Datasheet SR05-12 Datasheet (Powersolve)

DC-DC Switching Regulator

SR05-12 Series

www.powersolve.co.uk

5A SIP & SMT Packages
Non-Isolated

Features

• Non-Isolated POL Converter

• SIP / SMT Packages

• Output Current 5A

• Input Voltage Range 8.3 - 14VDC

• Output Voltage Range 0.75 - 5VDC

• Efficiency to 92%

• Over Temperature Protection

• Continuous Short Circuit Protection

• Remote On/Off Control

Electrical Specification

INPUT

Input Voltage Range 8.3 - 14V (12V nominal)
Under Voltage Lock-out 8.0V typ. (Power Up)

Input Filter Capacitive
Remote On/Off Control Open Circuit or equal to Vin (Module On)

OUTPUT

Voltage Accuracy ±1.5% max.
Transient Response: 25% step load change <200µ sec.
Ripple and Noise (20MHz BW) [3] 20mV rms, 50mV pk-pk max.

Vo = 5VDC 45mV 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 3000µF max.
External Trim Adj. Range (see table) Vo = 0.75 - 5.0VDC

GENERAL

Efficiency See Table
Isolation Voltage Non-Isolated
Switching Frequency 300KHz typ.
Over Temperature Protection 120°C typ.
Operating Temperature Range -40°C to +85°C
Power Derating See derating curves
Storage Temperature Range -55°C to +125°C
Dimensions 22.9 x 10.16 x 5.6 mm (0.90 x 0.40 x 0.22 Inches) (SIP Package)

Case Non-potted open frame type
Weight 2.3g

7.9V typ. (Power Down)

<0.4VDC (Module Off)

20.3 x 11.43 x 6.09 mm (0.80 x 0.45 x 0.24 Inches) (SMT Package)

NOTE:

1. Measured from High Line to Low Line (Vo set to 1.8VDC).

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 100µF capacitor with ESR<100mΩ across the input to reduce the input ripple voltage.

5. Suffix ‘N’ to model number for Negative Logic Remote On/Off Control.

Typical at nominal line, full load & 25°C unless otherwise stated.

Powersolve Electronics Ltd.  8A Arnhem Road,  Newbury, RG14 5RU.  England

Tel: [phone]  Fax: [phone]  Email: [e-mail]

DC-DC Switching Regulator

www.powersolve.co.uk

Output Voltage and Current Ratings

MODEL INPUT OUTPUT OUTPUT INPUT CURRENT % EFF.

SR05-12-05TH 1.2V 5A 25mA 625mA 80%

(SIP Package) 1.5V 5A 25mA 762mA 82%

SR05-12-05SM 2.5V 5A 35mA 1197mA 87%
(SMT Package) 3.3V 5A 45mA 1545mA 89%

Nominal Input Voltage 12VDC.

VOLTAGE VOLTAGE CURRENT No Load Full Load

0.75V 5A 20mA 428mA 73%

8.3 - 14VDC 1.8V 5A 30mA 893mA 84%

2.0V 5A 30mA 980mA 85%

5.0V 5A 50mA 2264mA 92%

External Resistor Values for

Programming Output Voltage

Vo set (V) Rtrim (KΩ)

0.75 Open

1.2 22.33

1.5 13.0

1.8 9.0

2.0 7.4

2.5 5.0

3.3 3.12

5.0 1.47

Simplified Schematic

Mechanical and Connection Details

SIP Packages

SR05-12-05SM (Vo = 3.3V) Derating CurveSR05-12-05TH (Vo = 3.3V) Derating Curve

All Dimensions in Inches (mm).
Tolerance: Inches x.xx ±0.02 x.xxx ±0.010

Millimeters x.x ±0.5 x.xx ±0.25

SMT Packages

BOTTOM VIEW OF BOARD

Pin Function

1 +Vout
2 Trim
3 Common
4 +Vin
5 On/Off

Powersolve Electronics Ltd.  8A Arnhem Road,  Newbury, RG14 5RU.  England

Tel: [phone]  Fax: [phone]  Email: [e-mail]