LT3481HDD Linear Technology, LT3481HDD Datasheet - Page 19

• Manufacturer Part Number: LT3481HDD
• Description: SW REG, 36V, 2A, 2.8MHZ, SD, 10DFN
• Manufacturer: Linear Technology

Specifications of LT3481HDD

• Primary Input Voltage: 34V
• No. Of Outputs: 1
• Output Voltage: 20V
• Output Current: 2A
• Voltage Regulator Case Style: DFN
• No. Of Pins: 10
• Operating Temperature Range: -40°C To +150°C
• Svhc: No SVHC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TYPICAL APPLICATIONS
TRANSIENT TO 36V
4.4V TO 34V
4V TO 34V
8.6V TO 22V
4.7μF
4.7μF
V
V
IN
IN
2.2μF
V
IN
D1: DIODES INC. DFLS240L
D2: MBR0540
L: TAIYO YUDEN NP06DZB4R7M
D: DIODES INC. DFLS240L
L: TAIYO YUDEN NP06DZB4R7M
220pF
330pF
22.1k
16.2k
D: DIODES INC. DFLS240L
L: SUMIDA CDRM4D22/HP-2R2
330pF
20k
84.5k
60.4k
ON OFF
ON OFF
16.9k
ON OFF
5V, 2MHz Step-Down Converter
f = 600kHz
3.3V Step-Down Converter
2.5V Step-Down Converter
f = 800kHz
RUN/SS
V
RT
PG
f = 2MHz
RUN/SS
V
RT
PG
C
C
RUN/SS
V
V
RT
PG
V
IN
C
IN
LT3481
V
GND
LT3481
GND
IN
LT3481
GND
BD
BOOST
BD
BOOST
BIAS
BIAS
SW
BD
SW
FB
BOOST
FB
BIAS
SW
FB
200k
200k
1μF
D1
0.47μF
D
200k
0.47μF
D
D2
196k
324k
4.7μH
4.7μH
590k
L
L
2.2μH
3481 TA04
3481 TA03
L
3481 TA05
47μF
V
2.5V
2A
22μF
V
3.3V
2A
OUT
OUT
10μF
V
5V
2A
OUT
LT3481
19
3481fb