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NON-ISOLATED DC/DC CONVERTERS
4.75 - 15V Input / 3.3V Output / 16A SRDC-16D330 Module
* * * * * * * * * * * Nonisolated Industry standard pinout Fixed frequency High efficiency means less power dissipation High power density Optimized for cost Remote on/off Programmable undervoltage lockout (UVLO) Over current and short circuit protection Two phase operation Non-latching over temperature shutdown protection
POWER PRODUCTS
BP06SRDC-16D330
RoHS Compliant
Description
The Bel SRDC-16D330 module is one in a series of non-isolated, DC/DC power converters that operate from a wide input range of 3V minimum to 15V maximum. This converter is available with 3.3V output. It uses a low profile, surface mount DIP package for ease of layout and space savings. 16A maximum output is also provided. Standard features include remote on/off, over current and short circuit protection, programmable UVLO and output voltage adjust. Optional features include two-wire remote sense or single-ended remote sense with a good power signal. This module also makes use of adaptive positioning to improve transient response performance. It may be used almost anywhere low voltage silicon is employed and a 4.75 to 15V source is available. Typical applications include file servers, routers, line cards and other computing and communications equipment.
Applications
* * * Telecommunications Networking Computers and peripherals
Options
* * Double-ended remote sense Power good signal and single-ended sense
Part Number Selection
Output Voltage 3.3V Input Voltage 4.75 - 15V Max. Output Current 16A Max. Output Power 53W Typical Efficiency 91% Part Number Part Number Power Good Signal & Remote Sense SRDC-16D33S Part Number Double-ended Remote Sense SRDC-16D33D
SRDC-16D330
(c)2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06
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
BP06SRDC-16D330
NON-ISOLATED DC/DC CONVERTERS
4.75 - 15V Input / 3.3V Output / 16A
Absolute Maximum Ratings
Parameter Continuous Input Voltage Output Enable Terminal Voltage1 Ambient Temperature Storage Temperature Symbol Vin Vouten Tamb Tstor Min -0.3 -0.3 0 -40 Typical Max 15 6 70 105 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. 1. The enable pin performs two functions, remote on/off and programmable under voltage lockout. The factory set UVLO point is 4.25V typical, but can be adjusted upward with the addition of a single external resistor located from the enable pin to ground. Turning the converter on and off is accomplished using an open collector/drain device as a switch. The enable pin is internally pulled up to Vin through a 11.5K resistor and the pin's logic is active high.
Input Specifications
Parameter Operating Input Voltage Input Current (Vin=5.0V) Input Current (Vin=12.0V) No Load Input Current (Vin=5.0V) No Load Input Current (Vin=12.0V) Input Reflected Ripple Current1 Input Reflected Ripple Current (P-P)1 I2t Inrush Current Transient Turn On Voltage Threshold2 Turn Off Voltage Threshold 2.8 3.1 2.9 3 Symbol Vin Iin Iin Iin Iin Min 4.75 Typical Max 15 12 5.1 250 200 50 100 0.1 Units V A A mA mA mArms mApk A2s V V
Note: Input capacitance 100F/16V, ESR = 0.03 max at 100kHz @ 25 C. 1. With simulated source impedance of 500nH, 5Hz to 20MHz. 2. UVLO is adjustable by terminating on/off pin to ground per the termination resistance table on page 6.
(c)2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06
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
4.75 - 15V Input / 3.3V Output / 16A
POWER PRODUCTS
BP06SRDC-16D330
Output Specifications
Parameter Output Voltage Set Point Load Regulation (Droop Impedance) Line Regulation Input Voltage 4.75V to 15V Line Regulation Input Voltage 12V 20% Regulation Over Temperature 0 - 70 C Output Ripple and Noise1 Output Ripple and Noise1 Output Current Range Output DC Current Limit Turn on Time Vin to Vout or on/off to Vout Overshoot at Turn On Output Capacitance Transient Response 2 (Vin=5.0V) V 50% to 100% of Max Load Settling Time V 100% to 50% of Max Load Settling Time Transient Response 2 (Vin=12.0V) V 50% to 100% of Max Load Settling Time V 100% to 50% of Max Load Settling Time Ts Ts 120 100 120 100 150 120 150 120 mV s mV s Ts Ts 150 100 150 100 200 120 200 120 mV s mV s Cout 100 Iout Ioutlim Ton 8 0 10 1 2200 % F 0 18 Symbol Vout Rout Min 3.29 2 Typical 3.35 2.5 Max 3.4 3 Units V m mV 15 25 mV 3 10 mV 10 25 10 25 40 20 16 22 mVp-p mVrms A A ms
Note: All specifications are typical at nominal input, full load at 25 C unless otherwise stated. 1. 0 - 20MHz BW, 0.1F ceramic cap on output. 2. di/dt = 1A/1S, Ta = 25 C with a 560F oscon cap on output.
