My Inquiry
My Account
Analog Devices Inc. LT8337JV#PBF
- Part No.:
- LT8337JV#PBF
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-TFQFN Exposed Pad
- Datasheet:
-
LT8337JV#PBF.pdf
- Description:
- IC REG BOOST PROG 5A 16LQFN
- Quantity:
- Payment:
- Shipping:
Inventory:751
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LT8337JV#PBF from Analog Devices is a low-quiescent-current, synchronous step-up DC/DC converter with Silent Switcher architecture and PassThru™ mode. It integrates 28V/5A power switches, operates from 2.7V to 28V input, delivers up to 26V output, and supports programmable switching frequency from 300kHz to 3MHz. It is used in battery-powered systems requiring high efficiency and ultralow EMI, such as portable medical monitors and industrial handhelds.
For engineers reviewing the LT8337JV#PBF datasheet, LT8337JV#PBF pinout, LT8337JV#PBF application, or LT8337JV#PBF equivalent, key selection criteria include its 4µA Burst Mode quiescent current, 100% duty-cycle PassThru capability, integrated 28V/5A MOSFETs, SSFM-enabled CISPR Class 5 EMI compliance, and J-grade (–40°C to +150°C) automotive-qualified thermal rating.
Technical Context
The LT8337JV#PBF implements fixed-frequency current-mode control with internal slope compensation and dual 28V/5A synchronous power switches. Its operation includes automatic transition into PassThru mode when VIN exceeds VOUT, where the bottom switch remains fully on and top switch off-enabling near-zero dropout regulation without external components.
It features programmable soft-start via RT pin, output overvoltage lockout, and a dedicated PG (power good) flag for system monitoring. The SYNC/MODE pin selects among five operating modes-including Burst Mode (4µA IQ), Pulse-Skipping, and SSFM-while maintaining synchronization capability up to 3MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 28V - supports single-cell Li-ion up to 24V industrial rails without pre-regulation. |
| Output Voltage Range | Up to 26V - programmable via FB resistor divider; enables direct 12V/15V/19V rail generation. |
| Switching Frequency | 300kHz–3MHz - adjustable with single RT resistor; higher frequencies allow smaller magnetics and faster transient response. |
| VIN Quiescent Current | 4µA in Burst Mode - extends battery runtime in always-on sensor nodes and IoT endpoints. |
| PassThru Threshold | VIN – VOUT ≤ 0V (rising), ≤ –0.6V (falling) - enables seamless bypass during input voltage surges or battery recovery. |
| Thermal Rating | J-grade: –40°C to +150°C junction - qualified for under-hood automotive and high-temp industrial environments. |
| EMI Performance | CISPR 25 Class 5 compliant with SSFM enabled - eliminates need for external EMI filters in automotive infotainment designs. |
Pinout & Package
LT8337JV#PBF is housed in a thermally enhanced 16-lead (3mm × 3mm) LQFN package with exposed GND pad (Pin 17), optimized for high-power density and low θJCbottom (8.2°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SYNC/MODE (1) | Mode selection & sync input | Selects Burst/Pulse-Skipping/SSFM/Sync modes; ignored during PassThru or startup. |
| RT (2) | Frequency programming | Resistor-to-GND sets fSW from 300kHz–3MHz; open-circuit not allowed. |
| GND (3,5,8,17) | Power & signal ground | Exposed pad (17) must be soldered to PCB ground plane for thermal and EMI performance. |
| FB (4) | Feedback sensing | Monitors output via resistor divider; regulates VOUT to 1.000V ±1.2% (J-grade). |
| VOUT (6,7) | Output power terminals | Dual pins reduce IR drop and enable Silent Switcher capacitor pairing (1µF each to adjacent GND pins). |
| SW (9,10,11) | Switch node outputs | Internally connected; tie together to inductor and BST capacitor; carries full switching current. |
| BST (12) | Bootstrap supply | 0.1µF ceramic cap between BST–SW supplies top gate driver; critical for 28V operation. |
| VIN (13) | Main input supply | Accepts 2.7V–28V; powers INTVCC LDO and internal logic; source of 0.3µA shutdown current. |
