 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
SP6137 Datasheet(PDF) 1 Page - Exar Corporation |
|
|
|||||||||||||||||||||||||||||
SP6137 Datasheet(HTML) 1 Page - Exar Corporation |
|
|
1 / 15 page  S SP P6 61 13 37 7 W Wiid de e IIn np pu utt,, 9 90 00 0k kH Hz z S Sy yn nc ch hrro on no ou us s P PW WM M S Stte ep p D Do ow wn n C Co on nttrro olllle err January 2009 Rev. 2.0.0 Exar Corporation www.exar.com 48720 Kato Road, Fremont CA 94538, USA Tel. +1 510 668-7000 – Fax. +1 510 668-7001 GENERAL DESCRIPTION The SP6137 is a 900kHz constant frequency, voltage mode, synchronous PWM step down controller optimized for high efficiency. The SP6137 is adequately suited for split plane applications utilizing a low power 5V rail to power the controller circuitry, minimizing power dissipation. Its wide input voltage range of 3V to 15V allows for conversions from the standard 3.3V, 5V, 9.6V and 12V power rails to an output voltage adjustable down to 0.8V. Developed around a wide bandwidth internal amplifier, the SP6137 can accommodate type II and type III compensation schemes. Protection features include a programmable UVLO, thermal shutdown and output short circuit protection. The SP6137 is part of a larger family of step down controllers operating at various switching frequencies up to 1300kHz and input voltages up to 28V. Refer to Exar’s SP6132, SP6132H, SP6134, SP6134H and SP6139 for complete details. The SP6137 is available in lead free, RoHS compliant, space saving 10-pin MSOP package. APPLICATIONS • 12V DPA • Communications Systems • Graphics Cards FEATURES • 2.5V to 20V Step Down Achieved Using Dual Input • On-Board 1.5Ω sink (2Ω source) NFET Drivers • Up to 10A Output Capability • UVLO Detects Both VCC and VIN • Short-Circuit Protection with Auto- Restart • Supports Type II or III Compensation • Programmable Soft Start • Fast Transient Response • High Efficiency: Greater than 94% • Non-synchronous Start-Up • Small 10-Pin MSOP Package • U.S. Patent #6,922,041 TYPICAL APPLICATION DIAGRAM 8 7 6 5 1 2 3 4 CSS 47nF CBST 0.1 μF L1 SC5018-2R7M 2.7 μH @ 12A DCR=4.30m Ω FDS6676S 14.5A, 6.0m Ω C3 47 μF 6.3V R1 68.1k, 1% VOUT≤VIN 3.3V @ 10A R2 21.5k, 1% CVCC 10 μF 6.3V R3 221k, 1% R4 100k, 1% CF1 100pF CZ2 820pF CP1 56pF RZ2 40.2k, 1% FDS6676S 14.5A, 6m Ω 8 7 6 5 4 1 2 3 DBST MBR0530 SP6137 1 2 3 4 5 10 9 8 7 6 VCC GL GND VFB COMP BST GH SWN SS UVIN UVIN VCC GND 3 RLF 3.0,5% U1 CVCC Ceramic 8050 X5R QT SS GND2 C3, C4 Ceramic 1210 X5R C4 47 μF 6.3V RZ3 4.64k, 1% CZ3 220pF C1 22 μF 16V C2 22 μF 16V GND VIN 2.5V -20V C1, C2 Ceramic 1210 X5R R5 Bead QB = 5V @ 30mA 0.8V Fig. 1: SP6137 Application Diagram |
Similar Part No. - SP6137 |
|
Similar Description - SP6137 |
|
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
