SRAH-01H1A0

NON-ISOLATED DC/DC CONVERTER 4.5 V-32 V Input 1.2 V-3.3 V/1 A Output xRAH-01H1A0 • • • Non-Isolated output Trim function Low profile package (7.82 mm) RoHS Compliant • • • Remote On/Off OCP/SCP Under-voltage lockout (UVLO) Description The Bel xRAH-01H1A0 is part of the low cost non-isolated dc/dc converter series. The modules use a SMD or vertical mount package for ease of layout and space savings. The output is widely trimmed from 1.2 V to 3.3 V. Typical features include remote on/off, input under voltage lockout, over current protection and short circuit protection. Part Selection Output Voltage 1.2 V - 3.3 V Input Voltage 4.5 V - 32 V Max. Output Current 1A Max. Output Power 3.3 W Typical Efficiency 86% Part Number Surface Mount SRAH-01H1A0 Part Number Vertical Mount VRAH-01H1A0 Note: Add “0” suffix at the end of the model number to indicate “Tube Packaging”, and “R” for “Reel Packaging”, and “G” for “Tray Packaging”. Absolute Maximum Ratings Parameter Input Voltage (continuous) Output Enable Terminal Voltage Ambient Temperature Storage Temperature Min -0.3 V -0.3 V -40 °C -40 °C Typ Max 34 V 12 V 85 °C 125 °C Notes Input Specifications Parameter Input Voltage Input Current (no load) Input Current (full load) VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V Remote Off Input Current Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (RMS) 2 I t Inrush Current Transient Turn on Voltage Threshold Turn off Voltage Threshold Min 4.5 V Typ 20 V 5 mA 2 mA 300 mA 100 mA 0.02 A s 4.1 V 3.3 V 2 Max 32 V 8 mA 0.20 A 0.16 A 0.12 A 0.11 A 0.09 A 5 mA 420 mA 160 mA 0.1 A s 4.5 V 4.0 V 2 Notes Tested with simulated source impedance of 500 nH, 5 Hz to 20 MHz and one 100 F/50 V electrolytic capacitor and a 3.3 uF/50 V ceramic capacitor at the input Note: All specifications are typical at 25 °C unless otherwise stated. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTER 4.5 V-32 V Input 1.2 V-3.3 V/1 A Output Output Specifications Parameter Output Voltage Set Point VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V Line Regulation VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V Load Regulation VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V Regulation Over Temperature (-40 °C to +85 °C) Output Current Current Limit Threshold Short Circuit Surge Transient Ripple and Noise (rms) Ripple and Noise (pk-pk) Turn on Time Overshoot at Turn on Output Capacitance Transient Response Overshoot 50% ~ 100% Max Load Settling Time Overshoot 100% ~ 50% Max Load Settling Time Overshoot 50% ~ 100% Max Load Settling Time Overshoot 100% ~ 50% Max Load Settling Time Overshoot 50% ~ 100% Max Load Settling Time Overshoot 100% ~ 50% Max Load Settling Time Overshoot 50% ~ 100% Max Load Settling Time Overshoot 100% ~ 50% Max Load Settling Time Overshoot 50% ~ 100% Max Load Settling Time Overshoot 100% ~ 50% Max Load Settling Time 0A 2A 0 uF Min 3.234 V 2.450 V 1.764 V 1.470 V 1.176 V Typ 3.3 V 2.5 V 1.8 V 1.5 V 1.2 V ±3 mV ±2 mV ±2 mV ±1 mV ±1 mV ±3 mV ±2 mV ±2 mV ±1 mV ±1 mV ±10 mV 0.02 A s 6 mV 60 mV 6 mS 2% 80 mV 150 uS 80 mV 150 uS 70 mV 120 uS 70 mV 120 uS 60 mV 100 uS 60 mV 100 uS 60 mV 100 uS 60 mV 100 uS 60 mV 100 uS 60 mV 100 uS 2 Max 3.366 V 2.550 V 1.836 V 1.530 V 1.224 V ±6 mV ±5 mV ±4 mV ±3 mV ±2 mV ±6 mV ±5 mV ±4 mV ±3 mV ±2 mV ±20 mV 1A 3A 0.1 A s 10 mV 100 mV 30 mS 5% 400uF 120 mV 200 uS 120 mV 200 uS 110 mV 160 uS 110 mV 160 uS 100 mV 130 uS 100 mV 130 uS 100 mV 130 uS 100 mV 130 uS 100 mV 130 uS 100 mV 130 uS 2 Notes Test conditions: Vin=20 V, Io=50% full load Test condition: 0-20 MHz BW VO=3.3 V VO=2.5 V VO=1.8 V Test conditions: di/dt = 0.5 A/uS; Vin = 20 V VO=1.5 V VO=1.2 V Note: All specifications are typical at 20 V input, full load at 25 °C unless otherwise stated. