My Inquiry
My Account
Analog Devices Inc. LTM4622AIY#PBF
- Part No.:
- LTM4622AIY#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- DC DC Converters
- Package:
- 25-PowerBBGA Module
- Datasheet:
-
LTM4622AIY#PBF.pdf
- Description:
- DC DC CONVERTER 1.5-12V 1.5-12V
- Quantity:
- Payment:
- Shipping:
Inventory:1,492
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTM4622AIY#PBF from Analog Devices is a dual-output ultrathin µModule DC/DC regulator delivering 2A per channel (3A peak) or 4A single-channel operation, with 1.5V–12V programmable output voltage, 3.6V–20V input range, and integrated inductor, FETs, controller, and support components in a 6.25mm × 6.25mm × 2.42mm BGA package-designed for space-constrained point-of-load conversion in telecom and industrial systems.
For engineers reviewing the LTM4622AIY#PBF datasheet, LTM4622AIY#PBF pinout, LTM4622AIY#PBF application, or LTM4622AIY#PBF equivalent, key selection considerations include its dual-channel valley current mode control, ±1.5% total output regulation error over line/load/temperature, selectable Burst Mode® vs forced continuous mode, external frequency sync capability, and RoHS-compliant SAC305 BGA finish.
Technical Context
The LTM4622AIY#PBF implements an integrated valley current mode control architecture with internal 0.6V reference, enabling fast transient response and inherent current sharing in multiphase configurations. Its dual independent channels operate 180° out of phase by default, supporting interleaved operation without external clocking.
Each channel features programmable soft-start via TRACK/SS pin (1.2µA internal pull-up), precise output tracking, open-drain PGOOD monitoring with ±8% trip threshold, and robust fault protection including input overvoltage shutdown at 22.5V, overtemperature cutoff, and cycle-by-cycle current limiting based on COMP pin voltage (0.3V–1.8V range).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 3.6V to 20V - supports wide-input industrial and telecom rails without pre-regulation. |
| VOUT Range | 1.5V to 12V - set per channel via single external resistor (e.g., 40.2kΩ for 3.3V), enabling flexible rail generation. |
| IOUT (per channel) | Dual 2A continuous / 3A peak - sufficient for FPGA core, ASIC I/O, or DSP supply domains with margin. |
| Regulation Accuracy | ±1.5% total error over load, line, and temperature - ensures stable logic-level compliance across operating conditions. |
| Switching Frequency | 1MHz default; adjustable 800kHz–4MHz via FREQ pin - allows ripple/noise optimization (e.g., 1.5MHz for ≥5V outputs). |
| Package Dimensions | 6.25mm × 6.25mm × 2.42mm BGA - ultrathin footprint fits under low-profile heat sinks or stacked PCB assemblies. |
| Thermal Resistance | θJCbottom = 11°C/W - enables high-power density operation with bottom-side thermal pad attachment. |
Pinout & Package
Package: 25-lead BGA, 6.25mm × 6.25mm × 2.42mm, RoHS-compliant SAC305 solder finish, MSL Level 4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN1, VIN2 (A2, B3, D3, E2) | Power Input Terminals | VIN1 powers internal control circuitry; both must be connected to same input rail ≥3.6V for dual-channel operation. |
| VOUT1, VOUT2 (A1, B1, D1, E1) | Power Output Terminals | Each pair delivers regulated output; requires local ceramic decoupling (≥47µF) directly to adjacent GND pins. |
| FB1, FB2 (A4, E4) | Error Amplifier Inverting Input | Internally biased with 60.4kΩ resistor to VOUT; external RFB to GND sets output voltage per channel. |
| TRACK/SS1, TRACK/SS2 (A3, E3) | Soft-Start & Tracking Control | 1.2µA internal pull-up enables capacitor-programmed soft-start; voltage <0.6V forces output tracking to external source. |
| PGOOD1, PGOOD2 (B4, D4) | Open-Drain Power-Good Indicator | Pulled low when FB voltage deviates >±8% from 0.6V reference-used for power sequencing and fault signaling. |
| RUN1, RUN2 (B2, D2) | Channel Enable Control | Logic-high (>1.27V) enables channel; <1.0V disables it-supports independent channel power gating. |
| SYNC/MODE (C5) | Mode Select & Clock Input | Tied to GND = forced continuous mode; to INTVCC = Burst Mode®; driven by external clock = synchronized operation. |
| FREQ (C4) | Frequency Adjustment Terminal | Resistor to GND increases fSW (up to 4MHz); resistor to INTVCC decreases fSW (down to 800kHz). |
| INTVCC (C3) | Internal 3.3V Regulator Output | Powers internal drivers and logic; internally decoupled-no external capacitor required. |
