LTM8026 LINER [Linear Technology], LTM8026 Datasheet
LTM8026
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LTM8026 Summary of contents
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... PART NUMBER LTM8052 LTM8026 L, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 7199560, 7321203 and others pending. ...
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LTM8052 absoluTe MaxiMuM raTings (Note 1) V ............................................................................40V IN ADJ, RT, COMP, CTL_I, CTL_T, V REF V ..........................................................................25V OUT RUN, SYNC, SS ...........................................................6V Current Into RUN Pin ............................................100µA Internal Operating Temperature Range .. –40°C to 125°C Solder Temperature ............................................... 250°C ...
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T PARAMETER RUN Threshold Voltage (Falling) RUN Input Hysteresis CTL_I Control Range CTL_I Pin Current CTL_I Positive Current Limit CTL_I Negative Current Limit CTL_T Control Range CTL_T Pin Current CTL_T Positive ...
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LTM8052 Typical perForMance characTerisTics 2.5V Efficiency OUT 12V IN 24V 55 IN 36V OUTPUT CURRENT (A) 8052 G04 8V Efficiency OUT 100 95 ...
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Typical perForMance characTerisTics –8V Efficiency OUT 12V IN 24V 55 IN 28V OUTPUT CURRENT (A) 8052 G13 Input Current vs Output Current 1.5V OUT 1.0 0.8 ...
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LTM8052 Typical perForMance characTerisTics Input Current vs Output Current 12V OUT –1 –2 24V IN 36V IN –3 –6 –4 – OUTPUT CURRENT (A) 8052 G22 Input Current vs Input Voltage (Output ...
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Typical perForMance characTerisTics Minimum Required Input Running Voltage vs Output Voltage OUT OUTPUT VOLTAGE (V) 8052 G31 Minimum Required Input Voltage vs Load 8V ...
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LTM8052 Typical perForMance characTerisTics Minimum Required Input Voltage vs Load –8V OUT 30 TO START TO RUN LOAD CURRENT (A) 8052 G40 Temperature Rise vs Load Current 3.3V OUT ...
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Typical perForMance characTerisTics Temperature Rise vs Load Current –3.3V OUT 70 32.5V IN 24V IN 60 12V LOAD CURRENT (A) 8052 G49 Temperature Rise vs Load Current –12V ...
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LTM8052 pin FuncTions V (Bank 1): Power Output Pins. Apply the output filter OUT capacitor and the output load between these pins and GND pins. When reverse current is being driven into the LTM8052’s output by the load, the energy ...
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DiagraM V IN 0.2µF RUN SS SYNC CURRENT V REF CONTROLLER CTL_I CTL_T COMP 10k 2.2nF operaTion The LTM8052 is a standalone nonisolated constant-voltage, constant-current step-down switching DC/DC power sup- ply that can deliver positive ...
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... LTM8052. Please see the Input Precautions section for further details. For applications where only sourcing current (one quadrant operation) is desired, use LTM8026. The LTM8052 operates in forced continuous mode. This means that the part will not skip cycles when the load approaches zero amps ...
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For most applications, the design process is straight forward, summarized as follows: 1. Look at Table 1 and find the row that has the desired input range and output voltage. 2. Apply the recommended ...
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LTM8052 applicaTions inForMaTion graphs in the Typical Performance Characteristics section for guidance. The maximum frequency (and attendant R which the LTM8052 should be allowed to switch is given in Table 1 in the f column, while the recommended MAX frequency ...
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The input frequency must be 20% higher than the frequency determined by the resistor at the RT pin. Input ...
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LTM8052 applicaTions inForMaTion Voltage Regulation and Output Overvoltage Protection The LTM8052 uses the ADJ pin to regulate the output voltage and to provide a high speed overvoltage lockout to avoid high voltage conditions. If the output voltage exceeds 125% of ...
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Input Precautions When the LTM8052 is sinking current, it maintains its output voltage regulation by power conversion, not power dissipation. This means that the energy provided to the LTM8052 is in turn delivered to its input power bus. ...
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... example of this IN If the total input capacitance is 10μF, the input voltage will rise to: 27.5µ 15. For applications where only sourcing current (one quadrant operation) is desired, use LTM8026. CURRENT OUT FUSE ZENER LTM8052 DIODE SCR GND V ...
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No Output Current Sharing The LTM8052 is a two quadrant device, able to both sink and source current to maintain voltage regulation therefore not suitable for current sharing. PCB Layout Most of the headaches associated with ...
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LTM8052 applicaTions inForMaTion Hot Plugging Safely The small size, robustness and low impedance of ceramic capacitors make them an attractive option for the input bypass capacitor of LTM8052. However, these capacitors can cause problems if the LTM8052 is plugged into ...
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JB almost all of the heat flows through the bottom of the µModule regulator and into the board, and is really the sum of the θ and the thermal resistance of ...
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LTM8052 Typical applicaTions 6V TO 36V 36V 36V 22 36V , 3.3V Step-Down CVCC Converter IN OUT LTM8052 OUT 510k 10µF RUN SS V REF SYNC CTL_I OPTIONAL INPUT COMP CTL_T PROTECTION ...
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Typical applicaTions 16V TO 36V 7V TO 31V 36V , 12V Step-Down CVCC Converter IN OUT LTM8052 OUT 510k 10µF RUN SS V REF SYNC CTL_I OPTIONAL INPUT COMP CTL_T PROTECTION RT GND ADJ 61.9k ...
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LTM8052 Typical applicaTions Two LTM8052s Used to Regulate Positive or Negative Voltage V IN 10V TO 36V Stack Two LTM8052s to Charge and Actively Balance Supercapacitors (or Batteries 8.5V TO 36V 10µF 24 (and Current) Across a Peltier ...
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DescripTion Please refer to http://www.linear.com/designtools/packaging/ for the most recent package drawings bbb // 4.445 3.175 1.905 0.635 0.000 0.635 1.905 3.175 4.445 Z aaa LTM8052 8052fa 25 ...
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LTM8052 package DescripTion Table 3. Pin Assignment Table (Arranged by Pin Number) PIN ID FUNCTION PIN ID FUNCTION OUT OUT OUT OUT A5 GND ...
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REV DATE DESCRIPTION A 3/12 Modified the Description section. Updated the Absolute Maximum Ratings and Pin Configuration sections. Corrected the pin name on schematics using two LTM8052s. Updated the Related Parts table. Information furnished by Linear Technology Corporation ...
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... LTM8052 Typical applicaTion 36V , 3. 36V OPTIONAL INPUT PROTECTION relaTeD parTs PART NUMBER DESCRIPTION LTM8026 36V , 5A Step-Down µModule Regulator with IN Adjustable Current Limit LTM8025 36V , 3A Step-Down µModule Regulator IN LTM8062/ 32V , 2A µModule Battery Charger with Maximum IN LTM8062A Peak Power Tracking (MPPT) ...