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Part: S7DB-08B330
Category:
Description: 8A Dip, Non-isolated DC/DC Converters
Company: Bel Fuse Incorporated
Datasheet: Download S7DB-08B330 datasheet File size : 223 kB
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Datasheet text preview:
NON-ISOLATED DC/DC CONVERTERS
5V Input / 1.2V 3.3V Output / 8A S7DB-08B 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-08B
Description
The Bel S7DB-08B modules are a series of non-isolated, step down DC/DC power converters that operate from a nominal 5V source. These converters are available in a range of output voltages from 1.2V to 3.3V. They are packaged in a compact, low profile, surface mount DIP package for ease of layout and space savings. 8A maximum output is also provided. Standard features include remote on/off, 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 5V 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 3.3V 2.5V 1.8V 1.5V 1.2V Input Voltage 5V 5V 5V 5V 5V Max. Output Current 8A 8A 8A 8A 8A Max. Output Power 26.4W 20W 14.4W 12W 9.6W Typical Efficiency 93% 91% 87% 86% 83% Part Number S7DB-08B330 S7DB-08B250 S7DB-08B180 S7DB-08B150 S7DB-08B120
©2002 Bel Fuse Inc.
Specifications subject to change without notice. 06.02
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-08B
NON-ISOLATED DC/DC CONVERTERS
5V Input / 1.2V 3.3V Output / 8A
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 6 6 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 Module All Symbol Vin Iin Input Current 3.3V 2.5V 1.8V 1.5V 1.2V All 50 4 30 60 0.05 4.3 3.85 8 50 100 0.07 4.5 4.49 7.2 5.6 4.6 3.9 3.0 A Min 4.5 Typical 5 Max 5.5 Units V
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
mA mA mArms mApk A2s V V
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. 06.02
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
5V Input / 1.2V 3.3V Output / 8A
POWER PRODUCTS
BP02S7DB-08B
Output Specifications
Parameter Output Voltage Set Point 1 3.3V 2.5V 1.8V 1.5V 1.2V Load Regulation 3.3V 2.5V 1.8V 1.5V 1.2V Line Regulation Regulation Over Temperature 3.3V 2.5V 1.8V 1.5V 1.2V Total Output Voltage Regulation 3.3V 2.5V 1.8V 1.5V 1.2V Output Ripple and Noise
2
Module
Symbol Vout
Min
Typical
Max
Units V
3.234 2.45 1.764 1.47 1.176
3.3 2.5 1.8 1.5 1.2
3.366 2.55 1.836 1.53 1.224 mV
4.0 4.0 3.0 3.0 3.0 2.0
10 10 8 8 8 5 mV mV
All
20 15 12 10 10
40 30 25 20 20 mV 55 45 38 33 33
All All Al l Al l Iout Ioutlim Ioutsurge 3.3V 2.5V 1.8V 1.5V 1.2V 0 10.4
30 10
50 20 8 20
mVp-p mVrms A A A2s
Output Ripple and Noise 2 Output Current Range Output DC Current Limit Shor t Circuit Surge
0.1 0.3 0.4 0.5 0.6 Ton 12 0 Cout 0
0.3 0.6 0.8 1.0 1.2 20 3 3200 ms % µF
Turn on Time Overshoot at Turn On Output Capacitance
All Al l Al l
Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated. 1. Vin = 5V, 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. 06.02
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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