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Part: S7DB-12C120
Category:
Description: 12A Dip, Non-isolated DC/DC Converters
Company: Bel Fuse Incorporated
Datasheet: Download S7DB-12C120 datasheet File size : 223 kB
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Datasheet text preview:
NON-ISOLATED DC/DC CONVERTERS
3.3V Input / 1.2V 2.5V Output / 12A S7DB-12C Series
· · · · · · · · · · Nonisolated Compact, low profile surface mount package Fixed frequency High efficiency means less power dissipation Excellent thermal performance Optimized for cost Remote on/off Undervoltage lockout (UVLO) Over current and short circuit protection Remote sense
POWER PRODUCTS
BP02S7DB-12C
Description
The Bel S7DB-12C modules are a series of non-isolated, step down DC/DC power converters that operate from a nominal 3.3V source. These converters are available in a range of output voltages from 1.2V to 2.5V. They are packaged in a compact, low profile, surface mount DIP package for ease of layout and space savings. 12A maximum output is also provided. Standard features include remote on/off, remote sense, over current and short circuit protection, UVLO and output voltage adjust. These products may be used almost anywhere low voltage silicon is employed and a 3.3V source is available. Typical applications include file servers, routers, line cards and other computing and communications equipment.
Applications
· · · · Distributed power architectures Data networking equipment Telecommunications Computers and peripherals
Part Number Selection
Output Voltage 2.5V 1.8V 1.5V 1.2V Input Voltage 3.3V 3.3V 3.3V 3.3V Max. Output Current 12A 12A 12A 12A Max. Output Power 30W 21.6W 18.0W 14.4W Typical Efficiency 91% 87% 84% 82% Part Number S7DB-12C250 S7DB-12C180 S7DB-12C150 S7DB-12C120
©2002 Bel Fuse Inc.
Specifications subject to change without notice. 10.02
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 · Tel 201-432-0463 · Fax 201-432-9542 · www.belfuse.com page 1
POWER PRODUCTS
BP02S7DB-12C
NON-ISOLATED DC/DC CONVERTERS
3.3V Input / 1.2V 2.5V Output / 12A
Absolute Maximum Ratings
Parameter Continuous Input Voltage Output Enable Terminal Voltage Ambient Temperature Storage Temperature Symbol Vin Vouten Tamb Tstor Min -0.3 -0.3 -40 -55 Typical Max 4 4 85 100 Unit V V °C °C
Note: Use beyond the maximum ratings may cause a reliability degradation of the DC/DC converter or may permanently damage the device.
Input Specifications
Parameter Operating Input Voltage Input Current 2.5V 1.8V 1.5V 1.2V No Load Input Current Remote Off Input Current Input Reflected Ripple Current1 Input Reflected Ripple Current (P-P)1 I2t Inrush Current Transient Turn On Voltage Threshold Turn Off Voltage Threshold All All All All Al l All 10 25 80 0.1 2.85 2.3 Module All Symbol Vin Iin 12 9.5 8.2 6.7 100 20 50 160 0.2 mA mA mArms mApk A2s V V Min 3 Typical 3. 3 Max 3.6 Units V A
Note: Input capacitance two 270µF/10V, ESR = 0.018 max at 100kHz @ 25° C. 1. With simulated source impedance of 500nH, 5Hz to 20MHz.
©2002 Bel Fuse Inc.
Specifications subject to change without notice. 10.02
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 · Tel 201-432-0463 · Fax 201-432-9542 · www.belfuse.com page 2
NON-ISOLATED DC/DC CONVERTERS
3.3V Input / 1.2V 2.5V Output / 12A
POWER PRODUCTS
BP02S7DB-12C
Output Specifications
Parameter Output Voltage Set Point 1 2.5V 1.8V 1.5V 1.2V Load Regulation Line Regulation Regulation Over Temperature 2.5V 1.8V 1.5V 1.2V Total Output Voltage Regulation 2.5V 1.8V 1.5V 1.2V Output Ripple and Noise 2 2.5V 1.8V 1.5V 1.2V Output Ripple and Noise 2 2.5V 1.8V 1.5V 1.2V Output Current Range Output DC Current Limit Shor t Circuit Surge 2.5V 1.8V 1.5V 1.2V Turn on Time Overshoot at Turn On Output Capacitance All All All Cout 0 Ton All All Iout Ioutlim Ioutsurge 0.1 0.2 0.5 0.6 10 0 0.2 0.4 1 1.2 20 3 4800 ms % µF 0 15.6 15 10 10 10 30 25 25 25 12 30 A A A 2s 55 50 40 40 100 100 100 100 mVrms 53 42 38 33 mVp-p 19 13 11 9 38 27 23 18 mV All All Module Symbol Vout 2.450 1.764 1.470 1.176 2.500 1.800 1.500 1.200 3.0 2.0 2.550 1.836 1.530 1.224 10 5 mV mV mV Min Typical Max Units V
Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated. 1. Vin = 3.3V, Iout = full load, Ta = 25° C. 2. 0 - 20MHz, 1µF ceramic cap and 10µF aluminum cap on output.
©2002 Bel Fuse Inc.
Specifications subject to change without notice. 10.02
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 · Tel 201-432-0463 · Fax 201-432-9542 · www.belfuse.com page 3
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