SC20A
SC20A is non-isolated DC-DC converter manufactured by Bourns.
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SC20A SERIES
HDLV Family
Description
The SC20A is a low-cost, 20-Amp, non-isolated DC-DC converter with an amazingly small footprint of only 0.8 in2. Designed for today's high power microprocessors, the SC20A accepts either 5 V or 3.3 V inputs and offers outputs from 1.3 V to 3.3 V. The SC20A also uses an industrystandard pin-out making it easy to increase power in existing designs. Using Bourns Switch Power's proprietary V2TM architecture, the SC20A provides ultrafast transient response, improved line and load regulation, and very high efficiency. It also incorporates short-circuit protection, Enable / Disable control, output voltage trim, and remote sense.
Features
- Low Cost
- 20-Amp Output Current
- 90 % Efficiency
- Industry-standard Pin-out
- Low 0.6 " Profile
- Nonisolated Output
- Remote Sense
- Trim Function
- Enable / Disable
- Short-circuit Protection with auto-restart
- Fast Transient Response
- High-temperature Operation
- Output Precharge Capability Input Voltage Current Control Voltage High = Disable Low = Enable E/D Current mon Specifications
Min 4.5 3.0 Nom 5 3.3 Max 5.5 3.6 20 Units Vdc Vdc A Vdc Vdc m A
Notes 4.75 Vin Startup
2.4 0.4 1
Source 500 m A Open=Enable
Output Current Voltage Setpoint Accuracy Voltage Trim Range Line Regulation Load Regulation Current Limit Dynamic Response 0 to 20 A load 20 to 0 A load Temperature Regulation
-10 ±0.1 ±0.3 25 200 19 200 19
20 ±2 +10
A %Vnom %Vnom %Vnom %Vnom A m V ∆i/∆t = 3 A/µs µs m V ∆i/∆t = 3 A/µs µs ±0.02 %Vout/°C
Patents 5,770,940 5,978,195 6,127,814
General MTBF Operating Temperature Storage Temperature Switching Frequency
1,000 -25 -40 -40 200 85 85 125...
