Powersolve SR20-12W Series - Manual

Powersolve Electronics Ltd. 8A Arnhem Road, Newbury, RG14 5RU. England
Tel: 01635 521858 Fax: 01635 523771 Email: [email protected]
www.powersolve.co.uk
DC-DC Switching Regulator
SR20-12W Series
20A SIP & SMT Packages
Non-Isolated
Features
• Non-Isolated POL Converter
• SIP / SMT Packages
• Output Current 20A
• Input Voltage Range 6 - 14VDC
• Output Voltage Range 0.7525 - 5VDC
• Efficiency to 94%
• Over Temperature Protection, Remote On/Off Control
• Continuous Short Circuit Protection
• Output Voltage Sequencing, Power Good Signal
INPUT
Input Voltage Range
6.0 - 14V (12V nominal)
6.5 - 14V (5.0V out version)
Under Voltage Lock-out 5.0V typ. (Power Up)
4.0V typ. (Power Down)
Input Filter Capacitive
Remote On/Off Control Open Circuit or equal to Vin (Module On)
<0.4VDC (Module Off)
OUTPUT
Voltage Accuracy
±1.5% max.
Transient Response: 25% step load change <200µ sec.
Ripple and Noise (20MHz BW) [3] 30mV rms, 75mV pk-pk max.
Temperature Coefficient ±0.03% / °C
Short Circuit Protection Continuous
Line Regulation [1] ±0.2%
Load Regulation [2] ±0.5%
Capacitive Load, Low ESR 8000µF max.
External Trim Adj. Range Vo = 0.75 - 5.0VDC
Sequencing Slew Rate Capability (dVseq/dt) 0.1 - 1.0V / m sec.
Sequencing Delay Time 10m sec.
Tracking Accuracy 200mV max. (Power Up)
400mV max. (Power Down)
Power Good Signal Asserted Logic High Vo = 90% - 100% Vo nom.
GENERAL
Efficiency
See Table
Isolation Voltage Non-Isolated
Switching Frequency 300KHz typ.
Over Temperature Protection 130°C typ.
Operating Temperature Range -40°C to +85°C
Power Derating See derating curves
Storage Temperature Range -55°C to +125°C
Dimensions 61.0 x 12.95 x 8.30 mm (2.40 x 0.51 x 0.327 Inches) (SIP Package)
43.2 x 13.46 x 9.3 mm (1.70 x 0.53 x 0.366 Inches) (SMT Package)
Case Non-potted open frame type
Weight 11g
Electrical Specification
Typical at nominal line, full load & 25°C unless otherwise stated.
NOTE:
1. Measured from High Line to Low Line (Vo set to 3.3VDC).
2. Measured from Full Load to No Load (Vo set to 3.3VDC).
3. Output noise & ripple is measured with a 10µF tantalum & 1µF ceramic capacitor across the output.
4. It is recommended to put a 200µF capacitor with ESR<25mΩ across the input to reduce the input ripple voltage.
5. Suffix ‘N’ to model number for Negative Logic Remote On/Off Control.
6. Suffix ‘P’ to model number for Power Good function.