(c)2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 3
POWER PRODUCTS
BP06SRDC-16D330
NON-ISOLATED DC/DC CONVERTERS
4.75 - 15V Input / 3.3V Output / 16A
General Specifications
Parameter Efficiency1 (Vin=5.0V) Efficiency2 (Vin=12.0V) Switching Frequency Output Voltage Trim Range3 Remote Sense Compensation (when option specified) Weight 16 Symbol Fsw Min 90 87.5 495 90 Typical 91 89 550 605 110 300 Max Units % % kHz % mV
g
1. Vin=5V, full load and Ta=25 C. 2. Vin=12V, full load and Ta=25 C. 3. See graph on page 6.
Control Specifications
Parameter Remote On/Off Open Circuit Voltage (Vin=5.0V) Remote On/Off Open Circuit Voltage (Vin=12.0V) Remote On/Off Impedance Limitation (pin pulled up to +Vin) Signal Low (Unit Off) Signal High (Unit On) Power Good Levels (when option specified) Signal Low Current Sink Signal High (signal is open collector) Under Voltage Threshold Vout rising Under Voltage Threshold Vout falling Vpg 0.18 0.4 4 V mA V 5 V 3.04 V 2.97 Symbol Vouten Min Typical Max 2.1 Units V
Vouten Renable
5.1
V k
11.5 -0.3 1.5 0.3 5.5 V V
Note: On/off pin designed to work with an open collector/drain switch.
(c)2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 4
NON-ISOLATED DC/DC CONVERTERS
4.75 - 15V Input / 3.3V Output / 16A
POWER PRODUCTS
BP06SRDC-16D330
Efficiency Data
Module 3.30V 95% 90% 85% 80% 75% 1.6 4.0 8.0 Output Current 12.0 16.0 5.0V 12V
Efficiency
(c)2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 5
POWER PRODUCTS
BP06SRDC-16D330
NON-ISOLATED DC/DC CONVERTERS
4.75 - 15V Input / 3.3V Output / 16A
Termination Resistance
Termination Resistance Open Circuit 21K 5.90K 4.99K 3.06K 2.61K 2.10K 2.05K Rising Vin UVLO 3.93V 4.50V 6.06V 6.48V 8.10V 9.09V 10.54V 10.72V Falling Vin UVLO 3.73V 4.33V 5.86V 6.24V 7.65V 8.56V 9.55V 9.69V
UVLO
Output Voltage Trim Range
(c)2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 6
NON-ISOLATED DC/DC CONVERTERS
4.75 - 15V Input / 3.3V Output / 16A
POWER PRODUCTS
BP06SRDC-16D330
Ripple and Noise
Ripple and noise at full load and 12.0Vdc input, and Ta=25 C
Ripple and noise at full load and 12.0Vdc input, and Ta=25 C with 560 F external cap
(c)2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 7
POWER PRODUCTS
BP06SRDC-16D330
NON-ISOLATED DC/DC CONVERTERS
4.75 - 15V Input / 3.3V Output / 16A
Transient Response
Transient response: di/dt = 1.0A/S
Vout=3.3V 50% to 100% load transients at 12.0V input and Ta=25 C
Vout=3.3V 100% to 50% load transients at 12.0V input and Ta=25 C
Transient response: di/dt = 1.0A/S, external load capacitance 560F
Vout=3.3V 50% to 100% load transients at 12.0V input and Ta=25 C
Vout=3.3V 100% to 50% load transients at 12.0V input and Ta=25 C
(c)2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 8
NON-ISOLATED DC/DC CONVERTERS
4.75 - 15V Input / 3.3V Output / 16A
POWER PRODUCTS
BP06SRDC-16D330
Thermal Considerations
Derating Curve VIN = 12V 18 16 14 100LFM Natural Convection 200LFM
Output Current (A)
12 10 8 6 4 2 0
0 10 20 30 40 50 60 70
Ambient Temperature, Ta (C) Output Current vs. Local Ambient Temperature and Air Velocity
Derating Curve VIN = 5V (and 3.3V where applicable) 18 16 14 100LFM Natural Convection 200LFM
Output Current (A)
12 10 8 6 4 2 0
0
10
20
30
40
50
60
70
Ambient Temperature, Ta (C) Output Current vs. Local Ambient Temperature and Air Velocity
(c)2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 9
POWER PRODUCTS
BP06SRDC-16D330
NON-ISOLATED DC/DC CONVERTERS
4.75 - 15V Input / 3.3V Output / 16A
Mechanical
0.100 [2.54] 2.013 [51.13] max
0.090 [2.29]
4 3 2 9 8 7 6 5
0.200 [5.08]
0.400 [10.17] 0.200 [5.08] 0.600 [15.23]
0.800 1.020 [20.33] [25.91] max
0.120 [3.05]
1
2.125 [53.98] 2.305 [58.55] Recommended PCB Pad Layout
0.300 [7.62]
0.070 [1.78]
2.265 [57.52] max
0.400 [10.17] max
Dimensions are in inches [millimeters]. Standard dimension tolerance is 0.005 [0.13] unless otherwise noted.
Pin 1 2 31 42 5 6 7 8 9
Function Control Ground On/Off Control No Connection No Connection +Vo Trim Power Ground Power Ground +Vin
1. Pin 3 not used on module S7DC-16D330, used for - sense on S7DC-16D33D and used for power good signal on the S7DC-16D33S module. 2. Pin 4 not used on module S7DC-16D330, used for + sense on both the S7DC-16D33S and S7DC-16D33D modules.
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 240C.
(c)2006 Bel Fuse Inc. Specifications subject to change without notice. 06.06
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
page 10

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