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Analog Devices Inc. LTM8052AMPV#PBF
- Part No.:
- LTM8052AMPV#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- DC DC Converters
- Package:
- 81-BLGA Module
- Datasheet:
-
LTM8052AMPV#PBF.pdf
- Description:
- DC DC CONVERTER 1.2-24V 120W
- Quantity:
- Payment:
- Shipping:
Inventory:4,955
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Product details
Overview
LTM8052AMPV#PBF from Analog Devices (formerly Linear Technology) is a 36V input, ±5A, 2-quadrant constant-voltage/constant-current µModule regulator in LGA package. It sources and sinks output current to maintain regulation across ±1.2V to ±24V output range, supports programmable current limiting via CTL_I/CTL_T pins, and operates from 6V–36V input with forced continuous conduction mode. It is used in Peltier drivers, battery testers, and cell balancing circuits where bidirectional power flow is required.
For engineers reviewing the LTM8052AMPV#PBF datasheet, LTM8052AMPV#PBF pinout, LTM8052AMPV#PBF application, or LTM8052AMPV#PBF equivalent, key selection considerations include its –55°C to 125°C extended temperature grade, 11.25mm × 15mm × 2.82mm LGA footprint, 2-quadrant CVCC operation, and absence of output overvoltage protection (distinguishing it from LTM8052).
Technical Context
The LTM8052AMPV#PBF implements fixed-frequency average current-mode control with internal inductor and integrated power switches. Its dual analog control inputs (CTL_I and CTL_T) independently set positive/negative current limits up to +5.6A/–7.7A at 1.5V, with the lower voltage determining final limit. It maintains regulation even at zero load via forced continuous mode.
Unlike LTM8052, the LTM8052AMPV#PBF variant lacks 125% output overvoltage protection and is specified for current-regulation–dominant applications. Its thermal shutdown activates above 125°C junction temperature, and switching frequency is set by RT pin resistor (100kHz–1MHz) or synchronized externally via SYNC pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 6V to 36V - supports wide industrial and automotive supply rails without external pre-regulation |
| Output Voltage Range | ±1.2V to ±24V - programmable via single ADJ-resistor, enabling bipolar or unipolar regulated outputs |
| Output Current Capability | ±5A continuous - sources +5A and sinks –5A while maintaining voltage regulation |
| Current Limit Control | 0V–1.5V on CTL_I/CTL_T - sets symmetric or asymmetric positive/negative current limits with 1.5µA input bias |
| Switching Frequency | 100kHz–1MHz - adjustable via RT resistor or external SYNC clock for EMI control and layout optimization |
| Operating Temperature | –55°C to 125°C - qualified for extended-temperature industrial and aerospace applications |
| Package Dimensions | 11.25mm × 15mm × 2.82mm LGA - compact surface-mount footprint with bottom-side thermal pad for high-power density |
Pinout & Package
Package: 81-lead LGA (11.25mm × 15mm × 2.82mm), RoHS-compliant gold pad finish (e4), MSL Level 3, –55°C to 125°C operating range.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Bank 3) | Power Input | Supplies internal regulator and power switches; requires local low-ESR bypass capacitor (≥330µF recommended) |
| VOUT (Bank 1) | Power Output | Delivers regulated bidirectional current; connects to output filter cap and load; reverse current flows back to VIN bus |
| GND (Bank 2) | Ground Reference | Primary thermal path and return for feedback divider (RADJ); must connect to solid local ground plane |
| CTL_I (D8) | Current Limit Control | Analog input (0–1.5V) setting max output current; tied to VREF if unused |
| CTL_T (D8) | Temperature-Based Current Limit | Analog input (0–1.5V) for thermistor-based derating; lower of CTL_I/CTL_T determines final limit |
| ADJ (K8) | Output Voltage Programming | Regulated to 1.19V; RADJ = (11.9/(VOUT – 1.19)) kΩ sets output voltage |
| RT (G8) | Frequency Setting | Resistor-to-ground sets switching frequency (100kHz–1MHz); open circuit not allowed |
| RUN (L6) | Enable / UVLO Input | Active-high enable with 1.55V threshold and 160mV hysteresis; sinks 5.5µA when disabled |
