Overview
Features and Benefits
- Precise Control of Peak Switch Current
- Quiescent Current:
- 33µA in Active Mode
- 3µA in Shutdown Mode
- Low-Battery Detector Active in Shutdown
- Low Switch VCESAT: 300mV at 500mA
- 8-Lead MSOP and SO Packages
- Operates with VIN as Low as 1.5V
- Logic Level Shutdown Pin
Product Details
The LT1316 is a micropower step-up DC/DC converter that operates from an input voltage as low as 1.5V. A programmable input current limiting function allows precise control of peak switch current. Peak switch current can be set to any value between 30mA and 500mA by adjusting one resistor. This is particularly useful for DC/DC converters operating from high source impedance inputs such as lithium coin cells or telephone lines.
The fixed off-time, variable on-time regulation scheme results in quiescent current of only 33µA in active mode. Quiescent current decreases to 3µA in shutdown with the low-battery detector still active.
The LT1316 is available in 8-lead MSOP and SO packages.
Applications
- Battery Backup
- LCD Bias
- Low Power –48V to 5V/3.3V Converters
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
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LTspice
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PCN-PDN Information
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Lead Times
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