SC2602LEVB SEMTECH [Semtech Corporation], SC2602LEVB Datasheet
SC2602LEVB
Related parts for SC2602LEVB
SC2602LEVB Summary of contents
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POWER MANAGEMENT Description The SC2602L is low-cost, full featured, synchronous volt- age-mode controller designed for use in single ended power supply applications where efficiency is of primary concern. Synchronous operation allows for the elimina- tion of heat sinks in many ...
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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 4.75V to 12.6V; GND = PGND = 0V ...
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POWER MANAGEMENT Pin Configuration Top View VCC PWRGD OVP OCSET PHASE DH PGND (14-Pin SOIC) Pin Descriptions ...
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POWER MANAGEMENT Block Diagram VCC PWRGD VCC OVP SENSE Vbg COMP VCC 10uA SS/SHDN GND 1.5uA Theory of Operation Synchronous Buck Converter The output rail is regulated by a synchronous, voltage- mode pulse width modulated (PWM) controller. This section has ...
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POWER MANAGEMENT Applications Information (Cont.) Soft Start Initially, SS/SHDN sources 10µA of current to charge an external capacitor. The outputs of the error amplifiers are clamped to a voltage proportional to the voltage on SS/SHDN. This limits the on-time of ...
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POWER MANAGEMENT Application Circuit Typical 12V Application Circuit with Bootstrapped BSTH + 1.74K 0. 0.1u 1.0u 1 PWRGD OVP 1N4148 2005 Semtech ...
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POWER MANAGEMENT Typical Characteristics Output Ripple Voltage Ch1: Vo_rpl 5V 3.3V 12A IN O OUT PIN Descriptions Ch1: Vo_rpl 5V 1.3V 12A IN OUT OUT ...
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POWER MANAGEMENT Typical Characteristics (Cont.) Ch1: Vo_rpl 5V 1.3V 12A IN OUT OUT 2005 Semtech Corp. Ch1: Top FET Ch2: Bottom FET 9 SC2602L www.semtech.com ...
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POWER MANAGEMENT Typical Characteristics (Cont.) Hiccup Mode Start Up Mode 2005 Semtech Corp. Ch1: Vin Ch2: Vss Ch3: Top Gate Ch4: Vout Vin = 5V Vout = 3.3V Vbst = 12V Iout = S.C. Iout = S.C. Iout = ...
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POWER MANAGEMENT Gpwm EA R Vbg Vin C 1.25Vdc 0.5Vdc 0.8Vdc Fig. 2. SC2602L small signal model. The control model of SC2602L control loop small signal can be depicted in Fig. 2. This model can also be used in SPICE ...
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POWER MANAGEMENT Applications Information (Cont := ⋅ ⋅ R ⋅ ⋅ pwm in m esr when < < esr o ...
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POWER MANAGEMENT Applications Information (Cont.) 100 mag phase 135 180 Bode plot of the control loop 2005 Semtech Corp. Loop Gain Mag (dB 0.01 0 kHz ...
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POWER MANAGEMENT Outline Drawing - S0- E/2 1 ccc aaa C SEAT I NG PLANE C SIDE VIEW NOT CONT R OLLING DIMENSIONS ARE IN MILLIMET E RS (ANGLES ...