3.3V input, 2.5V output, 10A; input, 3.3V output, High output 3.3

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3.3V input, 2.5V output, 10A; input, 3.3V output, High output 3.3

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DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V 1.85Vout
3.3V input, 2.5V output, 10A; input, 3.3V output,
High output 3.3V ±10%, ±10% Input Regulation ±0.4% line load Industry standard configuration High efficiency Remote Sense, Trim Enable Short Circuit protection MTBF million hours Source Sink Output Current
This product fuse protected. User responsible providing system protection. Consult factory application information.
Specifications Input Specifications Input voltage range External input capacitor Output Specifications Standard output voltages 0.8V 0.9V 1.2V 1.5V 1.8V 2.1V 2.5V Output current Load regulation Line regulation External output capacitor Short circuit protection General Specifications Enable Efficiency Isolation Switching frequency Approvals Standards Protection Operating Temperature **** Storage Temperature Weight MTBF ON-open OFF-high (max 15V) typical Non-isolated 300kHz 94V-0 Fusing -40°C 70°C -40°C 85°C (8.5 million hours efficiency curves Fixed Unit fused. 70°C (see also derating curves) Non-condensing PRISM 50°C ambient 1.0V 1.2V 1.5V 1.8V 2.1V 2.5V 3.3V Standard setpoint accuracy varies from ±1.5% output voltage range, high end. (see chart Contact factory tighter tolerances. note trimming different voltages. 70°C (see also derating curves) load Over specified input voltage range also note 3.3V 10%* 5.0V Minimum with adequate ripple current rating Measured +Vin also note charts S111-03 S111-05
±0.5% ±0.5% >150µF with maxESR 100m 70°C) -40°C)
specifications typical nominal input, full load 25°C unless otherwise stated. Pull below 0.4V sink greater than leave open enable SIP; pull above exceed 15V) source greater than disable SIP. **** output capacitors must meet requirement over operating temperature range.
1150 Eglinton Avenue East Toronto, Ontario 1-866-740-1232
www.cdtechno-cps.com
4607 S.E. International Milwaukie, Oregon 97222 1-971-206-2800
DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V 1.85Vout
3.3V input, 2.5V output, 10A; input, 3.3V output,
Part Number Designations
S111
Model Number Input Voltage 3.3V Mechanical Options Vertical Side Pins (Standard) Consult Factory Other Options Length .145 inch (Standard) Consult Factory Other Options Feature Options* Remote Sense, Trim Enable (Standard) Consult Factory Other Options Output Voltage X.YZ Volts Point Tolerance Factory Standard (See Initial Setpoint Tolerances) present only selected features.
Initial Setpoint Tolerances
Initial setpoint tolerance 3.3V input SIP's Initial setpoint tolerance input SIP's
Output Voltage
Output Voltage
Assignments*
CONNECTOR FUNCTION VOUT VOUT Remote Sense (Empty Optional) VOUT Ground CONNECTOR FUNCTION Ground Empty Trim Enable
present only when feature selected.
1150 Eglinton Avenue East Toronto, Ontario 1-866-740-1232
www.cdtechno-cps.com
4607 S.E. International Milwaukie, Oregon 97222 1-971-206-2800
DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V 1.85Vout
3.3V input, 2.5V output, 10A; input, 3.3V output,
Outline Drawings
2.55 (64.8) 2.430
(12.7) .540 (13.72)
Topside
Length .155 Option
NOTE .100 (2.54) 1.800 (45.72) 1.400 (35.56) 1.800 (45.72) (7.1) .025 .025 (0.64 0.64)
S111-03 Mechanical Options
.435 .255 .110
S111-05 Mechanical Options
.390 .245 .072
Mech Option (Standard)
Mech Option (Standard)
Dimensions inches (millimeters). Tolerances: (unless otherwise noted) Inches .020 .XXX .010 Pin: .002 Millimeters 0.25 0.05
present only feature selected. Recommended Customer Hole Size 0.046 ±.003
1150 Eglinton Avenue East Toronto, Ontario 1-866-740-1232
www.cdtechno-cps.com
4607 S.E. International Milwaukie, Oregon 97222 1-971-206-2800
DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V 1.85Vout
3.3V input, 2.5V output, 10A; input, 3.3V output,
Efficiency Curves 25°C
1150 Eglinton Avenue East Toronto, Ontario 1-866-740-1232
www.cdtechno-cps.com
4607 S.E. International Milwaukie, Oregon 97222 1-971-206-2800
DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V 1.85Vout
3.3V input, 2.5V output, 10A; input, 3.3V output,
Derating Curves
derating needed 70°C with airflow higher.
Extended operation greater than rated current degrade reliability.
1150 Eglinton Avenue East Toronto, Ontario 1-866-740-1232
www.cdtechno-cps.com
4607 S.E. International Milwaukie, Oregon 97222 1-971-206-2800
DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V 1.85Vout
3.3V input, 2.5V output, 10A; input, 3.3V output,
Ripple Current
Approximate ripple current ratings required input bulk capacitor
1150 Eglinton Avenue East Toronto, Ontario 1-866-740-1232
www.cdtechno-cps.com
4607 S.E. International Milwaukie, Oregon 97222 1-971-206-2800
DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V 1.85Vout
3.3V input, 2.5V output, 10A; input, 3.3V output,
Resistor Trim Equations
best results, trim range should exceed +/-20% initial output voltage factory (Vset). trim down 0.6V, units with initial output voltage 1.2V used.
Trim raising output voltage using resistor from Trim round. 3.3Vin 5Vin
Rtrim
1992 (Vout Vset
Rtrim
Vset Vout (Vset Vout
Vout 2.5V
Vout Vset trim approaches
Trim lowering output voltage using resistor from external voltage reference Vout pins. 3.3Vin 5Vin
Rtrim
Vout 0.5V
Vref (Vout Vset
Rtrim
Vset Vout Vref Vset Vout
Vout Vset (Vref trim approaches
here: Vout desired output voltage. Vset output voltage setpoint (output voltage without trim Vref reference voltage trim resistor when trim down. using Vout this purpose, then Vref Vout. trim resistance value trim resistor (ohm
1150 Eglinton Avenue East Toronto, Ontario 1-866-740-1232
www.cdtechno-cps.com
4607 S.E. International Milwaukie, Oregon 97222 1-971-206-2800
DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V 1.85Vout
3.3V input, 2.5V output, 10A; input, 3.3V output,
External Capacitance Products
products require external capacitance placed system board that will designed into. This application note attem explain translate datasheet inform ation apply system level board design. Input Capacitance Although input capacitance value critical, input capacitors capable storing fairly large ounts energy. This eans, exam ple, ceram capacitors would inappropriate. prim criteria, though, choosing input capacitors ripple current rating. datasheet contains chart showing ripple current output current output power). system designer determ ines axim output current required from SIP. Based that ber, chart will show corresponding ripple current rating designer needs plan when choosing input capacitors. Exam using S111-03 output: designer knows S111 output current will axim application. ripple current chart (3.3V input) shows rating required input capacitor. Also known that capacitor designer hopes ripple current rating Therefore, designer chosen capacitors parallel total ripple current capability This will adequately cover need. Output Capacitance only requirem capacitance value basic circuit stability SIP. That value specified datasheet- usually 150µF. other consideration output capacitor total (Equivalent Series Resistance). with ripple current, every capacitor specified ESR. using ultiple capacitors parallel, this added exactly like parallel resistors. Therefore, capacitors less ESR. datasheet specifies axim total necessary optim perform ance. designer also choose capacitance reduce output ripple noise. Exam ple: datasheet specifies axim 100m output capacitance. system designer wants capacitor with specified 130m Since 130m than needed 100m capacitors used parallel total effective Generally, good, bulk capacitors recom ended both input output capacitance that fewer capacitors needed since board real estate usually portant factor today's designs.
1150 Eglinton Avenue East Toronto, Ontario 1-866-740-1232
www.cdtechno-cps.com
4607 S.E. International Milwaukie, Oregon 97222 1-971-206-2800
DC/DC Converter DC/DC Converter Programmable, Single Output, 1.1V 1.85Vout
3.3V input, 2.5V output, 10A; input, 3.3V output,
Impact Output Voltage Ripple Transient Response
custom er's application uires very output voltage ripple very output voltage overshoot undershoot during transients, then guidelines previously show need exceeded good layout practices becom andatory. using four capacitors, each having output voltage ripple decreased pk-pk 1.2V output during transient load condition (load current steps from 100% back, sec) output voltage does overshoot undershoot than 100m fast deep transient loads expected, input capacitor becom portant ell, especially from input voltage source. apacitors having 2000 bined lower than ight needed. ractical results heavily depend physical layout specific load conditions. critical applications custom encouraged consult with anufacturer.
Technologies, Inc. reserves right alter improve specification, internal design manufacturing process time, without notice. Please check with your supplier visit website ensure that have current complete specification your product before use. Technologies, Inc. 2004 part this publication copied, transmitted, stored retrieval system reproduced including, limited photography, photocopy, magnetic other recording means, without prior written permission from Technologies, Inc. Instructions available from: www.cdtechno-cps.com
1150 Eglinton Avenue East Toronto, Ontario 1-866-740-1232
www.cdtechno-cps.com
4607 S.E. International Milwaukie, Oregon 97222 1-971-206-2800

3.3V input, 2.5V output, 10A; input, 3.3V output, High output 3.3

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