Datasheet LTM8049 (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | Dual SEPIC or Inverting μModule DC/DC Converter |
| 页数 / 页 | 20 / 1 — FEATURES. DESCRIPTION. Two Complete Switch Mode Power Supplies. SEPIC or … |
| 修订版 | B |
| 文件格式/大小 | PDF / 2.0 Mb |
| 文件语言 | 英语 |
FEATURES. DESCRIPTION. Two Complete Switch Mode Power Supplies. SEPIC or Inverting Topology
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LTM8049 Dual SEPIC or Inverting µModule DC/DC Converter
FEATURES DESCRIPTION
n
Two Complete Switch Mode Power Supplies
The LTM®8049 is a Dual SEPIC/Inverting µModule® (power n
SEPIC or Inverting Topology
module) DC/DC Converter. Each of the two outputs can be n
Wide Input Voltage Range: 2.6V to 20V
easily configured as a SEPIC or Inverting converter by sim- n
2.5V to 24V or –2.5V to –24V Output Voltage
ply grounding the appropriate output rail. The LTM8049 n
1A at 5VOUT from 12VIN
includes power devices, inductors, control circuitry and n
Selectable Switching Frequency: 200kHz to 2.5MHz
passive components. All that is needed to complete the n
Power Good Outputs for Event Based Sequencing
design are input and output caps, and small resistors to n User Configurable Undervoltage Lockout set the output voltages and switching frequency. Other n (e4) RoHS Compliant Package with Gold Pad Finish components may be used to control the soft-start and n Low Profile 15mm × 9mm × 2.42mm Surface Mount undervoltage lockout. BGA Package The LTM8049 is packaged in a thermally enhanced, com- pact (15mm × 9mm) over-molded Ball Grid Array (BGA)
APPLICATIONS
package suitable for automated assembly by standard n Battery Powered Regulator surface mount equipment. The LTM8049 is available with n Local Negative Voltage Regulator SnPb (BGA) or RoHS compliant terminal finish. n Low Noise Amplifier Power All registered trademarks and trademarks are the property of their respective owners.
TYPICAL APPLICATION ±12VOUT from 2.7VIN to 20VIN Maximum Load Current vs VIN
1.5 V V IN1 VOUT1P IN VOUT1 2.7V TO 20V 12V 4.7µF RUN1 FBX1 ×2 130k VOUT1N RT1 1.0 22µF 80.6k 1MHz CLKOUT1 SYNC2 LTM8049 RT2 80.6k 0.5 VIN2 VOUT2P LOAD CURRENT (A) 1MHz 47µF RUN2 FBX2 143k VOUT2N VOUT2 SYNC1 –12V 0 0 5 10 15 20 VIN (V) PINS NOT USED: SS1, SS2, PG1, PG2, CLKOUT2, SHARE1, SHARE2 8049 TA01a 8049 TA01 Rev B Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Package Photo Revision History Typical Application Related Parts
FEATURES DESCRIPTION
n
Two Complete Switch Mode Power Supplies
The LTM®8049 is a Dual SEPIC/Inverting µModule® (power n
SEPIC or Inverting Topology
module) DC/DC Converter. Each of the two outputs can be n
Wide Input Voltage Range: 2.6V to 20V
easily configured as a SEPIC or Inverting converter by sim- n
2.5V to 24V or –2.5V to –24V Output Voltage
ply grounding the appropriate output rail. The LTM8049 n
1A at 5VOUT from 12VIN
includes power devices, inductors, control circuitry and n
Selectable Switching Frequency: 200kHz to 2.5MHz
passive components. All that is needed to complete the n
Power Good Outputs for Event Based Sequencing
design are input and output caps, and small resistors to n User Configurable Undervoltage Lockout set the output voltages and switching frequency. Other n (e4) RoHS Compliant Package with Gold Pad Finish components may be used to control the soft-start and n Low Profile 15mm × 9mm × 2.42mm Surface Mount undervoltage lockout. BGA Package The LTM8049 is packaged in a thermally enhanced, com- pact (15mm × 9mm) over-molded Ball Grid Array (BGA)
APPLICATIONS
package suitable for automated assembly by standard n Battery Powered Regulator surface mount equipment. The LTM8049 is available with n Local Negative Voltage Regulator SnPb (BGA) or RoHS compliant terminal finish. n Low Noise Amplifier Power All registered trademarks and trademarks are the property of their respective owners.
TYPICAL APPLICATION ±12VOUT from 2.7VIN to 20VIN Maximum Load Current vs VIN
1.5 V V IN1 VOUT1P IN VOUT1 2.7V TO 20V 12V 4.7µF RUN1 FBX1 ×2 130k VOUT1N RT1 1.0 22µF 80.6k 1MHz CLKOUT1 SYNC2 LTM8049 RT2 80.6k 0.5 VIN2 VOUT2P LOAD CURRENT (A) 1MHz 47µF RUN2 FBX2 143k VOUT2N VOUT2 SYNC1 –12V 0 0 5 10 15 20 VIN (V) PINS NOT USED: SS1, SS2, PG1, PG2, CLKOUT2, SHARE1, SHARE2 8049 TA01a 8049 TA01 Rev B Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Package Photo Revision History Typical Application Related Parts