| SYNC (L7) | External Clock Sync | Accepts external clock; RT resistor must be 20% lower than sync frequency; tie to GND if unused |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 2-Quadrant Regulation | Simultaneously sources +5A and sinks –5A while maintaining precise voltage regulation-enables active load control in Peltier and battery test systems |
| Programmable Bidirectional Current Limits | Independent positive/negative current limits set via two analog inputs (CTL_I/CTL_T), allowing asymmetric derating for thermal or safety margins |
| Forced Continuous Conduction Mode | Eliminates discontinuous switching at light loads-critical for stable synchronization and low-noise operation in precision instrumentation |
| Extended Temperature Grade (–55°C to 125°C) | Validated performance across extreme environments-supports aerospace, downhole, and military applications without derating |
| Complete µModule Integration | Includes controller, MOSFETs, inductor, and compensation-reduces design cycle time and eliminates layout-sensitive magnetics selection |
Applications
| Peltier Thermal Control | Battery Cell Balancing |
|---|---|
Use Scenario: Driving thermoelectric coolers (TECs) requiring rapid polarity reversal and precise current control to maintain temperature setpoints within ±0.1°C. IC Role / Device Role / Timing Role: 2-quadrant CVCC regulator sourcing/sinking up to ±5A while regulating output voltage to match TEC impedance across temperature gradients. Use Value: Eliminates need for H-bridge + separate current sense + control loop-reduces BOM count by >7 components and PCB area by 40%. | Use Scenario: Equalizing charge/discharge current between lithium-ion cells during pack formation or aging tests, where bidirectional energy transfer is mandatory. IC Role / Device Role / Timing Role: Acts as programmable current sink/source per cell, using CTL_I to enforce ±5A limits and ADJ to set cell voltage targets (e.g., 4.2V ±10mV). Use Value: Enables true active balancing with <1% current matching error across channels-improves pack lifetime by 18% vs passive methods. |
| Battery Testing & Simulation | High-Power LED Driver |
Use Scenario: Simulating battery discharge/charge profiles in EV battery module testers, requiring dynamic load switching between sourcing and sinking modes. IC Role / Device Role / Timing Role: Functions as programmable electronic load and source, responding to real-time commands via CTL_I voltage to adjust current setpoint within 10µs. Use Value: Replaces dual-quadrant bench supplies-cuts system cost by 65% and enables 16-channel parallel testing in 1U rack space. | Use Scenario: Driving high-brightness LEDs in architectural lighting where dimming requires precise current regulation and reverse-current capability for dynamic braking. IC Role / Device Role / Timing Role: Regulates LED current up to 5A while sinking reverse current during PWM off-cycles to prevent voltage overshoot and ensure flicker-free dimming. Use Value: Prevents LED stress from inductive kickback-extends lumen maintenance to >50,000 hours at full brightness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 2-quadrant CVCC regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTM8052MPV#PBF | Includes 125% output overvoltage protection; same –55°C to 125°C grade and LGA package | Better suited for voltage-regulation–critical applications where output overvoltage must be actively clamped | Select LTM8052MPV#PBF if OVP is required; otherwise LTM8052AMPV#PBF offers tighter current regulation focus |
| LTM8052AEY#PBF | BGA package (11.25mm × 15mm × 3.42mm), SAC305 RoHS finish, same –40°C to 125°C grade | Preferred for high-vibration environments where LGA solder joint reliability is a concern | Choose LTM8052AEY#PBF for aerospace or transportation applications requiring BGA mechanical robustness |
Compared with LTM8052MPV#PBF, LTM8052AMPV#PBF trades overvoltage protection for optimized current-loop response; versus LTM8052AEY#PBF, it offers identical functionality in a smaller, lower-profile LGA package better suited for space-constrained industrial modules.
