SP6121 Demo Board Manual
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- Drusilla Sharp
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1 SP6121 Demo Board Manual FEATURES DC/DC Synchronous Buck Converter for Distributed Power Systems. SIP design provides complete, ready to use solutions for : Vin= V Vout= V I out=8.0a (no air flow required). High Efficiency: 86 to 95% Excellent Transient Response Small Size: 550X2500mils, vertical mounting Power Good output DESCRIPTION The SP6121 DEMO Board is designed to help the user evaluate the performance of the SP6121 for use in a distributed power system. The SP6121 operates over an input voltage range of 3.0V to 7.0V, and can deliver efficiencies as high as 95%. The SP6121 Demo Board is a complete Power Supply ready for use in applications where high stability, excellent transient response, high efficiency and power density are critical concerns. The Demo Board, a completely assembled and tested PCB with surface mount components, has been designed as a SIP board that can be vertically mounted in an existing application. Rev 7/25/01
2 BOARD SCHEMATIC and LAYOUT The SP6121 Demo Board is configured as a highly efficient, synchronous DC/DC buck converter. It has been optimized to deliver excellent thermal and EMI performance. FIGURE 1. SP6121 Demo Board layer 1, top view. FIGURE 2. SP6121 Demo Board, layer 4, top view. The SP6121 Demo Board has four, 2 oz copper layers that provide improved noise immunity and minimize power losses. Components are placed on the top and bottom sides of the PCB as shown on Figures 1and 2. The row of pads (1 to 11) at the edge of the board is designed for solderable pins such as the NAS Interplex forked pins (17 x 42 mil cross section). Pin connections to the demo board circuit are indicated in Figure 3. (Pad 11 is a no connect.) Rev 7/25/01 2
3 U2 R5 1 RESET NC 8 Vin 7,8 2 Reset PFO MR PFI 6 C5 C6 4 VCC GND 5 1.0uF 47uF SP708 R6 5.0 CERAMIC C10 0.1uF C11 56pF +3.0V-7.0 V POWER OK Q1 C1 2.2uF C2 56pF R1 C3 1 U1 Vcc PDRV 8 2 GND NDRV VFB COMP ISET ISENSE 6 5 SP6121 R2 2.3K FDS6375 Q2 FDS6690A D1 L1 10 TRIM 1.6uH R3 R4 C7 0.1uF C8 470uF 1,2,3,4 V out C9 470uF 5,6 GND 2.5V 3.9nF FIGURE 3. SP6121 Demo Board Schematic. Demo Board Component Selection The input capacitor, C6, can be either a ceramic or tantalum capacitor. Its choice depends on the user s system input voltage transient. If the highest possible efficiency is required, a ceramic 47uF capacitor is recommended. The demo board circuit includes a Schottky Diode, D1, across the low side switch. It prevents Q2 s internal body diode from turning on and dissipating power during the nonoverlap time when both Q1 and Q2 are off. At a 500kHz switching frequency, these losses would decrease overall efficiency by %. The output voltage is set by the resistor divider: R3/R4. The output voltage is calculated using the following: R3 VOUT = + 1 VREF, R4 where V REF = 1.25V. For the SP6121 demo board where V OUT = 2.5V. Choosing R4 equal to, then R3 = R4 = The considerations, tradeoffs and calculations required to select the power MOSFETs (Q 1, Q 2 ), the inductor (L 1 ), the input and output capacitors (C 1, and C6, C 8, and C 9, Rev 7/25/01 3
4 respectively), and the current set resistor (R 2 ), are discussed in detail in the SP6121 data sheet. USING THE DEMO BOARD To use the Demo Board, connect the input voltage, V IN to pins 7 and 8 and a ground, GND, to pins 5 and 6. Connect the load to pins 1, 2, 3, and 4. Pin 9 provides a logic level power good signal and Pin 10 is used for trimming the output voltage. When measuring efficiency, care must be taken to keep leads between measuring devices, the power supply (V IN ) and the demo board as short as possible and the measurement probes should be connected to pins 4 (V OUT ) and 7 (V IN ). The SP708 power management controller IC (U 2 ) on the demo board is used to generate a Power Good signal. On this demo board, when the voltage on the pin 6 (PFI) of U2 is 1.25V or less, U2 s pin 7 (PFO) goes LOW. Pin 6 can be connected directly, or through a resistor divider, to V OUT or V IN. DEMO BOARD CHARACTERISTICS Efficiency (%) I load (A) C6=47uF, 3.3/2.5V C6=47uF,5.0/1.9V C6=330uF,3.3/2.5V C6=330uF,5.0/1.9V FIGURE 4. EFFICIENCY vs. I load. Vout=2,5V 0.02 Vout Tolerance (%) I load=5.0a I load=3.0a Vin (V) FIGURE 5. Line Regulation. Vout=2.5V Rev 7/25/01 4
5 V out Tolerance (%) I LOAD (A) FIGURE 6. Load Regulation. Vout=2.5V Vin=3.3V Vin=5.0V FIGURE 7. Load Step Response. I load step 0.4A to 6.0A. CH1-Vout; CH4-I load. Vin=5.0V, Vout=2.5V FIGURE 8. Output Ripple. Vin=5.0V,Vout=2.5V, Iload=6.0A Rev 7/25/01 5
