LTC1174CN8#PBF Linear Technology, LTC1174CN8#PBF Datasheet
LTC1174CN8#PBF
Specifications of LTC1174CN8#PBF
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LTC1174CN8#PBF Summary of contents
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... For applications requiring higher output current or ultra- high efficiency, see the LTC1148 data sheet. , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. + 15µF* 25V × ...
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LTC1174 LTC1174-3.3/LTC1174 ABSOLUTE AXI U RATI GS (Voltage Referred to GND Pin) Input Supply Voltage (Pin 6) LTC1174 ........................................... – 0.3V to 13.5V LTC1174HV ...................................... – 0.3V to 18.5V Switch Current (Pin 5) .............................................. 1A Switch Voltage ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER Output Voltage Load Regulation I Input DC Supply Current (Note Low-Battery Trip Point LBTRIP I Current into Pin 3 LBIN I Current Sunk by Pin 2 ...
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LTC1174 LTC1174-3.3/LTC1174-5 ELECTRICAL CHARACTERISTICS Note 3: Guaranteed by design. Note 4: Dynamic supply current is higher due to the gate charge being delivered at the switching frequency TYPICAL PERFOR A CE CHARACTERISTICS Efficiency vs Load Current 100 95 ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS Line Regulation 100mA LOAD PGM 2 0 – 2 – 4 – 6 – 8 –10 –12 – ...
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LTC1174 LTC1174-3.3/LTC1174 CTIO (Pin 1): For the LTC1174, this pin connects to the OUT FB main voltage comparator’s input. On the LTC1174-3.3 and LTC1174-5 this pin goes to an internal resistive ...
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... RIPPLE By choosing a smaller inductor, a low ESR output filter capacitor has to be used (see C loss will also increase (see Inductor Core Selection section) due to higher ripple current. Burst Mode is a registered trademark of Linear Technology Corporation. until its voltage drops LTC1174 − ⎛ ...
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LTC1174 LTC1174-3.3/LTC1174 APPLICATIO S I FOR ATIO Inductor Core Selection With the value of L selected, the type of inductor must be chosen. Basically there are two kinds of losses in an inductor, core and copper Core losses ...
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U U APPLICATIO S I FOR ATIO Catch Diode Selection The catch diode carries load current during the off-time. The average diode current is therefore dependent on the P-channel switch duty cycle. At high input voltages the diode conducts most ...
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LTC1174 LTC1174-3.3/LTC1174 APPLICATIO S I FOR ATIO 6.8nF** 1 LTC1174 V FB 100pF* * ADJUSTABLE APPLICATIONS ** LOW NOISE APPLICATIONS Figure 4. LTC1174 Adjustable Configuration INPUT VOLTAGE 4V TO 12V 6 0.1µ SHUTDOWN ...
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U U APPLICATIO S I FOR ATIO Board Layout Checklist When laying out the printed circuit board, the following checklist should be used to ensure proper operation of the LTC1174. These items are also illustrated graphically in the layout diagram ...
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LTC1174 LTC1174-3.3/LTC1174 APPLICATIO S I FOR ATIO Solving for L in the above equation and with 44.8µH. The next higher standard value 50µH (example: Coiltronics CTX50-4). The operating frequency, neglecting voltage across ...
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U TYPICAL APPLICATIO Step-Down Regulator with Low-Battery Detection LOW-BATTERY INDICATOR * IS SET TO TRIP 5.5V IN AVX TPSD476K016 ** = MBRS140T3 (SURFACE MOUNT) D1 1N5818 † L1 SELECTION MANUFACTURER PART NO. TYPE ...
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LTC1174 LTC1174-3.3/LTC1174-5 U TYPICAL APPLICATIO S INPUT VOLTAGE 4V TO 12.5V AVX TPSD226K025 * AVX TPSD105K010 ** † COILTRONICS CTX50-4 * LOW-BATTERY INDICATOR V ( SET TO TRIP 4. AVX TPSD106K035 6 ...
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U TYPICAL APPLICATIO S * LOW-BATTERY INDICATOR IS SET TO TRIP 4. ( AVX TPSD336K020 4 *** AVX TPSD105K010 MBRS140T3 (SURFACE MOUNT) 6 1N5818 7 † L1 SELECTION MANUFACTURER ...
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LTC1174 LTC1174-3.3/LTC1174-5 U TYPICAL APPLICATIO S INPUT VOLTAGE 6V TO 12.5V * SANYO OS-CON AVX TPSD476K016 ** = MBRS140T3 (SURFACE MOUNT) D1 1N5818 † L1 SELECTION MANUFACTURER PART NO. TYPE COILTRONICS CTX50-3 SURFACE MOUNT COILCRAFT DT3316-473 SURFACE MOUNT SUMIDA CD54-470 ...
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U TYPICAL APPLICATIO S SANYO OS-CON * WIMA MKS2 ** † COILTRONICS CTX100-4 V (V) I (mA) IN OUT MAX 100 8 125 10 145 12 160 13 180 3 2 CTX100-4 L1A L1B ...
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LTC1174 LTC1174-3.3/LTC1174-5 U TYPICAL APPLICATIO S INPUT VOLTAGE 6V TO 12.5V TPO610L + 100µF* 20V SANYO OS-CON CAPACITOR * † COILTRONICS CTX50-4 * SANYO OS-CON ** WIMA MKS2 † COILTRONICS CTX100 CTX100-4 L1B Automatic Current ...
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... MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm) Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
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... OUT 4 NiCAD BATTERY † L1 150k + 50µH 100µF** 10V 33k 1174 TA15 Output Ripple, SOT-23 Package P-P = 135µ 1.25V Q OUT = 5V, 2.65V to 10V = 10µ 1006 REV E • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 1994 1174fe ...