SDB842X设备是高性能，固定频率，电流模式PWM升压 DC-DC转换器
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2024-04-18
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The SDB842X is available in the small SOP-8(EP)
frequency, current-mode PWM step-up DC-DC
Greater than 92% Efficiency
Shouding
SDB842X
MOSFETs. The SDB842X includes an integrated
The SDB842X devices are high-performance,fixed
PWM Step-Up DC-DC Converter
Features
Adjustable Output Voltage Up to 24V
Internal 24V Power MOSFET
520kHz Frequency
Built-in Over-Voltage Protection (OVP)
Open Protection
Programmable Soft-Start Function
Thermal Shutdown
Peak Current 3A,4.5A,5.5A
s
Under-Voltage-Lockout
Over-Current Protection
SOP-8(EP) Package
TFT LCD Monitors
Battery-Powered Equipment
Set-Top Boxes
DSL and Cable Modems and Routers
The utilizes simple external loop
compensation allowing optimization between
component size, cost, and AC performance across
a wide range of applications. Additional functions
include an externally programmable soft-start
function for easy inrush current control, internal
over-voltage protection (OVP),cycle-by-cyc le
current limit protection, under voltage lock-out and
thermal shutdown.
package.
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Applications
General Description
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converter that incorporate intern al power
power MOSFET that supports peak currents of up
to 3A/4.5A/5.5A.
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Typical Application
1
AGND
VIN
SW
SS
COMP
PGND
EN
FB
C3
L1
6.8 Hμ
1μF
SS34
C2
10μF
C6
47pF
R3
51k
C7
2.2nF
C8
10nF
R1
R2
C4
10uF
VIN
VOUT
3.6V~5.5V
12V/800mA
85k
10k
C1
470μF
C5
470uF
SDB842X
SDB842X
SD09/2012.1
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