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参数资料
| 型号： | LT8410IDC#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.03 A SWITCHING REGULATOR, PDSO8 |
| 封装： | 2 X 2 MM, LEAD FREE, PLASTIC, DFN-8 |
| 文件页数： | 1/16页 |
| 文件大小： | 309K |
| 代理商： | LT8410IDC#TRPBF |
LT8410/LT8410-1
1
84101fb
APPLICATIONS
n
Sensor Power
n
RF Mems Relay Power
n
General Purpose Bias
TYPICAL APPLICATION
DESCRIPTION
Ultralow Power Boost
Converter with Output
Disconnect
TheLT8410/LT8410-1areultralowpowerboostconverters
with integrated power switch, Schottky diode and output
disconnect circuitry. The parts control power delivery by
varying both the peak inductor current and switch off-
time. This control scheme results in low output voltage
ripple as well as high efficiency over a wide load range.
The quiescent current is a low 8.5μA, which is further
reduced to 0μA in shutdown. The internal disconnect
circuitry allows the output voltage to be blocked from the
input during shutdown. High value (12.4M/0.4M) resis-
tors are integrated on chip for output voltage detection,
significantlyreducinginputreferredquiescentcurrent.The
LT8410/LT8410-1alsofeaturesacomparatorbuiltintothe
SHDN pin, overvoltage protection for the CAP and VOUT
pins, built in soft-start and comes in a tiny 8-pin 2mm
×
2mm DFN package.
General Purpose Bias with Wide Input Voltage
FEATURES
n
Ultralow Quiescent Current
8.5μA in Active Mode
0μA in Shutdown Mode
n
Comparator Built into SHDN Pin
n
Low Noise Control Scheme
n
Adjustable FB Reference Voltage
n
Wide Input Range: 2.5V to 16V
n
Wide Output Range: Up to 40V
n
Integrated Power NPN Switch
25mA Current Limit (LT8410)
8mA Current Limit (LT8410-1)
n
Integrated Schottky Diode
n
Integrated Output Disconnect
n
High Value (12.4M/0.4M) Feedback Resistors
Integrated
n
Built in Soft-Start (Optional Capacitor from VREF
to GND)
n
Overvoltage Protection for CAP and VOUT Pins
n
Tiny 8-Pin 2mm
× 2mm DFN Package
SW
CAP
GND
CHIP
ENABLE
FBP
8410-1 TA01a
LT8410
2.2F
0.1F
100H
0.1F
0.1F*
VOUT = 16V
VIN
2.5V to 16V
VCC
VOUT
VREF
SHDN
604k
412k
*HIGHER VALUE CAPACITOR IS REQUIRED
WHEN THE VIN IS HIGHER THAN 5V
LOAD CURRENT (mA)
0.01
V OUT
PEAK-TO-PEAK
RIPPLE
(mV)
10
8
2
6
4
0
8410-1 TA02
10
1
0.1
VIN = 3.6V
LOAD CURRENT (mA)
0.01
EFFICIENCY
(%)
100
50
60
70
80
90
40
8410-1 TA03
100
10
0.1
1
VIN = 12V
VIN = 5V
VIN = 3.6V
Output Voltage Ripple
vs Load Current
Efficiency vs Load Current
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. Hot Swap is a trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners. Protected by U.S. Patents, including
5481178, 6580258, 6304066, 6127815, 6498466, 6611131.
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