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 5V 1.2A 10MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：4.3V
- Voltage - Input (Max)：38V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Current - Output：1.2A
- Frequency - Switching：200kHz ~ 2MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：10-MSOP-EP
Download product information
Overview
The LT3971AIMSE-5#TRPBF is a monolithic buck switching regulator from Analog Devices, housed in a 10-lead MSOP package with an exposed pad. It accepts an input voltage range of 4.3V to 38V and provides a fixed 5V output at up to 1.3A. The device operates with a quiescent current of 2.2µA and supports adjustable switching frequencies up to 2MHz. It features Burst Mode operation for low ripple and includes internal compensation, soft-start, and power good signaling.
Feature Summary
- Ultra-low quiescent current design maintains high efficiency at light loads while keeping output ripple below 15mV via Burst Mode operation.
- Internally compensated current mode topology ensures fast transient response and stable loop performance across varying load conditions.
- Integrated accurate 1V threshold enable pin allows precise shutdown control, reducing input supply current to 700nA when disabled.
Applications
- USB-powered portable devices requiring efficient step-down conversion
- Battery-operated equipment needing extended runtime through low standby consumption
- Industrial systems utilizing wide input voltage ranges up to 38V
Procurement Notes
Verify the specific suffix #TRPBF indicates tape-and-reel packaging configuration. Confirm that the AIMSE variant meets industrial temperature specifications (-40°C to +125°C). Ensure compatibility with 10-MSOP footprint requirements including the exposed thermal pad for adequate heat dissipation during high-current operation.
Selection Notes
Select this component when a fixed 5V output is required from a wide input range without external feedback resistors. Consider the LT3971A series for improved reference accuracy compared to previous generations. Evaluate thermal performance based on the MSOP package limitations under continuous 1.3A load conditions.
Part Context
This part belongs to the LT3971A family of high-efficiency step-down regulators designed for space-constrained applications. The 'A' designation signifies enhanced reference voltage accuracy over the standard LT3971. The '-5' suffix denotes the fixed 5V output version, distinguishing it from adjustable or other fixed voltage variants within the same product line.
Replacement Considerations
LT3971EMSE-5#TRPBF offers similar functionality but may differ in operating temperature grade or manufacturing lot specifications. Verify electrical parameters match exactly before substitution. Cross-reference datasheet revisions to ensure pinout and functional compatibility remain unchanged.
