LTC3548AEMSE-PBF Просмотр технического описания (PDF) - Linear Technology
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LTC3548AEMSE-PBF Datasheet PDF : 20 Pages
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LTC3548A
TYPICAL APPLICATIONS
VIN = 2.5V TO 5.5V
R6
4.7M
CIN
10μF
C4
680pF VOUT2
2.5V
400mA
L2
10μH
C2 22pF
VIN
POR
RUN/SS2 RUN/SS1
LTC3548A
SW2
SW1
R7
100k POWER-ON
RESET
L1
4.7μH
C1 22pF
R5
4.7M
C3
VOUT1 680pF
1.2V
800mA
COUT2
10μF
R4
887k
R3
280k
VFB2
VFB1
MODE/SYNC GND
CIN, COUT1, COUT2: TAIYO YUDEN JMK316BJ106ML
R1 R2
604k 604k
COUT1
10μF
3548A F04a
L1: TDK VLF3012ST-4R7MR91
L2: TDK VLF3012ST-100MR59
Figure 4. Low Ripple Buck Regulators with Soft-Start
Efficiency vs Load Current
100
90 2.5V
80
1.2V
70
60
50
40
30
20 VIN = 3.3V
10 Burst Mode OPERATION
NO LOAD ON OTHER CHANNEL
0
1
10
100
LOAD CURRENT (mA)
1000
3548A F04b
3548af
17
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