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LT1610CS8 Datasheet(PDF) 5 Page - Linear Technology |
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LT1610CS8 Datasheet(HTML) 5 Page - Linear Technology |
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5 / 16 page  5 LT1610 PIN FUNCTIONS VC (Pin 1): Error Amplifier Output. Frequency compensa- tion network must be connected to this pin, either internal (COMP pin) or external series RC to ground. 220k Ω/ 220pF typical value. FB (Pin 2): Feedback Pin. Reference voltage is 1.23V. Connect resistive divider tap here. Minimize trace area at FB. Set VOUT according to VOUT = 1.23V (1 + R1/R2). SHDN (Pin 3): Shutdown. Ground this pin to turn off device. Tie to 1V or more to enable. PGND (Pin 4): Power Ground. Tie directly to local ground plane. SW (Pin 5): Switch Pin. Connect inductor/diode here. Minimize trace area at this pin to keep EMI down. VIN (Pin 6): Input Supply Pin. Must be locally bypassed. GND (Pin 7): Signal Ground. Carries all device ground current except switch current. Tie to local ground plane. COMP (Pin 8): Internal Compensation Network. Tie to VC pin, or let float if external compensation is used. Output capacitor must be tantalum if COMP pin is used for com- pensation. BLOCK DIAGRA FB FB BIAS VC R5 40k 1.7MHz OSCILLATOR RAMP GENERATOR FF S RQ 0.15 Ω VIN VIN – + COMP 4 7 3 8 5 6 1 – + A = 3 VOUT SW GND Q1 Q2 × 10 Q3 PGND A2 1610 F02 SHDN SHUTDOWN ENABLE COMPARATOR DRIVER R6 40k R3 30k R2 (EXTERNAL) RC CC R4 140k R1 (EXTERNAL) – + A1 gm 2 Σ Figure 2. LT1610 Block Diagram |
Similar Part No. - LT1610CS8 |
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Similar Description - LT1610CS8 |
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