PDF《36VIN, 5A CVCC Step-Down》

3 C55°C to 125°C LTM8026EY#PBF SAC305 (RoHS) LTM8026Y e1 BGA

3 C40°C to 125°C LTM8026IY#PBF SAC305 (RoHS) LTM8026Y e1 BGA

3 C40°C to 125°C LTM8026IY SnPb (63/37) LTM8026Y e0 BGA

3 C40°C to 125°C LTM8026MPY#PBF SAC305 (RoHS) LTM8026Y e1 BGA

3 C55°C to 125°C LTM8026MPY SnPb (63/37) LTM8026Y e0 BGA

3 C55°C to 125°C Consult Marketing for parts specified with wider operating temperature ranges. *Device temperature grade is indicated by a label on the shipping container. Pad or ball finish code is per IPC/JEDEC J-STD-609. ? Terminal Finish Part Marking: www.linear.com/leadfree ? Recommended LGA and BGA PCB Assembly and Manufacturing Procedures: www.linear.com/umodule/pcbassembly ? LGA and BGA Package and Tray Drawings: www.linear.com/packaging ORDER INFORMATION http://www.linear.com/product/LTM8026#orderinfo

3 For more information www.linear.com/LTM8026 ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full internal operating temperature range, otherwise specifications are at TA = 25°C. RUN = 3V, unless otherwise noted. (Note 3) PARAMETER CONDITIONS MIN TYP MAX UNITS Minimum Input Voltage l

6 V Output DC Voltage IOUT = 1A, RADJ Open IOUT = 1A, RADJ = 499Ω 1.2

24 V V Output DC Current 6V <

VIN <

36V, VOUT = 3.3V

0 5 A Quiescent Current Into VIN RUN = 0V No Load 0.1

2 3

4 ?A mA Line Regulation 6V <

VIN <

36V, IOUT = 1A 0.1 % Load Regulation VIN = 12V, 0A <

IOUT <

5A 0.7 % Output RMS Voltage Ripple VIN = 12V, IOUT = 4.5A

10 mV Switching Frequency RT = 40.2k RT = 453k

1000 100 kHz kHz Voltage at ADJ Pin l 1.16 1.19 1.22 V Current Out of ADJ Pin ADJ = 0V, VOUT = 1V

100 ?A RUN Pin Current RUN = 1.45V 5.5 ?A RUN Threshold Voltage (Falling) 1.47 1.55 1.63 V RUN Input Hysteresis

130 mV CTL_I Control Range

0 1.5 V CTL_I Pin Current 1.5 ?A CTL_I Current Limit Accuracy CTL_I = 1.5V CTL_I = 0.75V 5.1 2.24 5.6 2.8 6.1 3.36 A A CTL_T Control Range

0 1.5 V CTL_T Pin Current 1.5 ?A CTL_T Current Limit Accuracy CTL_T = 1.5V CTL_T = 0.75V 5.1 2.24 5.6 2.8 6.1 3.36 A A VREF Voltage 0.5mA Load 1.89 2.04 V SS Pin Current (Note 4) C11 ?A SYNC Input Low Threshold fSYNC = 400kHz 0.6 V SYNC Input High Threshold fSYNC = 400kHz 1.2 V SYNC Bias Current SYNC = 0V

1 ?A Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: This ?Module regulator includes overtemperature protection that is intended to protect the device during momentary overload conditions. Internal temperature will exceed 125°C when overtemperature protection is active. Continuous operation above the specified maximum internal operating junction temperature may impair device reliability. Note 3: The LTM8026E is guaranteed to meet performance specifications from 0°C to 125°C internal operating temperature. Specifications over the full C40°C to 125°C internal operating temperature range are assured by design, characterization and correlation with statistical process controls. The LTM8026I is guaranteed to meet specifications over the full C40°C to 125°C internal operating temperature range. The LTM8026MP is guaranteed to meet specifications over the full C55°C to 125°C internal operating temperature range. Note that the maximum internal temperature is determined by specific operating conditions in conjunction with board layout, the rated package thermal resistance and other environmental factors. Note 4: Current flows out of pin.