Datasheet LT3740 (Analog Devices) - 6
| Hersteller | Analog Devices |
| Beschreibung | Wide Operating Range, Valley Mode, No RSENSE Synchronous Step-Down Controller |
| Seiten / Seite | 20 / 6 — PIN FUNCTIONS. VC (Pin 16):. Exposed Pad (Pin 17):. BLOCK DIAGRAM |
| Dateiformat / Größe | PDF / 244 Kb |
| Dokumentensprache | Englisch |
PIN FUNCTIONS. VC (Pin 16):. Exposed Pad (Pin 17):. BLOCK DIAGRAM
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LT3740
PIN FUNCTIONS VC (Pin 16):
Error Amplifi er Compensation Pin. Connect the
Exposed Pad (Pin 17):
Ground. Must be soldered to PCB external compensation RC to this pin. The current comparator ground. threshold increases with the voltage of this pin.
BLOCK DIAGRAM
VIN SWB 10 9 7.8V + + Gm – – A2 Q1 R Q S + – V 16 C Σ A3 + SHDN 13 RAMP 1.2MHz GENERATOR OSCILLATOR 8 BIAS 7 TGATE XREF 14 + 6 SW – gm – SWITCH + A1 LOGIC 4 BGDP + V 3 BGATE REF 0.80V FB 15 2 PGND – 5 SN+ – Σ + 1 SN– 0.72V + 11 RANGE PGOOD 12 RAMP 300KHz GENERATOR OSCILLATOR 3740 BD 3740fc 6
PIN FUNCTIONS VC (Pin 16):
Error Amplifi er Compensation Pin. Connect the
Exposed Pad (Pin 17):
Ground. Must be soldered to PCB external compensation RC to this pin. The current comparator ground. threshold increases with the voltage of this pin.
BLOCK DIAGRAM
VIN SWB 10 9 7.8V + + Gm – – A2 Q1 R Q S + – V 16 C Σ A3 + SHDN 13 RAMP 1.2MHz GENERATOR OSCILLATOR 8 BIAS 7 TGATE XREF 14 + 6 SW – gm – SWITCH + A1 LOGIC 4 BGDP + V 3 BGATE REF 0.80V FB 15 2 PGND – 5 SN+ – Σ + 1 SN– 0.72V + 11 RANGE PGOOD 12 RAMP 300KHz GENERATOR OSCILLATOR 3740 BD 3740fc 6