NON-ISOLATED DC/DC CONVERTERS
4.5V-13.2V Input 0.9V-5.0V/3A Output
x7AH-03Exx0 Series
• • • • Non-Isolated High Efficiency High Power Density Excellent Thermal Performance • • • • Low Cost Remote On/Off Under-voltage Lockout (UVLO) * OCP/SCP
* Not applicable for 5.0V output module.
Description
The Bel x7AH-03Exx0 Series are part of the low cost non-isolated DC/DC power converters. The modules use a surface mount package or vertical package for ease of layout and space savings, with a low profile of only 7.82mm. The output is closely regulated and the efficiency of 5V output module is typically 95% at full load. Typical features include Remote On/Off, under-voltage lockout, over-current protection and short circuit protection.
Part Selection
Output Voltage 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V Input Voltage 8.0 – 13.2V 4.5 – 13.2V 4.5 – 13.2V 4.5 – 13.2V 4.5 – 13.2V 4.5 – 13.2V 4.5 – 13.2V 4.5 – 13.2V Max. Output Current 3A 3A 3A 3A 3A 3A 3A 3A Max. Output Power 15W 9.9W 7.5W 5.4W 4.5W 3.6W 3W 2.7W Typical Efficiency 95% 93% 91% 88% 87% 85% 84% 82% Part Number Surface Mount S7AH-03E500 S7AH-03E330 S7AH-03E250 S7AH-03E180 S7AH-03E150 S7AH-03E120 S7AH-03E100 S7AH-03E090 Part Number Vertical Mount V7AH-03E500 V7AH-03E330 V7AH-03E250 V7AH-03E180 V7AH-03E150 V7AH-03E120 V7AH-03E100 V7AH-03E090
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 -0.3V -0.3V 0°C -40°C Typ Max 14V 13.2V 70°C 100°C Notes
Input Specifications
Parameter Input Voltage Input Current (no load) Input Current (full load) Remote Off Input Current Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (RMS) I2t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold Min 4.5V Typ 30mA 4mA 75mA 30mA 0.02A2s 4.1V 3.3V Max 13.2V 3A 150mA 60mA 0.08A2s 4.5V 4.0V With simulated source impedance of 500nH, 5Hz to 20MHz; Use one 270uF/16V Oscon capacitor with ESR = 0.018 ohm max. at 100KHz at 25°C Not applicable for 5.0V output. Notes Min. input voltage for 5.0V output module should be 8.0V
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 CONVERTERS
4.5V-13.2V Input 0.9V-5.0V/3A Output
Output Specifications
Parameter Output Voltage Set Point VO=5.0V VO=3.3V VO=2.5V VO=1.8V VO=1.5V VO=1.2V VO=1.0V VO=0.9V Line Regulation VO=5.0V VO=3.3V VO=2.5V VO=1.8V VO=1.5V VO=1.2V VO=1.0V VO=0.9V Load Regulation VO=5.0V VO=3.3V VO=2.5V VO=1.8V VO=1.5V VO=1.2V VO=1.0V VO=0.9V Regulation Over Temperature (0°C to 70 °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 50% ~ 100% Max Load 100% ~ 50% Max Load 50% ~ 100% Max Load 100% ~ 50% Max Load 50% ~ 100% Max Load 100% ~ 50% Max Load Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time 150mV 60uS 150mV 60uS 110mV 60uS 110mV 60uS 110mV 60uS 110mV 60uS 200mV 120uS 200mV 120uS 150mV 120uS 150mV 120uS 150mV 100uS 150mV 100uS 0uF 0A 3.3A 15mV 10mV 8mV 8mV 5mV 5mV 5mV 5mV 20mV 0.02A s 15mV 50mV 0% 2
Min 4.900V 3.234V 2.450V 1.764V 1.470V 1.176V 0.980V 0.882V -
Typ 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 10mV 8mV 6mV 6mV 5mV 5mV 5mV 5mV
Max 5.100V 3.366V 2.550V 1.836V 1.530V 1.224V 1.020V 0.918V 15mV 10mV 10mV 10mV 8mV 8mV 8mV 8mV 25mV 20mV 15mV 15mV 10mV 10mV 10mV 10mV 40mV 3A 8A 0.08A2s 40mV 100mV 60mS 3% 1200uF
Notes
Test condition: Vin=8V, lout=full load
BW = 0-20MHz. BW = 0-20MHz.
