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Numéro de référence | L6920D | ||
Description | 1V HIGH EFFICIENCY SYNCRONOUS STEP UP CONVERTER | ||
Fabricant | STMicroelectronics | ||
Logo | |||
1 Page
L6920
1V HIGH EFFICIENCY SYNCRONOUS STEP UP CONVERTER
s 0.6 TO 5.5V OPERATING INPUT VOLTAGE
s 1V START UP INPUT VOLTAGE
s INTERNAL SYNCHRONOUS RECTIFIER
s ZERO SHUT DOWN CURRENT
s 3.3V AND 5V FIXED OR ADJUSTABLE
OUTPUT VOLTAGE (2V UP TO 5.2V)
s 120mΩ INTERNAL ACTIVE SWITCH
s LOW BATTERY VOLTAGE DETECTION
s REVERSE BATTERY PROTECTION
Applications
s ONE TO THREE CELL BATTERY DEVICES
s PDA AND HAND HELD INSTRUMENTS
s CELLULAR PHONES - DIGITAL CORDLESS
PHONE
s PAGERS
s GPS
s DIGITAL CAMERAS
APPLICATION CIRCUIT
TSSOP8
ORDERING NUMBER: L6920D
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
120mΩ P-channel MOSFET and, in order to improve
the efficiency, a variable frequency control is imple-
mented.
VCC
2.5V
L1 LX
C2
SHDN
LBI
REF
78
1
5
L6920
23
46
OUT
FB
C3
LBO
GND
VOUT
3.3V
500mA
C1
D00IN1136C
May 2003
1/12
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Pages | Pages 12 | ||
Télécharger | [ L6920D ] |
No | Description détaillée | Fabricant |
L6920 | 1V HIGH EFFICIENCY SYNCRONOUS STEP UP CONVERTER | STMicroelectronics |
L6920D | 1V HIGH EFFICIENCY SYNCRONOUS STEP UP CONVERTER | STMicroelectronics |
L6920DB | Synchronous rectifier step up converter | STMicroelectronics |
L6920DC | Synchronous rectifier step up converter | STMicroelectronics |
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