| GND (A5, B5, C1, C2, D5) | Power Ground Reference | Common return for input, output, and control circuits-must be low-impedance plane with multiple vias. |
| COMP1, COMP2 (A5, E5) | Current Sense Threshold Node | Voltage sets current comparator trip point (0.3V–1.8V); tie together for parallel operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel valley current mode control | Enables inherent current sharing and stable operation with all-ceramic output capacitors-no external compensation needed. |
| Integrated inductor + MOSFETs + controller | Reduces bill-of-materials to only input/output ceramics-eliminates layout sensitivity and magnetics selection effort. |
| Selectably configurable operating mode | Burst Mode® (light-load efficiency), forced continuous (low ripple), or externally synchronized (EMI reduction)-set via SYNC/MODE pin. |
| Programmable soft-start & output tracking | Capacitor on TRACK/SS pin controls ramp rate; supports precise power-rail sequencing for multi-voltage SoCs and FPGAs. |
| Comprehensive fault protection | Input overvoltage shutdown (22.5V), overtemperature cutoff, output overcurrent limit (3A–4A), and PGOOD monitoring-ensures system reliability. |
Applications
| Telecom Baseband Processing | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Powering FPGA fabric and transceiver banks in 4G/5G remote radio units requiring tight voltage tolerance and rapid load transients. IC Role / Device Role / Timing Role: Dual-output point-of-load regulator supplying 1.2V core and 3.3V I/O rails with independent soft-start and tracking. Use Value: ±1.5% regulation accuracy and 20µs dynamic settling time maintain signal integrity during burst traffic loads. | Use Scenario: Generating isolated 5V and 24V auxiliary rails in programmable logic controller backplanes with limited board area. IC Role / Device Role / Timing Role: Compact dual-channel DC/DC converter replacing discrete buck controllers and external inductors. Use Value: 6.25mm × 6.25mm footprint saves >70% board space versus discrete solutions while maintaining 95% peak efficiency. |
| Medical Imaging Sensor Arrays | Test & Measurement Equipment |
Use Scenario: Supplying low-noise analog front-end ADCs and digital processing cores in portable ultrasound scanners. IC Role / Device Role / Timing Role: Dual-output regulator with selectable Burst Mode® to minimize standby power and forced continuous mode for clean analog supplies. Use Value: 5mV output ripple (1.5V @ 2A) and 100mV peak deviation under 1A dynamic load ensure SNR preservation in sensitive acquisition paths. | Use Scenario: Providing tightly regulated 1.8V and 5V rails for high-speed logic analyzers and protocol testers with strict EMI limits. IC Role / Device Role / Timing Role: Synchronized dual-channel µModule enabling spread-spectrum-like noise reduction via external clock injection. Use Value: ±30% frequency sync range allows alignment to system master clock-reducing beat frequencies and conducted emissions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTM4622AEY#PBF | Identical electrical specs and pinout; differs only in RoHS-compliant SAC305 BGA finish vs LTM4622AIY#PBF's SAC305 finish-same MSL rating and thermal performance. | No functional difference; selected where identical assembly process compatibility with existing SAC305-reflow profiles is required. | Direct drop-in replacement if BGA finish consistency across production lots is critical. |
| LTM4622IV#PBF | LGA package (6.25mm × 6.25mm × 1.82mm) instead of BGA; identical electrical behavior but different thermal path (θJCtop = 17°C/W) and mounting requirements. | Suitable for designs prioritizing lower profile height (<1.82mm) and top-side cooling, but requires LGA reflow profile and land pattern revision. | Choose when mechanical constraints favor LGA over BGA-requires PCB redesign but offers identical regulation and feature set. |
Compared with LTM4622AIY#PBF, the LTM4622AEY#PBF offers identical functionality in the same BGA package with matching finish, while the LTM4622IV#PBF provides equivalent regulation and control in a thinner LGA variant-enabling thermal or height-driven trade-offs without sacrificing performance or feature coverage.
Availability
LTM4622AIY#PBF is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and medical diagnostic equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for LTM4622AIY#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, communications, and industrial markets since 1965.