VO=5V
VO=3.3V
di/dt = 0.5A/uS; Vin = 8V; Ta = 25°C and with a 220uF Tan. capacitor on output
VO=2.5V
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 CONVERTERS
4.5V-13.2V Input 0.9V-5.0V/3A Output
Output Specifications (continued)
Parameter Transient Response 50% ~ 100% Max Load 100% ~ 50% Max Load 50% ~ 100% Max Load 100% ~ 50% Max Load 50% ~ 100% Max Load 100% ~ 50% Max Load 50% ~ 100% Max Load 100% ~ 50% Max Load 50% ~ 100% Max Load 100% ~ 50% Max Load Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time 110mV 60uS 110mV 60uS 110mV 60uS 110mV 60uS 110mV 60uS 110mV 60uS 110mV 60uS 110mV 60uS 110mV 60uS 110mV 60uS 150mV 100uS 150mV 100uS 150mV 120uS 150mV 120uS 150mV 100uS 150mV 100uS 150mV 100uS 150mV 100uS 150mV 100uS 150mV 100uS Min Typ Max Notes
VO=1.8V
VO=1.5V
VO=1.2V
di/dt = 0.5A/uS; Vin = 8V; Ta = 25°C and with a 220uF electrolytic capacitor on output
VO=1.0V
VO=0.9V
Note: All specifications are typical at 8V input, full load at 25°C unless otherwise stated.
General Specifications
Parameter Efficiency VO=5.0V VO=3.3V VO=2.5V VO=1.8V VO=1.5V VO=1.2V VO=1.0V VO=0.9V Switching Frequency Output Trim Range Protection Features MTBF Dimensions (surface mount) Inches (L × W × H) Millimeters (L × W × H) Dimensions (vertical) Inches (L × W × H) Millimeters (L × W × H) Weight 8,278,709 hours 0.78 x 0.7 x 0.32 19.812 x 17.78 x 8.128 0.7 x 0.308 x 0.65 17.78 x 7.82 x 16.51 5.1g Calculated Per Bell Core TR-332 (IO = Nominal; Ta = 25°C) 91% 89% 87% 84% 83% 81% 80% 78% 200KHz 90% VO 95% 93% 91% 88% 87% 85% 84% 82% 300KHz 400KHz 110% VO Min Typ Max Notes
Measured at Vin=8V, full load
For all outputs 1
-
-
Notes: All specifications are typical at 25°C unless otherwise stated. 1. Min. of 0.9V output should be 100%Vo.
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 CONVERTERS
4.5V-13.2V Input 0.9V-5.0V/3A Output
Control Specifications
Parameter Remote On/Off Signal Low (Unit On) Signal High (Unit Off) -0.3V 2.8V 1V 13.2V Remote on/off pin open, unit on. Min Typ Max Notes
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 (Vnom) 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 =
A −B Vnom − Vadj
Module
Trim GND
Rtrimdown
Vout
RTrimUp =
Vadj
C −D − Vnom
A 61.940 53.840 9.596 3.850 3.120 1.790 0.511 X B 29.400 61.700 15.620 13.830 14.420 10.910 3.490 X
Module
Trim GND Rtrimup
Vnom 5.0 3.3 2.5 1.8 1.5 1.2 1.0 0.9
C 11.760 17.200 4.496 3.064 3.536 3.536 1.992 0.960
D 14.700 40.200 10.000 10.000 10.000 6.490 1.000 0.100
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 CONVERTERS
4.5V-13.2V Input 0.9V-5.0V/3A Output
Efficiency Data
5V module 100.0% 95.0%
3.3V module 100.0% 95.0% 90.0% Efficiency
8V 13.2V
Efficiency
90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 0.3 0.8 1.5 2.3 3.0 Output current
85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 0.3 0.8 1.5 2.3 3.0 Output current
4.5V 8V 13.2V
2.5V module 100.0% 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 0.3 0.8 1.5 2.3 3.0 Output current
1.8V module 100.0% 95.0% Efficiency
4.5V 8V 13.2v
Efficiency
90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 0.3 0.8 1.5 2.3 3.0 Output current
4.5V 8V 13.2V
1.5V module 95.0% 90.0%
1.2V module 95.0% 90.0% Efficiency 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 4.5V 8V 13.2V
4.5V 8V 13.2V
Efficiency
85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 0.3 0.8 1.5 2.3 3.0 Output current
0.3
0.8
1.5
2.3
3.0
Output current
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 CONVERTERS
4.5V-13.2V Input 0.9V-5.0V/3A Output
Efficiency Data (continued)
1.0V module 95.0% 90.0%
0.9V module 90.0% 85.0% Efficiency
4.5V 8V 13.2V
Efficiency
85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 0.3 0.8 1.5 2.3 3.0 Output current
80.0% 75.0% 70.0% 65.0% 60.0% 0.3 0.8 1.5 2.3 3.0 Output current
4.5V 8V 13.2V
Thermal Derating Curve
For all outputs.
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 CONVERTERS
4.5-13.2V Input 0.9V-5.0V/3A Output
S7AH-03E
bel
Pin Connections
Pin 1 2 3 4 5 6 7 Function Remote On/Off (option) Vin (+) Ground Vout (+) Trim (option) N/A N/A
V7AH-03E
bel
Pin Connections
Pin Function Remote On/Off (option) Vin (+) Ground Vout (+) Trim (option)
bel
1 2 3 4 5
©2004 Bel Fuse Inc. Specifications subject to change without notice. 120204
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
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