Product Details
The LT1375/LT1376 are 500kHz monolithic buck mode switching regulators. A 1.5A switch is included on the die along with all the necessary oscillator, control and logic circuitry. High switching frequency allows a considerable reduction in the size of external components. The topology is current mode for fast transient response and good loop stability. Both fixed output voltage and adjustable parts are available.
A special high speed bipolar process and new design techniques achieve high efficiency at high switching frequency. Efficiency is maintained over a wide output current range by using the output to bias the circuitry and by utilizing a supply boost capacitor to saturate the power switch. A shutdown signal will reduce supply current to 20µA on both parts. The LT1375 can be externally synchronized from 580kHz to 900kHz with logic level inputs.
The LT1375/LT1376 fit into standard 8-pin PDIP and SO packages, as well as a fused lead 16-pin SO with much lower thermal resistance. Full cycle-by-cycle short-circuit protection and thermal shutdown are provided. Standard surface mount external parts are used, including the inductor and capacitors.
For low input voltage applications with 3.3V output, see LT1507. This is a functionally identical part that can operate with input voltages between 4.5V and 12V.
Applications
IC REG BUCK SEPIC 5V 1.5A 8SO
Buck, SEPIC Switching Regulator IC Positive Fixed 5V 1 Output 1.5A (Switch) 8-SOIC (0.154", 3.90mm Width)
Buck, SEPIC Switching Regulator IC Positive Fixed 5V 1 Output 1.5A (Switch) 8-SOIC (0.154", 3.90mm Width)
IC REG BUCK SEPIC 5V 1.5A 8SOIC
Switching Voltage Regulators 5V 500kHz 1.5A S/D Sw Reg w/sync
Analog Devices, Inc. | Shenzhen Shengyu Electronics Technology Limited | Quarktwin Technology Ltd. | DigiKey | Lingto Electronic Limited | VAST STOCK CO., LIMITED | |
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Product Category | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators |
Product Number | LT1375CS8-5#PBF | LT1375CS8-5#PBF | LT1375CS8-5#PBF | LT1375CS8-5#PBF-ND | LT1375CS8-5#PBF | LT1375CS8-5#PBF |
Product Name | 1.5A, 500kHz Step-Down Switching Regulators | Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators | Voltage Regulators - DC DC Switching Regulators | Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | Switching Voltage Regulators |
Configuration / Function | Buck | Buck | ||||
Package Type | SOIC | SOIC | SOIC; Other; 8-SOIC (0.154\", 3.90mm Width) | SOIC; Other; 8-SOIC (0.154", 3.90mm Width) | ||
Life Cycle Stage | Production | Active | Active | |||
IOUT | 1.2 amps | 1.5 amps | 1.5 amps | 1.5 amps | 1.5 amps | |
VIN | 5 to 25 volts | 5 to 25 volts | 5 to 25 volts |