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Product Detailed Parameters
- Description：IC REG BST SEPIC ADJ 710MA 8MSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Boost, SEPIC
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：1.5V
- Voltage - Input (Max)：12V
- Voltage - Output (Min/Fixed)：1.24V
- Voltage - Output (Max)：30V (Switch)
- Current - Output：710mA (Switch)
- Frequency - Switching：620kHz
- Synchronous Rectifier：No
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：8-MSOP
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Overview
The LT1317BCMS8#PBF is a micropower, fixed-frequency boost DC/DC converter in an 8-pin MSOP package. It operates over a wide input voltage range of 1.5V to 12V and provides an adjustable output from 1.24V to 30V with a maximum output current of 0.2A. The device features a 600kHz switching frequency and a typical quiescent current of 100uA. Unlike the standard LT1317, it does not shift into Burst Mode at light loads, eliminating low-frequency output ripple. It includes shutdown functionality and operates within a commercial temperature range of 0°C to +70°C.
Feature Summary
- Fixed-frequency PWM operation eliminates low-frequency output ripple by avoiding Burst Mode transitions at light loads
- Micropower design maintains high efficiency across a broad load range through optimized switching regulation
- Integrated shutdown pin enables significant power reduction when the converter is not in active use
Applications
- Two-cell lithium-ion battery to regulated DC/DC conversion
- Portable instrumentation requiring low noise power supplies
- Battery-operated systems needing stable voltage from varying cell states
Procurement Notes
Verify the specific suffix #PBF indicates lead-free compliance and tube packaging as per Analog Devices standards. Confirm the MSOP-8 package dimensions match your PCB footprint requirements. Ensure the commercial temperature grade (0°C to +70°C) meets your operational environment specifications before finalizing procurement.
Selection Notes
Select this component when low output ripple is critical, as it avoids the burst mode behavior found in other variants. It is suitable for applications requiring a wide input voltage range up to 12V. Consider the 0.2A current limit and 600kHz frequency for filter component sizing. Verify that the commercial temperature range is sufficient for your specific deployment conditions.
Part Context
This part belongs to the LT1317 family of micropower step-up converters. It shares core architecture with the LT1317 but differs in control logic regarding light-load operation. The MSOP-8 package offers a compact solution for space-constrained designs. It is categorized under PMIC switching regulators within the Analog Devices portfolio.
Replacement Considerations
LT1317CMS8#PBF serves as a functional substitute but utilizes Burst Mode at light loads, which may introduce low-frequency ripple not present in the BCMS8 variant.