6 DEMO BOARD RECOMMENDED PARTS: No. Qty Part Manuf. Manuf. P/N / PACKAGE 1 1 C1 Capacitor Ceramic 2.2uF/16V/X7R/10% Any Approved Package C2,C11 Capacitor Ceramic 56pF/50V/X7R/10% "-" C3 Capacitor Ceramic 3.9nF/50V/X7R/10% "-" C5 Capacitor Ceramic 1uF/16V/X7R/10% "-" C6 Capacitor Tantalum 220uF/10V/10% "-" 7343 or or Capacitor Tantalum 330uF/10V/20% Capacitor Ceramic 47uF/X7R/10V/10% "-" C7,C10 Capacitor Ceramic 0.1uF/16V/X7R/10% "-" C8,C9 Capacitor Tantalum 470uF/10V/10% "-" D1 Diode Schottky 30V/2.0A "-" Package DO-214AA 9 1 L1 Inductor 1.6uH/15A/3.3 mohm PANASONIC ETQ-P6F1R6SFA 10 1 Q1 P-MOSFET 20V/8.0A/32mOhm FAIRCHILD FDS6375/ SO Q2 N_MOSFET 30V/13A/10mOhm FAIRCHILD FDS6690A/ SO R1,R5 Resistor /63mW/5% Any Appoved Package R2 Resistor 2.1K/63mW/5% "-" R4,R3 Resistor /63mW/1% "-" R6 Resistor 10 Ohm/0.63mW/5% "-" U1 SYNCH. BUCK CONTROLLER SIPEX SP6121/SO U2 Low Power Microprocessor SIPEX SP708/ usoic-8 Supervisory Circuits Pins 17X42 mils Cross Section NAS Interplex Rev 7/25/01 6
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![Notes: Note1: values at nominal input voltage and full load. 8.5VDC 5V 8V. Open, Efficiency vs. Input Voltage. Efficiency [%]](/thumbs/82/86441596.jpg "Notes: Note1: values at nominal input voltage and full load. 8.5VDC 5V 8V. Open, Efficiency vs. Input Voltage. Efficiency [%]")
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FEW SERIES 0~0W WIDE RANGE FEATURES 0~0W DIL PACKAGE INDUSTRY STANDARD PACKAGE 9-8V,8-V,-7V,9-V,8-7V WIDE RANGE REGULATED UVLO & OVLO HIGH EFFICIENCY UL 9V-0 PACKAGE MATERIAL CUSTOM SOLUTIONS AVAILABLE
GENERAL DESCRIPTION. FEATURES 6A step-down power module
XR7906 April 06 GENERAL DESCRIPTION The XR7906 is part of a family of 40V synchronous step-down power modules combining the controller, drivers, inductor, passive components and MOSFETs in a single package
NMA 5V, 12V & 15V Series Isolated 1W Dual Output DC/DC Converters
NMA 5V, 12V & 15V Series FEATURES RoHS compliant Effi ciency up to 80% Power density up to 0.85W/cm 3 Wide temperature performance at full 1 Watt load, 40 C to 85 C Dual output from a single input rail
SELECTION GUIDE. Order code Voltage(VDC) NTE0303XMC NTE0305XMC
1W, FIXED INPUT, ISOLATED SINGLE OUTPUT SMD DC-DC CONVERTER FEATURES Footprint over pins 1.37cm 2 Short Circuit Protection(automatic recovery) I/O isolation voltage 1000VDC Operating Temperature: -40 ~+85
SL Series Application Notes. SL Series - Application Notes. General Application Notes. Wire Gage & Distance to Load
Transportation Products SL Series - Application Notes General Application Notes vin 2 ft. 14 AWG The SL family of power converters, designed as military grade standalone power converters, can also be used
NON-ISOLATED DC/DC CONVERTERS
NON-ISOLATED DC/DC CONVERTERS 3.3V Input / 5V /.5A POWER PRODUCTS S7AH-02C / V7AH-02C Modules Nonisolated Compact, low profile surface mount package Fixed frequency* High efficiency means less power dissipation
DPX30-xxSxx DC-DC Converter Module 9.5 ~ 18 VDC and 18 ~ 36 VDC and 36~ 75 VDC input; 3.3 to 28 VDC Single Output; 30 Watts Output Power
DC-DC Converter Module 9.5 ~ 18 VDC and 18 ~ 36 VDC and 36~ 75 VDC input; 3.3 to 28 VDC Single Output; 30 Watts Output Power FEATURES NO MINIMUM LOAD REQUIRED 1600VDC INPUT TO OUTPUT ISOLATION SCREW TERMINALS
HAE S 05 - P HS Series Name Input Output Output Ctrl and Assembly Option Voltage Quantity Voltage Pin Options
Automation Datacom IPC Industry Measurement Telecom Automobile Boat Charger Medical PV Railway PART NUMBER STRUCTURE DIP Type: HAE100-48 S 05 - P HS Series Name Input Output Output Ctrl and Assembly Option
S Analog/PWM Input-Charge-Current Setting S Up to 1.2MHz Switching Frequency S Programmable Charge Current Up to 4A S Monitors Input/Outputs
19-4996; Rev 0; 10/09 General Description The MAX17015 evaluation kit (EV kit) is a complete, fully assembled and tested surface-mount PCB that features the MAX17015B highly integrated, multichemistry
SGM4056 High Input Voltage Charger
GENERAL DESCRIPTION The SGM456 is a cost-effective, fully integrated high input voltage single-cell Li-ion battery charger. The charger uses a CC/CV charge profile required by Li-ion battery. The charger
AMS1117 1A Adjustable / Fixed Low Dropout Linear Regulator
1A Adjustable / Fixed Low Dropout Linear Regulator Description The is a series of low dropout voltage regulators which can provide up to 1A of output current. The is available in six fixed voltage, 1.2,
2:1 Wide Input Voltage Range 1.6kVDC Isolation UL Certified Efficiency up to 90% Six-Sided Continuous Shield Available as Power Module (RPM30-E)
Features Regulated Converters 2:1 Wide Input Voltage Range 1.6kV Isolation UL Certified Efficiency up to % Six-Sided Continuous Shield Available as Power Module (RPM30-E) Description The series / converters
(typ.) (Range) Input Specifications Parameter Model Min. Typ. Max. Unit 12V Input Models Input Surge Voltage (100ms.
