參數(shù)資料
型號(hào): LT3407-2
廠商: Linear Technology Corporation
英文描述: Dual Synchronous,400mA/800mA, 2.25MHz Step-Down DC/DC Regulator
中文描述: 雙同步,400mA/800mA,2.25MHz降壓直流/直流穩(wěn)壓器
文件頁(yè)數(shù): 14/16頁(yè)
文件大?。?/td> 239K
代理商: LT3407-2
LTC3548
14
3548f
TYPICAL APPLICATIO S
RUN2
V
IN
V
IN
= 3.6V
TO 5.5V
V
OUT2
= 3.3V
V
= 1.8V
AT 800mA
RUN1
POR
SW1
V
FB1
GND
V
FB2
SW2
MODE/SYNC
LTC3548
C1*
10
μ
F
R5
100k
POWER-ON
RESET
C4, 33pF
C5, 68pF
L1
2.2
μ
H
L2
4.7
μ
H
R4
887k
R2
604k
R1
301k
R3
196k
C3
4.7
μ
F
C2
10
μ
F
3548 TA07
C1, C2: MURATA GRM219R60J106KE19
C3: MURATA GRM219R60J475KE19
L1: COILTRONICS LPO3310-222MX
L2: COILTRONICS LPO3310-472MX
*IF C1 IS GREATER THAN 3" FROM POWER SOURCE,
ADDITIONAL CAPACITANCE MAY BE REQUIRED.
1mm Profile Core and I/O Supplies
Efficiency vs Load Current
LOAD CURRENT (mA)
1
E
100
95
90
85
80
75
70
65
60
10
100
1000
3548
TA08
3.3V
1.8V
V
= 5V
Burst Mode OPERATION
NO LOAD ON OTHER CHANNEL
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