Datasheet LTM8029 (Analog Devices)
| 制造商 | Analog Devices |
| 描述 | 36VIN, 600mA Step-Down µModule Converter with 5µA Quiescent Current |
| 页数 / 页 | 22 / 1 — FEATURES. DESCRIPTION. Complete Switch Mode Power Supply. Low Quiescent … |
| 修订版 | E |
| 文件格式/大小 | PDF / 1.0 Mb |
| 文件语言 | 英语 |
FEATURES. DESCRIPTION. Complete Switch Mode Power Supply. Low Quiescent Current Burst Mode. Operation. 5μA IQ at 12VIN to 3.3VOUT
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LTM8029 36VIN, 600mA Step-Down µModule Converter with 5µA Quiescent Current
FEATURES DESCRIPTION
n
Complete Switch Mode Power Supply
The LTM®8029 is a 36VIN, 600mA step-down µModule® n
Low Quiescent Current Burst Mode
®
Operation
converter with 5µA quiescent current. It is an adjustable
5μA IQ at 12VIN to 3.3VOUT
frequency buck switching regulator that consumes only n
600mA Output Current
5μA of quiescent current. The LTM8029 can accept an n
Wide Input Voltage Range: 4.5V to 36V (40VMAX)
input as high as 36VIN and operates at low input voltages n
Output Voltage: 1.2V to 18V
due to its off-time skipping capability. Burst Mode opera- n
Excellent Dropout Performance
tion maintains high efficiency at low output currents while n Can Be Used as an Inverter keeping the output ripple low. The RUN pin features an n Adjustable Switching Frequency: 200kHz to 2.2MHz accurate threshold and the shutdown current is 0.9μA. n Current Mode Control A power good flag signals when VOUT reaches 90% of the n SnPb or RoHS Compliant Finish programmed output voltage. n Tiny, Low Profile (11.25mm × 6.25mm × 3.42mm) The LTM8029 is packaged in a thermally enhanced, com- Surface Mount BGA Package pact (11.25mm × 6.25mm) and low profile (3.42mm) overmolded ball grid array (BGA) package. The LTM8029
APPLICATIONS
is available with SnPb (BGA) or RoHS compliant terminal finish. n Automotive Battery Regulation All registered trademarks and trademarks are the property of their respective owners. Protected n Power for Portable Products by U.S. patents, including XXXXX, XXXXX. n Distributed Supply Regulation n Industrial Supplies n Wall Transformer Regulation
TYPICAL APPLICATION Low Quiescent Current, 5VOUT, 600mA µModule Regulator Minimum Input Voltage vs Output Current
5.8 LTM8029 VIN V VOUT IN 5.6V TO 36V VOUT 5V 5.7 RUN 600mA BIAS 1µF 22µF PGOOD 5.6 RT GND FB 158k 309k INPUT VOLTAGE (V) 5.5 f = 800kHz 8029 TA01a 5.4 0 100 200 300 400 500 600 OUTPUT CURRENT (mA) 8029 TA01b Rev. E 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 Application Package Description Revision History Package Photo Design Resources Related Parts
FEATURES DESCRIPTION
n
Complete Switch Mode Power Supply
The LTM®8029 is a 36VIN, 600mA step-down µModule® n
Low Quiescent Current Burst Mode
®
Operation
converter with 5µA quiescent current. It is an adjustable
5μA IQ at 12VIN to 3.3VOUT
frequency buck switching regulator that consumes only n
600mA Output Current
5μA of quiescent current. The LTM8029 can accept an n
Wide Input Voltage Range: 4.5V to 36V (40VMAX)
input as high as 36VIN and operates at low input voltages n
Output Voltage: 1.2V to 18V
due to its off-time skipping capability. Burst Mode opera- n
Excellent Dropout Performance
tion maintains high efficiency at low output currents while n Can Be Used as an Inverter keeping the output ripple low. The RUN pin features an n Adjustable Switching Frequency: 200kHz to 2.2MHz accurate threshold and the shutdown current is 0.9μA. n Current Mode Control A power good flag signals when VOUT reaches 90% of the n SnPb or RoHS Compliant Finish programmed output voltage. n Tiny, Low Profile (11.25mm × 6.25mm × 3.42mm) The LTM8029 is packaged in a thermally enhanced, com- Surface Mount BGA Package pact (11.25mm × 6.25mm) and low profile (3.42mm) overmolded ball grid array (BGA) package. The LTM8029
APPLICATIONS
is available with SnPb (BGA) or RoHS compliant terminal finish. n Automotive Battery Regulation All registered trademarks and trademarks are the property of their respective owners. Protected n Power for Portable Products by U.S. patents, including XXXXX, XXXXX. n Distributed Supply Regulation n Industrial Supplies n Wall Transformer Regulation
TYPICAL APPLICATION Low Quiescent Current, 5VOUT, 600mA µModule Regulator Minimum Input Voltage vs Output Current
5.8 LTM8029 VIN V VOUT IN 5.6V TO 36V VOUT 5V 5.7 RUN 600mA BIAS 1µF 22µF PGOOD 5.6 RT GND FB 158k 309k INPUT VOLTAGE (V) 5.5 f = 800kHz 8029 TA01a 5.4 0 100 200 300 400 500 600 OUTPUT CURRENT (mA) 8029 TA01b Rev. E 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 Application Package Description Revision History Package Photo Design Resources Related Parts