| EN/UVLO (14) | Enable & undervoltage lockout | 1.0V rising threshold with 90mV hysteresis; enables VIN-programmable turn-on/off via resistor divider. |
| INTVCC (15) | Internal 3.5V regulator bypass | Requires ≥1µF low-ESR ceramic cap; powers gate drivers; no external loading permitted. |
| PG (16) | Power good indicator | Open-drain flag pulled low if VOUT deviates >±8%, EN/UVLO <1V, INTVCC fault, or thermal shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| Silent Switcher architecture | Dual VOUT/GND capacitor layout minimizes high-di/dt loop area, reducing radiated EMI by >30dB vs conventional boost converters. |
| PassThru™ mode | 100% duty cycle operation with synchronous MOSFET fully on enables VIN-to-VOUT conduction with <100mV dropout at 5A. |
| Low-IQ Burst Mode | 4µA VIN quiescent current at light load preserves battery life in standby while maintaining regulated output. |
| Spread Spectrum FM (SSFM) | ±0.45% modulation depth over 20% bandwidth spreads EMI peaks, easing CISPR 25 Class 5 certification. |
| Integrated 28V/5A switches | Eliminates external MOSFETs and drivers; reduces BOM count and layout complexity for compact 3mm × 3mm designs. |
Applications
| Portable Medical Monitors | Automotive ADAS Cameras |
|---|---|
Use Scenario: Powering 12V image sensors and FPGAs from a 7.2V LiFePO₄ battery in compact endoscopic units. IC Role / Device Role / Timing Role: Primary step-up regulator with PassThru mode enabling seamless transition during battery voltage sag or recharge. Use Value: 4µA Burst Mode IQ extends battery life beyond 72 hours; CISPR-compliant EMI ensures clean video signal integrity. |
Use Scenario: Generating stable 12V rail for CMOS image sensors in rear-view cameras mounted near engine compartments. IC Role / Device Role / Timing Role: High-temp DC/DC converter delivering regulated output across –40°C to +150°C ambient. Use Value: J-grade thermal rating avoids derating; Silent Switcher layout meets OEM EMI limits without shielding cans. |
| Industrial Handheld Scanners | Smart Building Sensors |
Use Scenario: Boosting 3.7V Li-ion to 5V/12V for laser diodes, decoders, and BLE radios in warehouse scanners. IC Role / Device Role / Timing Role: Single-chip solution providing both main rail and auxiliary bias with minimal footprint. Use Value: Dual VOUT pins simplify parallel capacitor placement; 3MHz max fSW allows use of sub-2.2µH inductors for ultra-thin form factors. |
Use Scenario: Powering LoRaWAN transceivers and environmental sensors from coin-cell or energy-harvested sources. IC Role / Device Role / Timing Role: Ultra-low-IQ boost converter enabling multi-year battery life in maintenance-free deployments. Use Value: 0.3µA shutdown current and programmable UVLO prevent deep discharge; PG flag enables host MCU sleep/wake coordination. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-up converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT8337EV#PBF | E-grade (–40°C to +125°C); identical electrical specs and pinout. | Targeted at commercial/industrial applications without extended temperature requirements. | Select when ambient operating temperature stays below 125°C and cost sensitivity outweighs J-grade reliability margin. |
| LT8337-1JV#PBF | Replaces PG pin with VC pin for external loop compensation; same J-grade rating and thermal specs. | Required for designs needing fast transient response under dynamic load steps (e.g., radar pulse loads). | Choose when output stability under rapid load changes is critical and external compensation is preferred over fixed internal loop. |
Compared with LT8337JV#PBF, LT8337EV#PBF offers identical functionality at lower temperature grade and cost, while LT8337-1JV#PBF trades power-good monitoring for design flexibility in loop dynamics-making the original ideal for space-constrained, high-temp systems requiring built-in output health monitoring.
