LTM8027EV LINER [Linear Technology], LTM8027EV Datasheet

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FEATURES n Complete Switch Mode Power Supply n Wide Input Voltage Range: 4.5V to 60V (7.5V Minimum Voltage to Start) n Wide Output Voltage Range: 2.5V to 24V (See Table Output Current n Programmable Soft-Start n 10μA ...

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... Maximum Soldering Temperature ......................... 245°C Storage Temperature Range .................. –55°C to 125°C ORDER INFORMATION LEAD FREE FINISH TRAY LTM8027EV#PBF LTM8027EV#PBF LTM8027IV#PBF LTM8027IV#PBF LTM8027MPV#PBF LTM8027MPV#PBF Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based fi nish parts. ...

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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER V ADJ Voltage ADJ IQ Quiescent Current into IN VIN V BIAS1 Undervoltage Lockout (Rising) BIAS1 BIAS1 Undervoltage Lockout (Falling) I Current into BIAS1 BIAS1 V Minimum BIAS2 ...

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LTM8027 TYPICAL PERFORMANCE CHARACTERISTICS Effi ciency vs Load 2.5V OUT 100 12V IN 24V IN 10 36V LOAD (A) 8027 G01 Effi ...

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TYPICAL PERFORMANCE CHARACTERISTICS Input Current vs Load 2.5V OUT 3000 5V IN 12V IN 2500 24V IN 36V IN 2000 1500 1000 500 LOAD (A) 8027 G43 Input Current vs Load ...

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LTM8027 TYPICAL PERFORMANCE CHARACTERISTICS Bias Current vs Load 3.3V OUT 18.0 17.5 17.0 16.5 16.0 15.5 15.0 48V IN 36V IN 14.5 24V IN 12V IN 14 LOAD (A) 8027 G18 Bias Current vs ...

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TYPICAL PERFORMANCE CHARACTERISTICS Minimum V vs Load 12V OUT 16.0 15.5 15.0 14.5 14.0 13.5 13.0 12.5 12 LOAD (A) 8027 G27 Minimum V vs Load 24V OUT 32 30 ...

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LTM8027 TYPICAL PERFORMANCE CHARACTERISTICS Temperature Rise vs Load 2.5V OUT 42 36V IN 24V 37 IN 12V LOAD (A) 8027 G35 Temperature Rise vs ...

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PIN FUNCTIONS V (Bank 3): The V pin supplies current to the LTM8027’ internal regulator and to the internal power switch. This pin must be locally bypassed with an external, low ESR capacitor (see Table 2). V (Bank ...

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LTM8027 BLOCK DIAGRAM V IN RUN SS SYNC OPERATION The LTM8027 is a standalone nonisolated step-down switching DC/DC power supply with an input voltage range of 4.5V to 60V that can deliver output current. This module ...

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APPLICATIONS INFORMATION For most applications, the design process is straight forward, summarized as follows: 1. Look at Table 2 and fi nd the row that has the desired input range and output voltage. 2. Apply the recommended ...

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LTM8027 APPLICATIONS INFORMATION For example, suppose the LTM8027 needs to provide 5V from an input voltage source that is nominally 12V. From Table 2, the recommended R value is 162k, which cor- T responds to an operating frequency of 210kHz. ...

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APPLICATIONS INFORMATION It is recommended that the user apply the R in Table 2 for the input and output operating condition. System level or other considerations, however, may ne- cessitate another operating frequency. While the LTM8027 is fl exible enough ...

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LTM8027 APPLICATIONS INFORMATION Example: Select R = 49.9k IN(ON) a 15V minimum input voltage) ⎛ ⎞ 14.5V = 49.9k • = 464k R – 1 ⎝ ⎜ ⎠ ⎟ A 1.4V The V turn off voltage is 15% ...

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APPLICATIONS INFORMATION PCB Layout Most of the headaches associated with PCB layout have been alleviated or even eliminated by the high level of integration of the LTM8027. The LTM8027 is neverthe- less a switching power supply, and care must be ...

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LTM8027 APPLICATIONS INFORMATION The junction-to-air and junction-to-board thermal resis- tances given in the Pin Confi guration diagram may also be used to estimate the LTM8027 internal temperature. These thermal coeffi cients are determined per JESD 51-9 (JEDEC standard, test boards ...

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TYPICAL APPLICATIONS 3.3V V Step-Down Converter OUT 4.5V TO 40V 10μF 1M LTM8027 2 RUN SS SYNC RT GND 102k *RUNNING VOLTAGE. SEE APPLICATIONS INFORMATION FOR START-UP DETAILS 15V V Step-Down Converter OUT V IN ...

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LTM8027 PACKAGE DESCRIPTION bbb // 6.350 5.080 3.810 2.540 1.270 0.000 1.270 2.540 3.810 5.080 6.350 8027f ...

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PACKAGE DESCRIPTION PIN NAME A1 GND A2 ADJ A3 BIAS2 A4 RUN BIAS1 A7 AUX A8 GND A9 GND A10 GND A11 GND GND B3 GND B4 GND B5 GND B6 GND B7 GND ...

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LTM8027 PACKAGE PHOTOGRAPH RELATED PARTS PART NUMBER DESCRIPTION LTM4600 10A DC/DC μModule Regulator LTM4600HVMPV Military Plastic 10A DC/DC μModule Regulator LTM4601/ 12A DC/DC μModule with PLL, Output Tracking/ LTM4601A Margining and Remote Sensing LTM4602 6A DC/DC μModule Regulator LTM4603 6A ...