SC1408ISTRT SEMTECH [Semtech Corporation], SC1408ISTRT Datasheet
SC1408ISTRT
Related parts for SC1408ISTRT
SC1408ISTRT Summary of contents
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POWER MANAGEMENT Description The SC1408 is a low voltage boost controller that operates from a 1.8V to 16.5V input range. The SC1408 was designed for two cell Alkaline or single cell Lithium Ion battery applications. external components it can be ...
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POWER MANAGEMENT Absolute Maximum Ratings Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation outside of the parameters specified in the Electrical Characteristics section is not implied. Exposure to Absolute Maximum rated conditions ...
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POWER MANAGEMENT Electrical Characteristics (Cont.) Unless specified 5V 0mA +25°C OUT LOAD ...
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POWER MANAGEMENT Pin Configuration TOP VIEW GATE 1 8 BST SHDN 4 5 (SO-8/MSOP-8) Pin Descriptions ...
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POWER MANAGEMENT Applications Information Theory of Operation The SC1408 is a modified hysteretic boost converter controller. The power switch is turned on when the output voltage falls slightly below it’s setpoint. It remains on for approximately 16µs, or until the ...
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POWER MANAGEMENT Applications Information (Cont.) COMPONENT SELECTION SEPIC Converter R SENSE Again, with the SEPIC topology, the value of the sense resistor is the primary determining factor for maximum output current. The simplest approach to select R to add Vin ...
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POWER MANAGEMENT Typical Characteristics Figs Maximum output current vs. input voltage and sense resistor value. (Boost Mode) 3.5 Vo=3.3V 3.0 L=22uH 2.5 2.0 1.5 1.0 0.5 0.0 2.0 2.2 2.4 2.6 Vin (V) 3.5 Vo=12V 3.0 L=22uH 2.5 ...
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POWER MANAGEMENT Typical Characteristics Output Ripple Voltage; Vin=3V, Vo=5V, Io=470mA Ch1 = Output Ripple Ch2 = Voltage at GATE pin Load Transient; Vin=3V, Vo=5V, Io=0 to 500mA Ch1 = Output Voltage Ch2 = Load Current (0.5A/div) 2005 Semtech Corp. Output ...
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POWER MANAGEMENT Typical Application Circuit (Cont.) Fig.1: Typical Application - Boost Configuration L1 1.8V-16.5V IN Coilcraft DO3316P-223 U1 2 BST 100uF + 5 REF 7 GND SC1408CS C5 0.1uF Fig.2: Typical Application - Buck/Boost (SEPIC) Configuration 1.8V ...
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POWER MANAGEMENT Typical Application Circuit (Cont.) Fig.3: Achieving output voltages greater than 16.5V D4 1N4148 3. 0.1uF C2 100uF + C5 0.1uF D3 12V Fig.4: Implementing shutdown with input/output isolation Q2 Si2301DS 3. 5.1k C2 100uF ...
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POWER MANAGEMENT Outline Drawing - SO-8 2X E/2 ccc C 2X N/2 TIPS aaa C SEATING PLANE C NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. DATUMS -A- 3. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD ...
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POWER MANAGEMENT Outline Drawing - MSOP-8 2X E/2 PIN 1 INDICATOR ccc C 2X N/2 TIPS aaa C SEATING PLANE C NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. DATUMS -A- 3. DIMENSIONS "E1" AND "D" DO ...