參數(shù)資料
型號(hào): LT3483ES6
廠商: LINEAR TECHNOLOGY CORP
元件分類(lèi): 穩(wěn)壓器
英文描述: Inverting Micropower DC/DC Converter with Schottky in ThinSOT Package
中文描述: 0.23 A SWITCHING REGULATOR, PDSO6
封裝: PLASTIC, MO-193, TSOT-23, 6 PIN
文件頁(yè)數(shù): 1/8頁(yè)
文件大?。?/td> 150K
代理商: LT3483ES6
1
LT3483
3483f
LCD Bias
Handheld Computers
Battery Backup
Digital Cameras
OLED Bias
3.6V to –8V DC/DC Converter
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
Patent pending.
Inverting Micropower
DC/DC Converter with
Schottky in ThinSOT Package
Internal 40V Schottky Diode
One Resistor Feedback (Other Resistor Inside)
Internal 40V, 200mA Power Switch
Generates Regulated Negative Outputs to –38V
Low Quiescent Current:
40
μ
A in Active Mode
<1
μ
A in Shutdown Mode
Low V
CESAT
Switch: 200mV at 150mA
Wide Input Range: 2.5V to 16V
Uses Small Surface Mount Components
Output Short-Circuit Protected
Available in a 6-Lead SOT-23 Package
APPLICATIU
Efficiency and Power Loss
FEATURES
DESCRIPTIOU
The LT
3483 is a micropower inverting DC/DC converter
with integrated Schottky and one resistor feedback. The
small package size, high level of integration and use of tiny
surface mount components yield a solution size as small
as 40mm
2
. The device features a quiescent current of only
40
μ
A at no load, which further reduces to 0.1
μ
A in
shutdown. A current limited, fixed off-time control scheme
conserves operating current, resulting in high efficiency
over a broad range of load current. A precisely trimmed
10
μ
A feedback current enables one resistor feedback and
virtually eliminates feedback loading of the output. The
40V switch enables voltage outputs up to –38V to be
generated without the use of costly transformers. The
LT3483’s low 300ns off-time permits the use of tiny low
profile inductors and capacitors to minimize footprint and
cost in space-conscious portable applications.
The LT3483 is available in the low profile (1mm) SOT-23
(ThinSOT
TM
) package.
TYPICAL APPLICATIO
U
SW
10
μ
H
D
LT3483
FB
4.7
μ
F
0.22
μ
F
V
IN
10
806k
5pF
2.2
μ
F
3483 TA01a
V
–8V
25mA
V
IN
3.6V
SHDN
GND
LOAD CURRENT (mA)
0.1
55
E
P
60
65
70
75
0.1
1
10
100
V
IN
= 3.6V
POWER
LOSS
1000
1
10
3483 TA01b
100
EFFICIENCY
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