Datasheet LTM4615 (Analog Devices) - 7
| Manufacturer | Analog Devices |
| Description | Triple Output, Low Voltage DC/DC µModule Regulator |
| Pages / Page | 24 / 7 — Typical perForMance characTerisTics. Ripple Rejection. Output Current … |
| File Format / Size | PDF / 531 Kb |
| Document Language | English |
Typical perForMance characTerisTics. Ripple Rejection. Output Current Limit. Delay from Enable to Power Good
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LTM4615
Typical perForMance characTerisTics Ripple Rejection Output Current Limit Delay from Enable to Power Good
70 5.0 5.0 VLDO_OUT = 0V VLDO_OUT = 0.8V T 4.5 R 60 4.5 A = 25°C LDO_OUT = 8Ω –40°C 4.0 25°C 50 4.0 3.5 85°C 3.5 40 (A) 3.0 3.0 2.5 30 I LDO_OUT 2.5 DELAY (ms) 2.0 20 V CURRENT LIMIT 1.5 RIPPLE REJECTION (dB) BOOST3 = 5V VLDO_IN = 1.5V 2.0 1.0 10 VLDO_OUT =1.2V THERMAL LIMIT IOUT = 800mA 1.5 0.5 COUT = 10µF 0 1.0 0 100 1000 10000 100000 1000000 1E+07 1.0 1.5 2.0 2.5 3.0 3.5 1.0 1.5 2.0 2.5 3.0 3.5 FREQUENCY (Hz) VLDO_IN (V) VLDO_IN (V) 4615 G19 4615 G20 4615 G21
Output Load Transient Response IN Supply Transient Response
1.5A ILDO_OUT 2mA 2V VLDO_IN 1.5V VLDO_OUT AC 20mV/DIV VLDO_OUT AC 10mV/DIV 4615 G22 VLDO_OUT = 1.5V 50µs/DIV 4615 G23 VLDO_OUT = 1.2V 10µs/DIV COUT = 10µF ILDO_OUT = 800mA VLDO_IN = 1.7V COUT = 10µF VBOOST3 = 5V VBOOST3 = 5V TA = 25°C
BOOST3 Ripple and Feedthrough to BOOST3/OUT Start-Up VLDO_OUT
HI EN3 LO 5V BOOST3 AC 20mV/DIV BOOST3 1V 1.5V VLDO_OUT AC 5mV/DIV VLDO_OUT 0V 4615 G24 TA = 25°C 200µs/DIV 4615 G25 VLDO_OUT = 1.2V 20µs/DIV RLDO_OUT = 1Ω VLDO_IN = 1.5V VLDO_IN = 1.7V ILDO_OUT = 1A COUT = 10µF TA = 25°C 4615fb For more information www.linear.com/LTM4615 7 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Package Description Revision History Package Photograph Related Parts
Typical perForMance characTerisTics Ripple Rejection Output Current Limit Delay from Enable to Power Good
70 5.0 5.0 VLDO_OUT = 0V VLDO_OUT = 0.8V T 4.5 R 60 4.5 A = 25°C LDO_OUT = 8Ω –40°C 4.0 25°C 50 4.0 3.5 85°C 3.5 40 (A) 3.0 3.0 2.5 30 I LDO_OUT 2.5 DELAY (ms) 2.0 20 V CURRENT LIMIT 1.5 RIPPLE REJECTION (dB) BOOST3 = 5V VLDO_IN = 1.5V 2.0 1.0 10 VLDO_OUT =1.2V THERMAL LIMIT IOUT = 800mA 1.5 0.5 COUT = 10µF 0 1.0 0 100 1000 10000 100000 1000000 1E+07 1.0 1.5 2.0 2.5 3.0 3.5 1.0 1.5 2.0 2.5 3.0 3.5 FREQUENCY (Hz) VLDO_IN (V) VLDO_IN (V) 4615 G19 4615 G20 4615 G21
Output Load Transient Response IN Supply Transient Response
1.5A ILDO_OUT 2mA 2V VLDO_IN 1.5V VLDO_OUT AC 20mV/DIV VLDO_OUT AC 10mV/DIV 4615 G22 VLDO_OUT = 1.5V 50µs/DIV 4615 G23 VLDO_OUT = 1.2V 10µs/DIV COUT = 10µF ILDO_OUT = 800mA VLDO_IN = 1.7V COUT = 10µF VBOOST3 = 5V VBOOST3 = 5V TA = 25°C
BOOST3 Ripple and Feedthrough to BOOST3/OUT Start-Up VLDO_OUT
HI EN3 LO 5V BOOST3 AC 20mV/DIV BOOST3 1V 1.5V VLDO_OUT AC 5mV/DIV VLDO_OUT 0V 4615 G24 TA = 25°C 200µs/DIV 4615 G25 VLDO_OUT = 1.2V 20µs/DIV RLDO_OUT = 1Ω VLDO_IN = 1.5V VLDO_IN = 1.7V ILDO_OUT = 1A COUT = 10µF TA = 25°C 4615fb For more information www.linear.com/LTM4615 7 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Package Description Revision History Package Photograph Related Parts
