LT1765ES8#TR Linear Technology, LT1765ES8#TR Datasheet - Page 17

• Manufacturer Part Number: LT1765ES8#TR
• Description: IC REG SW ADJ 3A STEPDOWN 8SOIC
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LT1765ES8#TR

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.2 ~ 20 V
• Current - Output: 3A
• Frequency - Switching: 1.25MHz
• Voltage - Input: 3 ~ 25 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -
• Other names: LT1765ES8TR; LT1765ES8TR

APPLICATIONS INFORMATION
–9V AT 1A
OUTPUT
INPUT
22μF
5V
Figure 12. Positive-to-Negative Low Output Ripple Converter
L1: CDRH5D28-2R5
BOLD LINES INDICATE HIGH CURRENT PATHS
S
S
L1: CDRH6D28-3R0
C3
22μF
16V X5R
CERAMIC
C3
2.2μF
16V X5R
CERAMIC
V
SHDN
IN
V
SHDN
IN
GND
Figure 13. Negative Boost Converter
GND
S
S
LT1765FE
4700pF
BOOST
LT1765-5
SYNC
1800pF
BOOST
U1
SYNC
U1
C
6.8k
C
C
R
2.4k
C
C
R
C
V
S
S
C
V
V
C
100pF
SW
V
FB
100pF
SW
FB
0.22μF
C
0.22μF
F
C
F
C2
C2
S
LT1765/LT1765-1.8/LT1765-2.5/
S
S
S
D1
UPS120
D1
B220A
CMDSH-3
10k
R2
D2
3μH
CMDSH-3
L1
2.5μH
S
D2
L1
D3
B220A
64.9k
R1
LT1765-3.3/LT1765-5
C1
10μF
6.3V X5R
CERAMIC
OUTPUT
–5V AT 1A
S
S
S
1765 F12
C1
2.2μF
6.3V X5R
INPUT
–5V
1765 F13
17
1765fd