ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG BUCK ADJ 1.5A 16TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：5.5V
- Voltage - Input (Max)：60V
- Voltage - Output (Min/Fixed)：1.219V
- Voltage - Output (Max)：54V
- Current - Output：1.5A (Switch)
- Frequency - Switching：500kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：16-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：16-TSSOP-EP
Download product information
Overview
The LT1956IFE#PBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 5.5 V to 60 V and provides a fixed output voltage of 5 V. The device integrates a high-efficiency 1.5 A power switch, oscillator, control logic, and current-mode architecture for fast transient response. It features a shutdown function and low quiescent current of 25 uA. The component switches at a frequency of 500 kHz and supports operation temperatures from -40°C to +125°C. It is housed in a 16-lead TSSOP package with an exposed pad.
Feature Summary
- Integrates a high-efficiency 1.5 A power switch within the die
- Utilizes current-mode architecture for rapid transient response
- Includes built-in oscillator and control circuitry
- Supports system shutdown via dedicated control pin
Applications
- Industrial point-of-load regulation
- Distributed power systems
- Battery-powered equipment
- Automotive electronics
Procurement Notes
Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when sourcing. Confirm the IFE variant matches the required thermal pad configuration for your PCB layout. Ensure the fixed 5 V output aligns with load requirements as no adjustable versions share this exact part number. Check manufacturer documentation for automotive qualification status if applicable.
Selection Notes
Select this component for applications requiring wide input voltage ranges up to 60 V with moderate output currents. The fixed 5 V output simplifies design compared to adjustable regulators. Consider the 500 kHz switching frequency for balancing efficiency and passive component size. Evaluate thermal performance due to the integrated switch and ensure adequate copper area on the exposed pad for heat dissipation.
Part Context
This part belongs to the LT1956 series of high-voltage buck converters. It shares architectural similarities with other LT1956 variants but differs in package type and output voltage configuration. The IFE designation specifies the TSSOP-EP package, while the #PBF suffix denotes environmental compliance. It serves as a compact solution for step-down conversion in space-constrained designs.
Replacement Considerations
LT1956EFE-5#PBF offers identical electrical specifications in a TSSOP-EP package. LT1956IGN-5#PBF provides the same functionality in an SSOP-16 package without the exposed pad. Verify thermal requirements and footprint compatibility before substituting between these package variants.
