Datasheet Details
- Part number
- SC1470
- Manufacturer
- SEMTECH ELECTRONICS
- File Size
- 495.28 KB
- Datasheet
- SC1470_SEMTECHELECTRONICS.pdf
- Description
- Synchronous Buck Power Supply Controller
SC1470 Description
www.DataSheet4U.com Synchronous Buck Power Supply Controller POWER MANAGEMENT .
The SC1470 is a single output, constant on-time synchronous-buck, pseudo fixed frequency, PWM controller intended for use in notebook computers and ot.
SC1470 Features
* include high efficiency and fast dynamic response with no minimum on time. The excellent transient response means that SC1470 based solutions will require less output capacitance than competing fixed frequency converters. SC1470
Features
Constant on-time for fast dynamic response Programma
SC1470 Applications
*
Typical Application Circuit
1.8V - 25V
+5V + R1 C1 + C2
D1 R2 +5V +5V R3 1 2 3 4 5 6 7 C6 SC1470 Q2 U1 BST EN/PSV DH TON LX VOUT ILIM VCCA VDDP FBK PGOOD DL GND PGND 14 13 12 11 10 9 8 Q1 C3 L1 0.5V - 5.5V
PGOOD C5
R4 D2 + C4
R5
R6
Revision: October 14, 2004
1
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