The LTM4622AIY#PBF belongs to the µModule regulator product line-engineered to integrate power train components into compact, thermally optimized packages for demanding point-of-load applications where size, efficiency, and reliability are critical.
FAQ
What is the maximum input voltage the LTM4622AIY#PBF can withstand?
The LTM4622AIY#PBF has an absolute maximum input voltage rating of 22V on VIN1 and VIN2 pins. Operation above 20V is not recommended-input overvoltage protection activates at approximately 22.5V, shutting down both power FETs to prevent damage. For reliable continuous operation, the input must remain within the specified 3.6V to 20V range per the datasheet.
Can the LTM4622AIY#PBF operate with only one output enabled?
Yes, the LTM4622AIY#PBF supports independent channel control: pulling RUN1 below 1.0V disables Channel 1 while Channel 2 remains active if RUN2 is held above 1.27V. This allows asymmetric power delivery-for example, powering a 3.3V I/O rail continuously while gating a 1.2V core rail during sleep states-without affecting regulation stability of the active channel.
How is output voltage programmed on the LTM4622AIY#PBF?
Output voltage is set per channel using an external resistor (RFB) between FBx and GND. The internal 60.4kΩ resistor connects VOUTx to FBx, forming a resistive divider with RFB. For a target VOUT, RFB = 0.6V × 60.4kΩ / (VOUT − 0.6V). Example: 3.3V requires 13.3kΩ (1% tolerance). Both channels may use separate RFB values for independent voltages.
Does the LTM4622AIY#PBF require external compensation components?
No, the LTM4622AIY#PBF is fully internally compensated. Its valley current mode architecture and fixed-frequency design eliminate the need for external loop compensation networks. Users only need to place recommended ceramic input (≥4.7µF) and output (≥47µF) capacitors-no RC networks, feed-forward caps, or compensation resistors are required for stable operation.
What thermal derating applies to the LTM4622AIY#PBF at elevated ambient temperatures?
The LTM4622AIY#PBF is rated for –40°C to 125°C internal junction temperature. At 85°C ambient with standard 2-layer PCB and no forced airflow, output current derates to ~1.6A per channel (vs. 2A at 25°C). Derating curves are provided in the "Thermal Considerations" section of the datasheet-actual performance depends on copper area, thermal vias, and heatsinking to the bottom thermal pad.
LTM4622AIY#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- µModule®
- Package/Case:
- 25-PowerBBGA Module
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 3.6V
- Voltage - Input (Max):
- 20V
- Voltage - Output 1:
- 1.5 ~ 12V
- Voltage - Output 2:
- 1.5 ~ 12V
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 2A, 2A
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- OCP, OTP, OVP
- Operating Temperature:
- -40°C ~ 125°C
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 25-BGA (6.25x6.25)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
LTM4622AIY#PBF FAQ
1.How can I place an order for LTM4622AIY#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTM4622AIY#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 LTM4622AIY#PBF reliable?
The price and inventory of LTM4622AIY#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTM4622AIY#PBF is usually 5 days.
3.What payment methods are accepted for LTM4622AIY#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTM4622AIY#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTM4622AIY#PBF?
LTM4622AIY#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTM4622AIY#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 LTM4622AIY#PBF?
For technical support, including LTM4622AIY#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTM4622AIY#PBF requirements.
6.How does Aetrix verify that LTM4622AIY#PBF is sourced from the original manufacturer or authorized distributors?
All LTM4622AIY#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 LTM4622AIY#PBF meets industry standards.
7.What is the process for return or replacement of LTM4622AIY#PBF?
All LTM4622AIY#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTM4622AIY#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 LTM4622AIY#PBF part is unused and in its original packaging.
Return procedure for LTM4622AIY#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTM4622AIY#PBF Tags
-
1S4E_0505S1.5U
GAPTEC Electronic
-
TPS631000DRLR
Texas Instruments
-
XCL209F083DR
Torex Semiconductor Ltd
-
SC202AMLTRT
Semtech Corporation
-
NME1S0505SC
Murata Power Solutions Inc.
-
XCL101A501ER-G
Torex Semiconductor Ltd
-
RFM-0505S
Recom Power
-
TEA 1-0505E
Traco Power
-
MIC33153YHJ-TR
Microchip Technology
-
TEA 1-0505
Traco Power
-
TPSM863252RDXR
Texas Instruments
-
RFB-0505S
Recom Power
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…
