm × 1.62mm) - ultra-compact footprint for space-constrained IoT sensor nodes and wearables. |
| Operating Temp | –40°C to +125°C junction - qualified for industrial and automotive under-hood sensor applications. |
Pinout & Package
Package: 12-ball WLCSP (1.18mm × 1.62mm), MSL Level 1, –40°C to +125°C operating range. Exposed substrate serves as GND connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (B3) | Battery input supply | Accepts 2.5V–15V; requires ≥0.1μF ceramic bypass capacitor close to pin to suppress transients. |
| EN (A1) | Enable control input | Logic-high referenced to INTVCC; pulls VOUT to GND via 10kΩ resistor when low. |
| IPK0 (B2) | Peak current select bit | With IPK1 (tied to GND in this variant), selects 10mA (IPK0=GND) or 30mA (IPK0=INTVCC/VOUT) IPEAK. |
| INTVCC (B1) | Internal logic supply | Generated internally (≥2V or VOUT); powers EN/IPK inputs; requires ≥100nF external bypass in WLCSP. |
| PGOOD (C1) | Power-good status output | Open-drain, referenced to VOUT; asserts high when VOUT is within 90–95% of programmed value. |
| OUT3–OUT0 (D1–C2) | Output voltage programming bits | 4-bit static code (e.g., 0001 = 1.2V); tied to INTVCC/VOUT for '1', GND for '0' - sets regulation point without external components. |
| VOUT (C3) | Regulated output sense | Feedback node and logic reference for OUT[3:0] and PGOOD; also supplies INTVCC when ≥2.4V. |
| SW (A3) | Switch node | Connects to inductor; drives internal P/N-MOSFET pair; voltage swings between VIN and ~0V during operation. |
| GND (A2) | Ground reference | Exposed substrate ball; must be soldered to PCB thermal pad for electrical continuity and thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 65nA VIN IQ (VOUT < 2.4V, no load) extends primary battery life beyond 10 years in always-on sensor nodes. |
| Hysteretic sleep/wake control | ±0.3% regulation hysteresis window minimizes switching loss while maintaining tight output stability at microamp loads. |
| Programmable peak inductor current | 10mA/30mA selection prevents battery voltage collapse during burst-mode operation in low-capacity cells. |
| Integrated power-good indicator | PGOOD pin provides system-level reset or monitoring without external comparators or dividers. |
| Output-discharge on disable | 10kΩ internal pull-down on VOUT ensures rapid discharge when EN is deasserted - critical for safe power sequencing. |
Applications
| Remote Industrial Sensors | Asset Trackers |
|---|---|
Use Scenario: Battery-powered ultrasonic flow meter operating unattended for 5+ years in pipeline infrastructure. IC Role / Device Role / Timing Role: Primary buck regulator supplying 3.3V to MCU, RF transceiver, and analog front-end from 3.6V LiSOCl₂ cell. Use Value: 65nA IQ and 10mA IPEAK setting prevent battery voltage sag during measurement bursts, ensuring reliable long-term calibration stability. | Use Scenario: GPS-enabled cargo tracker deployed in shipping containers with limited battery volume and extreme temperature exposure. IC Role / Device Role / Timing Role: Power management IC delivering 2.8V to GNSS receiver and BLE SoC from two-series AAA alkaline cells. Use Value: WLCSP package (1.18mm × 1.62mm) enables minimal PCB area; –40°C to +125°C rating ensures operation across global logistics environments. |
| Electronic Door Locks | SmartMesh® Sensor Nodes |
Use Scenario: Wireless smart lock using solenoid actuator triggered by BLE command, requiring instant wake-up and high peak current capability. IC Role / Device Role / Timing Role: Nanopower buck supplying 5.0V to solenoid driver and 1.8V to secure MCU from single 3.6V primary cell. Use Value: Pin-strapped dual-output configuration (via OUT[3:0]) eliminates external regulators, reducing BOM count and board space. | Use Scenario: Self-organizing wireless sensor network node powered by energy harvesting or long-life primary battery. IC Role / Device Role / Timing Role: Efficient step-down converter powering IEEE 802.15.4 transceiver and microcontroller from 3.0V or 3.6V source. Use Value: Sleep-state IQ of 65nA allows >10-year runtime on 2400mAh LiSOCl₂; PGOOD signal synchronizes radio wake-up with stable VOUT. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nanopower buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62840DRVR | 60nA IQ, 2.7V–6.5V input, fixed 1.8V/3.3V outputs only; no pin-selectable IPEAK; 1.5mm × 2.0mm DSBGA package. | Lacks programmable output voltage and peak current - suitable only for fixed-VOUT designs with tighter input range. | Select when VOUT is fixed and input stays within 2.7V–6.5V; not viable for 15V input or multi-voltage systems. |
| MAX17643ATB+ | 1.2μA IQ (higher than LTC3336ACBZ-1-R7), 4.5V–60V input, adjustable VOUT via resistor divider; 2mm × 2mm TDFN. | Higher IQ and wider input range suit industrial 24V rail applications, but lacks nanopower sleep mode for battery longevity. | Prefer for wide-input industrial supplies where efficiency at medium loads matters more than multi-year battery life. |
Compared with TPS62840DRVR and MAX17643ATB+, the LTC3336ACBZ-1-R7 uniquely combines sub-100nA IQ, 15V max input, 16-pin-programmable VOUT, and dual IPEAK selection - making it the only choice for ultra-long-life, multi-battery-format, and multi-rail primary-powered systems.
