参数资料
型号: LTC3526BEDC-2
厂商: LINEAR TECHNOLOGY CORP
元件分类: 稳压器
英文描述: 0.5 A SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO6
封装: 3 X 3 MM, PLASTIC, MO-229WEED-2, DFN-10
文件页数: 1/16页
文件大小: 298K
代理商: LTC3526BEDC-2
LTC3526-2/LTC3526B-2
1
35262b2f
500mA 2MHz Synchronous
Step-Up DC/DC Converters
in 2mm × 2mm DFN
The LTC
3526-2/LTC3526B-2 are synchronous, xed
frequency step-up DC/DC converters with output discon-
nect. Synchronous rectication enables high efciency
in the low prole 2mm × 2mm DFN package. Battery life
in single AA/AAA powered products is extended further
with an 850mV start-up voltage and operation down to
500mV once started.
A switching frequency of 2MHz minimizes solution foot-
print by allowing the use of tiny, low prole inductors
and ceramic capacitors. The current mode PWM design
is internally compensated, reducing external parts count.
The LTC3526-2 features Burst Mode operation at light load
conditions, while the LTC3526B-2 features continuous
switching. Anti-ring circuitry eliminates EMI concerns by
damping the inductor in discontinuous mode. Additional
features include a low shutdown current of under 1A and
thermal shutdown.
The LTC3526-2/LTC3526B-2 are housed in a 6-pin
2mm × 2mm × 0.75mm DFN package.
Medical Instruments
Flash-Based MP3 Players
Noise Canceling Headphones
Wireless Mice
Bluetooth Headsets
Delivers 3.3V at 100mA from a Single Alkaline/
NiMH Cell or 3.3V at 200mA from Two Cells
VIN Start-Up Voltage: 850mV
VIN Operating Range: 0.5V to 5V
1.6V to 5.25V VOUT Range
Up to 94% Efciency
Output Disconnect
2MHz Fixed Frequency Operation
VIN > VOUT Operation
Integrated Soft-Start
Current Mode Control with Internal Compensation
Burst Mode
Operation with 9A Quiescent Current
(LTC3526-2)
Low Noise PWM Operation (LTC3526B-2)
Internal Synchronous Rectier
Logic Controlled Shutdown (IQ < 1A)
Anti-Ringing Control
Low Prole (2mm × 2mm × 0.75mm) DFN-6 Package
APPLICATIO S
U
FEATURES
DESCRIPTIO
U
TYPICAL APPLICATIO
U
SW
VIN
1.78M
2.2
mH
1M
1
mF
4.7
mF
35262b2f TA01a
LTC3526-2
SHDN
VOUT
FB
VIN
1.6V TO 3.2V
VOUT
3.3V
200mA
OFF ON
GND
LOAD CURRENT (mA)
0.01
40
EFFICIENCY
(%)
POWER
LOSS
(mW)
50
60
70
80
0.1
1
10
100
1000
35262b2f TA01b
30
20
10
0
90
100
1
10
100
0.1
0.01
1000
EFFICIENCY
POWER LOSS
VIN = 2.4V
LTC3526-2 Efciency and Power Loss vs Load Current
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
Burst Mode is a registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners. Patents pending.
相关PDF资料
PDF描述
LTC3526EDC 0.5 A SWITCHING CONTROLLER, 1300 kHz SWITCHING FREQ-MAX, PDSO6
LTC3526BEDC 0.5 A SWITCHING CONTROLLER, 1300 kHz SWITCHING FREQ-MAX, PDSO6
LTC3526LBEDC-2#PBF SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO6
LTC3526LEDC-2#PBF SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO6
LTC3526LBEDC-2#TRPBF SWITCHING REGULATOR, 2400 kHz SWITCHING FREQ-MAX, PDSO6
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LTC3526BEDC-2-TRPBF 制造商:LINER 制造商全称:Linear Technology 功能描述:500mA 2MHz Synchronous Step-Up DC/DC Converters in 2mm × 2mm DFN
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