FEATURES Smallest Encapsulated 50W! Package Size 2.0 x 1.0 x 0.4 Wide 2:1 lnput Range Excellent Efficiency up to 92% Over-Temperature Protection I/O-isolation Voltage 1500VDC Remote On/Off Control Shielded
Advance Data Sheet: Metamere iac Series Non-isolated SMT Power Module
Metamere iac Series DC/DC Power Modules.-1V Input, 1A Output Surface Mount Power Module The iac Series offers an 8W power module in the industry s standard surface-mount footprint. The iac 1Vin series
5A LOW DROPOUT POSITIVE REGULATOR
5A LOW DROPOUT POSITIVE REGULATOR Features Output Current : 5A Maximum Input Voltage : 12V Adjustable Output Voltage or Fixed 1.8V, 3.3V, 5.0V Current Limiting and Thermal Protection Standard 3Pin Power
HAE S 05 - P TH HS PART NUMBER STRUCTURE Page 1. P-DUKE Technology Co., Ltd.
Automation Datacom IPC Industry Measurement Telecom Automobile Boat Charger Medical PV Railway PART NUMBER STRUCTURE HAE100-48 S 05 - P TH HS Series Name Input Output Output Ctrl and Through hole Assembly
2:1 Wide Input Voltage Range 1.6kVDC Isolation UL Certified Efficiency up to 91% Six-Sided Continuous Shield Available as Power Module (RPM60-G)
Features Regulated Converters 2:1 Wide Input Voltage Range 1.6kVDC Isolation UL Certified Efficiency up to 91% Six-Sided Continuous Shield Available as Power Module (RPM-G) Description The series DC/DC
MAX16929 Evaluation Kit Evaluates: MAX16929
19-5838; Rev 0; 4/11 MAX16929 Evaluation Kit General Description The MAX16929 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB that provides the voltages and features required
Packaging (1) Package
Features Switching Regulator RoHS / conform (% lead free) High reflow temperature SMD package Adjustable output voltage Short circuit protection, thermal shutdown Remote ON/OFF control very low shutdown
A4063. AiT Semiconductor Inc. APPLICATION ORDERING INFORMATION TYPICAL APPLICATION
DESCRIPTION The is a 2A Li-Ion battery switching charger intended for 5V adapters. Low power dissipation, an internal MOSFET and its compact package with minimum external components requirement makes the
PL10S-12 Non Isolated DC/DC Converters Long Form Datasheet
PL10S12 Non Isolated DC/DC Converters Features Synchrono Rectification NonIsolated Fixed Frequency Nominal Input Voltage Range from (512V) Output Voltage Adjtable with the Trim Function (0.9 to 5V) Current
Note1: Typical values at nominal input voltage and full load. 39VDC. Efficiency vs. Input Voltage. Efficiency [%]
![Note1: Typical values at nominal input voltage and full load. 39VDC. Efficiency vs. Input Voltage. Efficiency [%]](/thumbs/80/80466451.jpg "Note1: Typical values at nominal input voltage and full load. 39VDC. Efficiency vs. Input Voltage. Efficiency [%]")
Features ICE Technology* Description +115 C Maximum Case Temperature -45 C Minimum Case Temperature Baseplate Case Style 2250VDC Isolation Wide 4:1 Input Voltage Range EN-50155 and EN-50121-3-2 Certified
WATT MBH SERIES DC/DC CONVERTERS
Features Delivers up to 2100 Watts Efficiency up to 97 Groundbreaking low profile compact 9.0 L x 6.5 W x 1.25 H package Only 3.3 lbs No minimum load required Fixed frequency operation at 400 khz Fully