SP6128AB SIPEX | Alldatasheet
Document overview
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Technical content
- 1 - demo board for SP6128A, a synchronous buck controller Non-Isolated DC-DC SIP Modules: 3.0Vdc-5.5Vdc In, 0.9Vdc-3.3Vdc out, 10A FEATURES: DESCRIPTION: The SP6128A demo board design is non-isolated dc-dc SIP module with a very high efficiency at 10A output. It has smallest size comparing with the current market products with the same power range and low EMI. Standard features include remote ON/OFF with the customer selectable positive and negative control, output voltage adjustment, soft start, over current and over temperature protection. This demo board proves that SP6128A is a high performance, but yet easy to use synchronous buck controller. It simplifies low voltage DC to DC power supply designs without compromising performance. High Efficiency: 94.5% at 3.3V output,10A Small size and very low profile 43.2mm×7.25mm×13.97mm (1.7in×0.285in×0.55in)
- 3V to 5.5V input voltage All ceramic capacitors design Negative or Positi ve remote On/Off Thermal shut down protection Low output ripple max 20mV Output voltage adjustable with the trim function Low EMI noise Short circuit and over current protection using Hiccup mode and auto-restart Build in UVLO function Wide operation temperature range -40 C° to +85 C° ±0.1% line regulation & ±0.3% load regulation -40 C° to +85 C°
- workstations , servers
- computer and its peripheral
- distribution power architecture
- telecommunications equipment
- data processing and storage equipment
- LANs and WANs
- high performance data processing IC SCHEMATIC: PCB Layout:
short circuit protection tested at with Cin=100uF, Tantalum Figure11: transient response, Ch1:Vout Ch2:Iout 2A/div load change At 5A/us from 0.4A to 5A @ Vin=3.3V Figure12: transient response, Ch1:Vout Ch2:Iout 2A/div load change At 5A/us from 0.4A to 5A @ Vin=5V Figure13: short circuit Iin RMS value Ch2: Vin, Ch4 Iin 2A/div Figure14: short circuit Iin RMS value Ch2: Vin, Ch4 Iin 2A/div
Parameter Symbol Min Typ Max Units Operating input voltage Vin 2.9 6 Vdc Input voltage ripple Vinripple 250 300 mVp-p Output voltage set point accurate ±1.5 % Output regulation Line regulation Load regulation ±0.1 ±0.3 Output ripple&noise 15 25 mVp-p Output current Io 10 A Output current limit point 16 A Over temperature protection 110 120 C° Negative remote control: Logic low-module on Logic high-module off Vrem Irem Vrem Irem -0.7 0.3 100 2.4 0.5 V µ A V mA Positive remote control: Logic high-module on Logic low-module off Vrem Irem Vrem Irem 2.4 -0.7 0.8 V mA V µ A Turn-on time 5 ms Short circuit input current(RMS) 0.5 A Output voltage trim range -10 +10 % Vout ,nom FEATURE DISCRIPTION Output voltage trim function: In this design,there is a trim pin that allows the customer to trim the output voltage to ±10% off the nominal voltage. In the schematic on page 2, R3, R14, R2 and external trim resistor (Rtrim) comprise the trim function circuit. To trim-up, connect Rtrim between trim pin and GND. The Rtrim value is equal to: Rtrim= 28.0 RV R −∆ To trim-down, connect Rtrim between trim pin and Vout. The Rtrim value can be derived from: Rtrim= 142
28.0 RRVR
R −−∆× Remote On/OFF:
This design allows user to select positive or negative logic remote control. This demo board only implements the negative logic remote control circuit. To change to positive logic, remove Q5, R7, R8, and R12.and add D2 andD3. Over temperature protection: The over temperature protection will shut down the module when abnormal high temperature is detected by the circuit.. The module will attempt to restart once the temperature cools down. The temperature set point can be adjusted by resistor R11. Mechanical Outline Diagram Dimensions are in millimeter (inch) IN FUNCTION 1 Vo 2 Vo
3 GND
4 GND
5 GND
6 ON/OFF
7 Trim
*the pin out is not the same as standard BILL MATERIAL 43.2(1.7) 13.95(5.5) 1 2 3 4 5 6 7 8 9 7.25(0.285)
Item Quantity Reference Part Manufacture information 1 2 C1,C2 22u TDK C3225X5R1A226M 2 3 C3,C8,C13 1u TDK C2012X7R1C105K 3 3 C4,C5,C6 47u TDK C3225X5R0J476M 4 1 C9 470p TDK C1608C0G1H471J 5 1 C10 22p TDK C1608C0G1H220J 6 2 C11,C12 0.1u TDK C1608X7R1H104K 7 1 C14 6.8n TDK C1608X7R1H682K 8 1 D1 MBR0530 ON semiconductor 10 1 D4 STPS2L25U ST 11 9 J1,J2,J3,J4,J5,J6,J7 ,J8,J9 PIN 12 1 L1 SC5018-1R2M Easy Magnetic 13 2 Q1,Q2 IRF7811W IRF 14 1 R1 300 0603 15 1 R2 10.2k 0603 16 1 R3 8k 0603 17 1 R5 20k 0603 18 1 R6 4.22k 0603 19 1 R13 0 0603 20 1 R14 45k 0603 21 1 U1 SP6128A SIPEX 22 1 R11 100 0603 23 4 R7,R8,R10,R12 10K 0603 24 2 Q3,Q4 MMBT4401 ON semiconductor 25 1 Q5 MMBT2907 ON semiconductor 22 1 R9 NTC-100K TDK NTCG204CH104J ∗For the low profile application, SC5015-1R2M from Easy magnetic recommended for L1
EFFICIENCY ON THE DIFFERENT OUTPUT VOLTAGE Input voltage Output voltage Output current E fficiency Internal Trim resistor 3.0-5.5V 0.9V 10A 82% 80.6K 3.0-5.5V 1V 10A 84% 40.2K 3.0-5.5V 1.2V 10A 86% 20.5K 3.0-5.5V 1.5V 10A 88% 11.8K SIGNAL PROCESSING EXCELLENCE Headquarters and sales office
22 Linnell Circle
Billerica,MA 01821 TEL:978-667-8700 FAX:978-670-9001 E-mail: sales@sipex.com Sales office
233 South Hillview Drive
Milpitas,CA 95035 TEL:408-934-7500 FAX:408-935-7600 Application support Jack Ni TEL:978-671-4644 Email: jni@sipex.com