16
LTC3700
3700f
PART NUMBER DESCRIPTION COMMENTS
LT1375/LT1376 1.5A, 500kHz Step-Down Switching Regulators High Frequency, Small Inductor, High Efficiency
LTC1622 Low Input Voltage Current Mode Step-Down DC/DC Controller V
IN
2V to 10V, I
OUT
Up to 4.5A, Synchronizable to
750kHz Optional Burst Mode Operation, 8-Lead MSOP
LTC1624 High Efficiency SO-8 N-Channel Switching Regulator Controller N-Channel Drive, 3.5V ≤ V
IN
≤ 36V
LTC1625 No R
SENSE
TM
Synchronous Step-Down Regulator 97% Efficiency, No Sense Resistor, Current Mode
LTC1649 3.3V Input Synchronous Controller No Need for 5V Supply, Uses Standard Logic Gate
MOSFETs, I
OUT
up to 15A
LTC1702A 550kHz, 2 Phase, Dual Synchronous Controller Two Channels, Minimum C
IN
and C
OUT
, I
OUT
up to 15A
LTC1704 Synchronous Step-Down Controller Plus Linear Regulator Controller No Current Sense Required, N-Channel MOSFET Drivers,
Adjustable Soft-Start
LTC1735 Single, High Efficiency, Low Noise Synchronous Switching Controller High Efficiency 5V to 3.3V Conversion at up to 15A
LT1761 100mA, Low Noise, LDO Micropower Regulators in ThinSOT
TM
1.8V ≤ V
IN
≤ 20V, 300mV Dropout at 100mA
LTC1771 Ultralow Supply Current Step-Down DC/DC Controller 10µA Supply Current, 93% Efficiency,
1.23V ≤ V
OUT
≤ 18V, 2.8V ≤ V
IN
≤ 20V
LTC1772 Constant Frequency Current Mode Step-Down With Burst Mode Operation for Higher Efficiency
DC/DC Controller in ThinSOT at Light Load Current
LTC1773 95% Efficient Synchronous Step-Down Controller 2.65V ≤ V
IN
≤ 8.5V, 0.8V ≤ V
OUT
≤ V
IN
, Current Mode, 550kHz
LTC1778 No R
SENSE
Current Mode Synchronous Step-Down Controller Up to 97% Efficiency, 4V ≤ V
IN
≤ 36V,
0.8V ≤ V
OUT
≤ (0.9)(V
IN
), I
OUT
up to 20A
LTC1872 ThinSOT Step-Up Controller 2.5V ≤ V
IN
≤ 9.8V, 550kHz, 90% Efficiency
LTC3404 1.4MHz Monolithic Synchronous Step-Down Controller 2.65V ≤ V
IN
≤ 6V, 700mA Output Current, 8-Lead MSOP
LTC3406/LTC3406B 600mA (I
OUT
), 1.5MHz Synchronous Step-Down Converter V
IN
= 2.5V to 5.5V, 95% Efficiency, ThinSOT,
B Version: Burst Mode Defeat
No R
SENSE
and ThinSOT are trademarks of Linear Technology Corporation.
LT/TP 0203 2K • PRINTED IN USA
RELATED PARTS
LINEAR TECHNOLOGY CORPORATION 2001
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
+
8
71
6
SENSE
–
LTC3700
PGATE
9
10
V
FB
2
3
LDO
V
FB2
4
PGOOD
V
IN
V
IN2
I
TH
/RUN
5
GND
M1
L1
15µH
C2
47µF
6V
249k
80.6k
10k
220pF
D1
169k
C3
2.2µF
16V
78.7k
V
OUT2
2.5V AT
150mA
3700 TA01
V
OUT1
3.3V
AT 1A
V
IN1
5V
C1
10µF
16V
R1
0.05Ω
C1: TAIYO YUDEN EMK325BJ106MNT
C2: SANYO POSCAP 6TPA47M
C3: MURATA GRM42-6X7R225K016AL
D1: MOTOROLA MBRS130LT3
L1: COILTRONICS UP1B150
M1: Si3443DV
R1: DALE 0.25W
5V Input Supply to 3.3V/1A High Efficiency Output and 2.5V/150mA Low Noise Output
TYPICAL APPLICATIO
U
