sc1470 Semtech Corporation, sc1470 Datasheet - Page 23

• Manufacturer Part Number: sc1470
• Description: Synchronous Buck Pseudo Fixed Frequency Power Supply Controller
• Manufacturer: Semtech Corporation

SC1470
POWER MANAGEMENT
Typical Characteristics (Cont.)
Startup (PSV), EN/PSV Going High
Trace 1: 1.2V, 0.5V/div.
Trace 2: LX, 10V/div
Trace 3: EN/PSV, 5V/div
Trace 4: PGD, 5V/div.
Timebase: 1ms/div.
Startup (CCM), EN/PSV 0V to Floating
Trace 1: 1.2V, 0.5V/div.
Trace 2: LX, 10V/div
Trace 3: EN/PSV, 5V/div
Trace 4: PGD, 5V/div.
Timebase: 1ms/div.
Please refer to Figure 4 on Page 15 for test schematic
2005 Semtech Corp.
23
www.semtech.com