Product Summary
The LT1584CT#PBF is a 500kHz monolithic buck mode switching regulator, functionally identical to the LT1584CT#PBF but optimized for lower input voltage applications. It will operate over a 4V to 15V input range, compared with 5.5V to 25V for the LT1375. 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 (3.3V) and adjustable parts are available. The applications of the LT1584CT#PBF are Portable Computers, Battery-Powered Systems, Battery Charger and Distributed Power.
Parametrics
LT1584CT#PBF absolute maximum ratings: (1)Input Voltage: 16V; (2)Boost Pin Voltage: 25V; (3)Shutdown Pin Voltage: 7V; (4)FB Pin Voltage (Adjustable Part): 3.5V; (5)FB Pin Current (Adjustable Part): 1mA; (6)Sense Voltage (Fixed 3.3V Part): 5V; (7)Sync Pin Voltage: 7V; (8)Operating Ambient Temperature Range: 0 to 70℃; (9)Max Operating Junction Temperature: 125℃; (10)Storage Temperature Range: –65 to 150℃; (11)Lead Temperature (Soldering, 10 sec): 300℃.
Features
LT1584CT#PBF features: (1)Constant 500kHz Switching Frequency; (2)Uses All Surface Mount Components; (3)Operates with Inputs as Low as 4V; (4)Saturated Switch Design (0.3Ω); (5)Cycle-by-Cycle Current Limiting; (6)Easily Synchronizable; (7)Inductor Size as Low as 2μH; (8)Shutdown Current: 20μA.
Diagrams
Image | Part No | Mfg | Description | Pricing (USD) |
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LT1584CT#PBF |
IC REG LDO ADJ TO220-3 |
Data Sheet |
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Image | Part No | Mfg | Description | Pricing (USD) |
Quantity | |||||||||||
LT1500 |
Other |
Data Sheet |
Negotiable |
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LT1500CS |
Linear Technology |
IC SW REG CURRNT MODE ADJ 14SOIC |
Data Sheet |
Negotiable |
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LT1500CS-3/5 |
Linear Technology |
IC SW REG CURRNTMODE 3V/5V14SOIC |
Data Sheet |
Negotiable |
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LT1500IS |
Linear Technology |
IC SW REG CURRNT MODE ADJ 14SOIC |
Data Sheet |
Negotiable |
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LT1500IS-3/5 |
Linear Technology |
IC SW REG CURRNTMODE 3V/5V14SOIC |
Data Sheet |
Negotiable |
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LT1501 |
Other |
Data Sheet |
Negotiable |
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