參數(shù)資料
型號： L6920DTR
廠商： 意法半導體
英文描述： 1V HIGH EFFICIENCY SYNCRONOUS STEP UP CONVERTER
中文描述： 1V的高效SYNCRONOUS升壓轉換器
文件頁數(shù)： 1/13頁
文件大小： 183K
代理商： L6920DTR
1/13
L6920
February 2005
1
Features
■
0.6 TO 5.5V OPERATING INPUT VOLTAGE
■
1V START UP INPUT VOLTAGE
■
INTERNAL SYNCHRONOUS RECTIFIER
■
ZERO SHUT DOWN CURRENT
■
3.3V AND 5V FIXED OR ADJUSTABLE
OUTPUT VOLTAGE (2V UP TO 5.2V)
■
120m
INTERNAL ACTIVE SWITCH
■
LOW BATTERY VOLTAGE DETECTION
■
REVERSE BATTERY PROTECTION
1.1 Applications
■
ONE TO THREE CELL BATTERY DEVICES
■
PDA AND HAND HELD INSTRUMENTS
■
CELLULAR PHONES - DIGITAL CORDLESS
PHONE
■
PAGERS
■
GPS
■
DIGITAL CAMERAS
2
Description
The L6920 is a high efficiency step-up controller re-
quiring only three external components to realize the
conversion from the battery voltage to the selected
output voltage.
The start up is guaranteed at 1V and the device is op-
erating down to 0.6V.
Internal synchronous rectifier is implemented with a
120m
P-channel MOSFET and, in order to improve
the efficiency, a variable frequency control is imple-
mented.
1V HIGH EFFICIENCY SYNCRONOUS STEP UP CONVERTER
Figure 1. Application Circuit
L1
LX
8
OUT
1
FB
3
6
LBO
GND
SHDN
7
5
LBI
2
REF
4
V
CC
2.5V
V
OUT
3.3V
500mA
L6920D
C2
C3
C1
Figure 1. Package
Table 1. Order Codes
Part Number
L6920D
L6920DTR
Package
TSSOP8 Tube
Tape & Reel
TSSOP8
Rev. 2
相關PDF資料
PDF描述
L6920D 1V HIGH EFFICIENCY SYNCRONOUS STEP UP CONVERTER
L6920 1V HIGH EFFICIENCY SYNCRONOUS STEP UP CONVERTER
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相關代理商/技術參數(shù)
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L6924U 功能描述:電池管理 USB Battery Charger System w/integra RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
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