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Product Detailed Parameters
- Description：IC REG BUCK SEPIC ADJ 1.5A 8MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck, SEPIC
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：3V
- Voltage - Input (Max)：25V
- Voltage - Output (Min/Fixed)：1.2V
- Voltage - Output (Max)：22.5V
- 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
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Overview
The LT1767EMS8E#TRPBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3V to 25V and delivers up to 1.5A output current. The device features a fixed switching frequency of 1.25MHz and adjustable output voltage capability. It includes a high-efficiency internal switch, current mode control for fast transient response, and low quiescent current of 6µA. The component supports shutdown functionality and operates within a temperature range of -40°C to +125°C. It is housed in an 8-lead MSOP package with an exposed pad.
Feature Summary
- Integrates a high-efficiency 1.5A power switch and complete current-mode control circuitry on a single die.
- Provides fast transient response and excellent loop stability through proprietary current-mode control architecture.
- Features ultra-low static current consumption of 6µA to minimize standby power loss.
- Includes a dedicated shutdown pin for effective power management and system energy conservation.
Applications
- Portable equipment powered by battery or adapter sources
- Distributed bias supplies for logic boards
- Post-regulation for standard bus voltages
- Charging batteries from AC adapters
Procurement Notes
Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm the manufacturer part number matches Analog Devices Inc. specifications exactly. Check RoHS compliance status against current regulatory requirements. Ensure the MSOP-EP-8 package type aligns with PCB footprint designs. Validate thermal performance expectations based on ambient operating conditions.
Selection Notes
Select this regulator for applications requiring compact size and high efficiency at moderate currents. The 1.25MHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the exposed pad for thermal dissipation needs. Verify that the input voltage range covers the maximum source voltage. Evaluate the need for adjustable versus fixed output configurations based on system design.
Part Context
This component belongs to the LT1767 series of synchronous step-down switching regulators. It is designed for space-constrained applications requiring high efficiency. The family offers various output voltage options and packaging styles. The EMS8E designation specifies the surface-mount MSOP package with an exposed thermal pad for improved heat transfer.
Replacement Considerations
LT1767EMS8E#PBF is a tube-packaged alternative with identical electrical characteristics. LT1767EMS8E-3.3#TRPBF provides a fixed 3.3V output instead of adjustable. LT1767EMS8E-5#TRPBF offers a fixed 5V output option. Cross-reference pinouts and thermal pads before substitution.
