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參數(shù)資料
| 型號： | CR-F33T |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | PFM STEP-UP DC/DC CONVERTER |
| 中文描述： | PFM步升直流/直流轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大小： | 122K |
| 代理商： | CR-F33T |
1
TM
Preliminary Specification
PFM STEP-UP
DC/DC CONVERTER
CR-F33T
GENERAL DESCRIPTION
The
CR-F33T
is a PFM step-up DC/DC
converter IC and has a high efficiency.
These devices consist of a bandgap, a
comparator, an oscillator, a driver, and a
high current output switch.
The CR-F33T provides a higher fixed
voltage from the smaller input voltage.
The CR-F33T is used for single- or
dual-cell battery operation.
FEATURES
z
Low Voltage Operation Possible
z
Low Supply Current
z
Small Number of External
Components
z
Internal Power Switch
APPLICATIONS
z
Battery-Powered Instruments
z
Hand-Held Instruments
z
Hand-Held Communication
Instruments
z
Cameras
BLOCK DIAGRAM
Digital
Control
Clock
Select
150KHz
OSC
Bandgap
VDD
FB
EN
LX
VSSA
VSS
PIN CONFIGURATION
ORDERING INFORMATION
Step-up
NC
1
2
3
4
5
6
7
8
VDD
FB
EN
NC
VSS
VSSA
LX
SOP-8
(Top View)
1
2
3
LX
VSS
VDD
SOT-89-3
(Top View)
CR-FXXX
Output Voltage
33 : 3.3V
Package
P: SOP-8
T: SOT-89-3
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