Availability
LT8337JV#PBF is available at Aetrix Electronics and suitable for automotive camera modules, portable medical devices, and industrial handheld scanners requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for LT8337JV#PBF 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, and automotive markets.
The LT8337 family was designed specifically for high-efficiency, low-EMI boost conversion in thermally demanding and noise-sensitive applications-emphasizing Silent Switcher integration, wide VIN range, and robust PassThru operation.
FAQ
What is the maximum output voltage supported by the LT8337JV#PBF?
The LT8337JV#PBF supports an output voltage up to 26V, set by the feedback resistor divider network connected to the FB pin. Its internal reference is 1.000V ±1.2% over the full –40°C to +150°C junction temperature range, ensuring stable regulation even in high-temp automotive or industrial environments. This makes the LT8337JV#PBF suitable for generating standard 12V, 15V, or 19V rails directly from low-input sources.
How does PassThru mode operate in the LT8337JV#PBF?
In PassThru mode, the LT8337JV#PBF disables the top switch and fully turns on the bottom synchronous MOSFET when VIN rises above VOUT, effectively shorting input to output through the inductor and MOSFET. This occurs at VIN – VOUT ≤ 0V (rising edge) and provides near-zero dropout regulation without external components. The LT8337JV#PBF draws only 15µA in this state, preserving efficiency during battery recovery or input voltage surges.
What are the key differences between LT8337JV#PBF and LT8337-1JV#PBF?
The LT8337JV#PBF includes a power-good (PG) flag on Pin 16 for system monitoring, while the LT8337-1JV#PBF replaces PG with a VC pin for external loop compensation. Both share identical J-grade temperature rating (–40°C to +150°C), 28V/5A switches, and Silent Switcher architecture. The LT8337JV#PBF is optimal for designs requiring output health indication; the -1 variant suits applications needing custom transient response tuning.
Does the LT8337JV#PBF require external compensation components?
No, the LT8337JV#PBF uses internal compensation and does not require external RC networks on the VC pin-unlike the LT8337-1 variant. Its control loop is factory-optimized for stability across the full operating range. Users only need to connect the FB resistor divider, RT programming resistor, BST capacitor, and proper input/output capacitance per the datasheet layout guidelines to ensure reliable operation.
Can the LT8337JV#PBF synchronize to an external clock?
Yes, the LT8337JV#PBF supports external clock synchronization via the SYNC/MODE pin (Pin 1). When an external clock signal within 300kHz–3MHz is applied, the device locks its switching frequency and phase to that clock while operating in Pulse-Skipping mode. This capability enables EMI reduction in multi-rail systems and deterministic timing in synchronized power architectures-critical for automotive domain controllers and industrial PLCs.
LT8337JV#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- Silent Switcher®1
- Package/Case:
- 16-TFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Programmable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 28V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 26V
- Current - Output:
- 5A
- Frequency - Switching:
- 300kHz ~ 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-LQFN (3x3)
LT8337JV#PBF FAQ
1.How can I place an order for LT8337JV#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT8337JV#PBF 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 LT8337JV#PBF reliable?
The price and inventory of LT8337JV#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT8337JV#PBF is usually 5 days.
3.What payment methods are accepted for LT8337JV#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT8337JV#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT8337JV#PBF?
LT8337JV#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT8337JV#PBF 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 LT8337JV#PBF?
For technical support, including LT8337JV#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT8337JV#PBF requirements.
6.How does Aetrix verify that LT8337JV#PBF is sourced from the original manufacturer or authorized distributors?
All LT8337JV#PBF 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 LT8337JV#PBF meets industry standards.
7.What is the process for return or replacement of LT8337JV#PBF?
All LT8337JV#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT8337JV#PBF, 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 LT8337JV#PBF part is unused and in its original packaging.
Return procedure for LT8337JV#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LT8337JV#PBF Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
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…
