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 BCK SEPIC 1.8V 1.5A 8MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck, SEPIC
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：25V
- Voltage - Output (Min/Fixed)：1.8V
- Voltage - Output (Max)：-
- Current - Output：1.5A
- Frequency - Switching：1.25MHz
- Synchronous Rectifier：No
- Operating Temperature：0°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Supplier Device Package：8-MSOP-EP
Download product information
Overview
The LT1767EMS8E-1.8#TRPBF is a monolithic buck switching regulator from Analog Devices Inc., housed in an 8-pin MSOP package with an exposed pad. It integrates a high-efficiency 1.5A power switch and operates at a fixed 1.25MHz switching frequency. The device supports an input voltage range of 3V to 25V, providing a fixed 1.8V output. Key electrical parameters include a maximum output current of 1.2A, a quiescent current of 6µA, and a shutdown supply current of 1mA. It functions within a temperature range of -40°C to +125°C.
Feature Summary
- Integrates a high-efficiency 1.5A internal power switch for compact design
- Utilizes current mode control architecture to ensure fast transient response and loop stability
- Features low static current consumption suitable for battery-powered applications
- Includes a shutdown pin for precise power management control
Applications
- Dual source power supplies requiring reverse leakage protection
- Portable equipment utilizing single-cell lithium-ion or nickel-cadmium batteries
- Adapters and modems requiring efficient step-down conversion
- General-purpose DC-to-DC conversion in space-constrained designs
Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation prior to procurement. Ensure the 8-MSOP EP package footprint matches the target PCB layout. Cross-reference the exact part number with Analog Devices to avoid confusion with non-exposed pad variants or different output voltage options within the LT1767 family.
Selection Notes
Select this component for applications requiring a fixed 1.8V output from a 3V to 25V input range. Consider the 1.25MHz frequency for smaller external passive components compared to lower-frequency regulators. Evaluate thermal performance based on the MSOP-EP package's exposed pad for heat dissipation. Verify that the 1.2A output current meets the load requirements while accounting for efficiency losses at the specific operating duty cycle.
Part Context
This part belongs to the LT1767 series of monolithic step-down switching regulators. The series is characterized by its integration of a 1.5A switch and 1.25MHz operation. Variants within the family differ primarily in fixed output voltages (such as 1.8V, 2.5V, 3.3V, and 5V) and package options. The EMS8E designation specifies the MSOP package with an exposed thermal pad and lead-free construction.
Replacement Considerations
LT1767EMS8E-3.3#TRPBF: Same package and features, but provides a fixed 3.3V output instead of 1.8V. LT1767EMS8E-5#TRPBF: Same package and features, but provides a fixed 5V output instead of 1.8V. LT1767EMS8-1.8#TRPBF: Similar functionality and output voltage, but lacks the 'E' suffix indicating lead-free/exposed pad variations; verify package compatibility.