Availability
LTC3336ACBZ-1-R7 is available at Aetrix Electronics and suitable for remote industrial sensors, asset trackers, and electronic door locks requiring stable component supply with guaranteed long-term manufacturability and lifecycle support.
Supply support for LTC3336ACBZ-1-R7 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, serving industrial, automotive, communications, and healthcare markets.
The LTC3336 product line delivers nanopower DC/DC conversion for primary battery-powered IoT edge devices, emphasizing ultra-low quiescent current, programmable peak current, and compact packaging for space- and energy-constrained applications.
FAQ
What is the maximum input voltage supported by the LTC3336ACBZ-1-R7?
The LTC3336ACBZ-1-R7 supports an absolute maximum input voltage of 16.5V, with recommended operating range from 2.5V to 15V. This allows direct interfacing with common primary battery configurations including 3× to 8× AAA (4.5V–12V) and single LiSOCl₂ cells (3.6V) or stacked configurations up to 15V, without external pre-regulation.
How does the LTC3336ACBZ-1-R7 achieve its 65nA quiescent current?
The LTC3336ACBZ-1-R7 achieves 65nA VIN quiescent current through a combination of deep-sleep hysteresis control, optimized internal biasing, and bootstrapped INTVCC generation when VOUT ≥ 2.4V. In sleep mode, switching ceases entirely and only the precision sleep comparator and reference remain active - minimizing current draw while retaining fast wake-up capability.
Which output voltage settings are available on the LTC3336ACBZ-1-R7?
The LTC3336ACBZ-1-R7 supports all 16 output voltages listed in Table 2 of the datasheet: 1.2V, 1.5V, 1.6V, 1.8V, 2.0V, 2.4V, 2.5V, 2.8V, 3.0V, 3.2V, 3.3V, 3.6V, 3.7V, 4.1V, 4.2V, and 5.0V. These are selected via static logic states on OUT3–OUT0 pins, with no external components required for regulation.
Can the LTC3336ACBZ-1-R7 be used with a 15V input and 3.3V output?
Yes, the LTC3336ACBZ-1-R7 supports 15V input and 3.3V output simultaneously. At 15V VIN, the device operates in hysteretic burst mode with appropriate inductor sizing (e.g., 47µH for 300mA IPEAK); however, LTC3336ACBZ-1-R7 is limited to 10mA/30mA IPEAK, so inductor value must be increased (e.g., 560µH–1000µH) to maintain stable regulation at 3.3V/25mA load.
What is the function of the PGOOD pin on the LTC3336ACBZ-1-R7?
PGOOD on the LTC3336ACBZ-1-R7 is an open-drain output referenced to VOUT that asserts high when the regulated output is within 90–95% of the programmed voltage. It provides system-level power-good signaling for MCU reset supervision or sequenced enablement of downstream circuitry, eliminating need for external voltage monitors.
LTC3336ACBZ-1-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 12-UFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5V
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- 5V
- Current - Output:
- 250mA
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-WLCSP (1.18x1.62)
LTC3336ACBZ-1-R7 FAQ
1.How can I place an order for LTC3336ACBZ-1-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC3336ACBZ-1-R7 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 LTC3336ACBZ-1-R7 reliable?
The price and inventory of LTC3336ACBZ-1-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC3336ACBZ-1-R7 is usually 5 days.
3.What payment methods are accepted for LTC3336ACBZ-1-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC3336ACBZ-1-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC3336ACBZ-1-R7?
LTC3336ACBZ-1-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC3336ACBZ-1-R7 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 LTC3336ACBZ-1-R7?
For technical support, including LTC3336ACBZ-1-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC3336ACBZ-1-R7 requirements.
6.How does Aetrix verify that LTC3336ACBZ-1-R7 is sourced from the original manufacturer or authorized distributors?
All LTC3336ACBZ-1-R7 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 LTC3336ACBZ-1-R7 meets industry standards.
7.What is the process for return or replacement of LTC3336ACBZ-1-R7?
All LTC3336ACBZ-1-R7 units undergo pre-shipment inspection (PSI). If there is an issue with LTC3336ACBZ-1-R7, 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 LTC3336ACBZ-1-R7 part is unused and in its original packaging.
Return procedure for LTC3336ACBZ-1-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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