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTER 4.5 V-32 V Input 1.2 V-3.3 V/1 A Output General Specifications Parameter Efficiency VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V Switching Frequency VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V Output Trim Range MTBF Dimensions (surface mount) Inches (L × W × H) Millimeters (L × W × H) Dimensions (vertical) Inches (L × W × H) Millimeters (L × W × H) Weight 270 kHz 190 kHz 150 kHz 130 kHz 100 kHz 1.2 V 290 kHz 220 kHz 170 kHz 150 kHz 120 kHz 8,040,762 hours 0.78 x 0.70 x 0.32 19.81 x 17.78 x 8.13 0.70 x 0.308 x 0.65 17.78 x 7.82 x 16.51 5.1 g 310 kHz 250 kHz 190 kHz 170 kHz 140 kHz 3.3 V Vo=1.2 V when trim pin open. Calculated Per Bell Core SR-332 (IO =0.8 A, Vin=20 V; Ta = 25 °C) 83% 80% 76% 73% 70% 86% 83% 79% 76% 73% Measured at Vin=20 V, full load. Min Typ Max Notes Note: All specifications are typical at 20V input, full load at 25 °C unless otherwise stated. Control Specifications Parameter Remote On/Off Signal Low (Unit On) Signal High (Unit Off) Min -0.3 V 2.8 V Typ Max 1V 12 V Notes Remote on/off pin open, unit on. Output Trim Equations Equations for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) and the nominal output voltage of the converter (Vo) are shown below. The Trim Down resistor should be connected between the Trim pin and Vout. The Trim Up resistor should be connected between the Trim pin and Ground. Only one of the resistors should be used for any given application. Vout RTrimDown = 8. 7 − 21.5 Vo − Vadj Rtrimdown Module Trim GND RTrimUp = 17.2 Vadj − Vo Vout Module Trim Rtrimup GND Note: Output voltage Vo=1.205 V Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTER 4.5 V-32 V Input 1.2 V-3.3 V/1 A Output Efficiency Data Efficiency Curve 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Output Current (A) 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% Efficiency Curve Efficiency 4.5 V 20 V 32 V Efficiency 4.5 V 20 V 32 V 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Output Current (A) Vo = 3.3 V Vo = 2.5 V Efficiency Curve 95.0% 90.0% 85.0% Efficiency 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Output Current (A) 4.5 V 20 V 32 V Efficiency Curve 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Output Current (A) Efficiency 4.5 V 20 V 32 V Vo = 1.8 V Efficiency Curve 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Output Current (A) Vo = 1.5 V Efficiency 4.5 V 20 V 32 V Vo = 1.2 V Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTER 4.5 V-32 V Input 1.2 V-3.3 V/1 A Output Thermal Derating Curve Test Condition: Derating curve is tested at nominal input voltage. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTER 4.5 V-32 V Input 1.2 V-3.3 V/1 A Output Mechanical Outline SRAH-01H1A0 Pin Connections Pin 1 Function Remote On/Off (option) Vin Ground Vout Trim (option) N/A N/A bel 2 3 4 5 6 7 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTER 4.5 V-32 V Input 1.2 V-3.3 V/1 A Output Mechanical Outline (continued) VRAH-01H1A0 bel bel Pin Connections Pin 1 2 3 4 5 Function Remote On/Off (option) Vin Ground Vout Trim (option) RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. These parts are not however compatible with the higher temperatures associated with lead free solder processes and must be soldered using a reflow profile with a peak temperature of no more than 240 ºC. ©2005 Bel Fuse Inc. Specifications subject to change without notice. 112305 CORPORATE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com FAR EAST Bel Fuse Ltd. 8F/ 8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel 852-2328-5515 Fax 852-2352-3706 www.belfuse.com EUROPE Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Suite G7, Preston Lancashire, PR1 8UD, U.K. Tel 44-1772-556601 Fax 44-1772-888366 www.belfuse.com