LTC3548-2(RevA) View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC3548-2
(Rev.:RevA)
(Rev.:RevA)
Linear Technology
LTC3548-2 Datasheet PDF : 16 Pages
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LTC3548-2
TYPICAL APPLICATIO
2mm Height Lithium-Ion Single Inductor Buck-Boost Regulator and a Buck Regulator
VOUT2
3.3V
100mA
+
D1
M1
VIN
2.8V TO 4.2V
C1
10µF
L2
15µH
C5 22pF
RUN2 VIN RUN1
MODE/SYNC
POR
LTC3548-2
SW2
SW1
R5
100k
POWER-ON
RESET
L1
2.2µH
VOUT1
1.8V
800mA
C6
22µF
C3
4.7µF
R4
887k
VFB2
R3
196k
VOUT1
GND
C1, C2: TAIYO YUDEN JMK316BJ106ML
C3: MURATA GRM21BR60J475KA11B
C6: KEMET C1206C226K9PAC
D1: PHILIPS PMEG2010
L1: MURATA LQH32CN2R2M33
L2: TOKO A914BYW-150M (D52LC SERIES)
M1: SILICONIX Si2302DS
C2
10µF
35482 TA03a
Efficiency vs Load Current
90
80
70
4.2V
3.6V
60
2.8V
50
40 VOUT = 3.3V
Burst Mode OPERATION
NO LOAD ON OTHER CHANNEL
30
1
10
100
LOAD CURRENT (mA)
1000
35482 TA03b
Efficiency vs Load Current
100
95
2.8V
90
85
4.2V
3.6V
80
75
70
65
VOUT = 1.8V
Burst Mode OPERATION
NO LOAD ON OTHER CHANNEL
60
1
10
100
LOAD CURRENT (mA)
1000
3548 TA03c
RELATED PARTS
PART NUMBER
LTC1878
LT1940
LTC3405/LTC3405A
LTC3406/LTC3406B
LTC3407/LTC3407-2
LTC3410/LTC3410B
LTC3411
LTC3412/LTC3412A
LTC3414
LTC3548/LTC3548-1
DESCRIPTION
600mA (IOUT), 550kHz,
Synchronous Step-Down DC/DC Converter
Dual Output 1.4A(IOUT), Constant 1.1MHz,
High Efficiency Step-Down DC/DC Converter
300mA (IOUT), 1.5MHz,
Synchronous Step-Down DC/DC Converters
600mA (IOUT), 1.5MHz,
Synchronous Step-Down DC/DC Converters
600mA/1.5MHz, 800mA/2.25MHz
Dual Synchronous Step-Down DC/DC Converter
300mA (IOUT), 2.25MHz,
Synchronous Step-Down DC/DC Converter
1.25A (IOUT), 4MHz,
Synchronous Step-Down DC/DC Converter
2.5A/3A (IOUT), 4MHz,
Synchronous Step-Down DC/DC Converter
4A (IOUT), 4MHz,
Synchronous Step-Down DC/DC Converter
800mA/400mA (IOUT), Dual 2.25MHz,
Synchronous Step-Down DC/DC Converter
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
COMMENTS
95% Efficiency, VIN: 2.7V to 6V, VOUT(MIN) = 0.8V, IQ = 10µA,
ISD <1µA, MSOP-8 Package
VIN: 3V to 25V, VOUT(MIN) = 1.2V, IQ = 2.5mA, ISD = <1µA,
TSSOP-16E Package
96% Efficiency, VIN: 2.5V to 5.5V, VOUT(MIN) = 0.8V, IQ = 20µA,
ISD <1µA, ThinSOT Package
96% Efficiency, VIN: 2.5V to 5.5V, VOUT(MIN) = 0.6V, IQ = 20µA,
ISD <1µA, ThinSOT Package
96% Efficiency, VIN: 2.5V to 5.5V, VOUT(MIN) = 0.6V, IQ = 40µA,
ISD <1µA, MSE, DFN Package
95% Efficiency, VIN: 2.5V to 5.5V, VOUT(MIN) = 0.8V, IQ = 26µA,
ISD <1µA, SC70 Package
95% Efficiency, VIN: 2.5V to 5.5V, VOUT(MIN) = 0.8V, IQ = 60µA,
ISD <1µA, MSOP-10 Package
95% Efficiency, VIN: 2.5V to 5.5V, VOUT(MIN) = 0.8V, IQ = 60µA,
ISD <1µA, TSSOP-16E Package
95% Efficiency, VIN: 2.25V to 5.5V, VOUT(MIN) = 0.8V, IQ = 64µA,
ISD <1µA, TSSOP-28E Package
95% Efficiency, VIN: 2.5V to 5.5V, VOUT(MIN) = 0.6V, IQ = 40µA,
ISD <1µA, DFN Package
35482fa
LT 0406 REV A • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2006
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