Availability
LTM8052AMPV#PBF is available at Aetrix Electronics and suitable for Peltier thermal control, battery cell balancing, and high-power LED driver applications requiring stable component supply with extended temperature support and RoHS compliance.
Supply support for LTM8052AMPV#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 acquired Linear Technology in 2017 and continues to develop and support the µModule family of integrated power solutions.
The LTM8052AMPV#PBF belongs to the µModule regulator product line, designed specifically for space-constrained, high-reliability power conversion where integration, thermal performance, and bidirectional current control are critical.
FAQ
What is the key functional difference between LTM8052AMPV#PBF and LTM8052MPV#PBF?
The LTM8052AMPV#PBF omits the 125% output overvoltage protection present in LTM8052MPV#PBF, making it optimized for current-regulation–dominant applications like battery testing. Both share identical –55°C to 125°C temperature rating, LGA package, and 2-quadrant CVCC architecture. LTM8052AMPV#PBF prioritizes fast current-loop response and thermal stability over voltage fault protection.
Does LTM8052AMPV#PBF support negative output voltages?
Yes, LTM8052AMPV#PBF supports output voltages from –24V to –1.2V using the same ADJ-resistor configuration as positive outputs. Its 2-quadrant architecture allows it to source current into a negative-rail load or sink current from a negative-rail source, enabling true bipolar operation without external polarity-reversal circuitry.
How is the output current limit set on LTM8052AMPV#PBF?
The LTM8052AMPV#PBF uses two independent analog inputs-CTL_I and CTL_T-to set maximum output current. Each accepts 0V–1.5V; the lower voltage determines the final limit. For example, applying 1.0V to CTL_I and 0.75V to CTL_T results in a limit defined by 0.75V (≈+2.8A/–4.9A). The LTM8052AMPV#PBF datasheet provides exact curves mapping voltage to current.
Can LTM8052AMPV#PBF operate with input voltage below 6V?
No, LTM8052AMPV#PBF requires minimum 6V input to start and sustain regulation. Below 6V, internal bias rails fail to activate, and the RUN pin will not enable switching. Absolute maximum input is 40V, but continuous operation above 36V violates specifications and risks damage. Input undervoltage lockout is implemented via the RUN pin's 1.55V threshold.
What thermal management is required for LTM8052AMPV#PBF at full ±5A load?
At ±5A with 12V input and 5V output, LTM8052AMPV#PBF dissipates ~3.5W. Its θJC(bottom) = 5.4°C/W requires a 4-layer PCB with ≥4 cm² exposed copper under the thermal pad and ≥2 thermal vias per mm². Without this, junction temperature exceeds 125°C within 60 seconds. The LTM8052AMPV#PBF thermal shutdown activates above 125°C but is not intended for continuous use.
LTM8052AMPV#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- µModule®
- Package/Case:
- 81-BLGA Module
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 6V
- Voltage - Input (Max):
- 36V
- Voltage - Output 1:
- 1.2 ~ 24V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 5A
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- OTP, OVP, UVLO
- Operating Temperature:
- -55°C ~ 125°C
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 81-LGA (15x11.25)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
LTM8052AMPV#PBF FAQ
1.How can I place an order for LTM8052AMPV#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTM8052AMPV#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 LTM8052AMPV#PBF reliable?
The price and inventory of LTM8052AMPV#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTM8052AMPV#PBF is usually 5 days.
3.What payment methods are accepted for LTM8052AMPV#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTM8052AMPV#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTM8052AMPV#PBF?
LTM8052AMPV#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTM8052AMPV#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 LTM8052AMPV#PBF?
For technical support, including LTM8052AMPV#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTM8052AMPV#PBF requirements.
6.How does Aetrix verify that LTM8052AMPV#PBF is sourced from the original manufacturer or authorized distributors?
All LTM8052AMPV#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 LTM8052AMPV#PBF meets industry standards.
7.What is the process for return or replacement of LTM8052AMPV#PBF?
All LTM8052AMPV#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTM8052AMPV#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 LTM8052AMPV#PBF part is unused and in its original packaging.
Return procedure for LTM8052AMPV#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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