SC173MLTRT Semtech, SC173MLTRT Datasheet - Page 24

• Manufacturer Part Number: SC173MLTRT
• Description: IC BUCK SYNC ADJ 3A MLPD-10
• Manufacturer: Semtech
• Series: EcoSpeed™r
• Type: Step-Down (Buck)r

Specifications of SC173MLTRT

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.75 ~ 5.23 V
• Current - Output: 3A
• Frequency - Switching: 200kHz ~ 1MHz
• Voltage - Input: 3 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MLPD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: SC173MLTR

Typical Application Circuits
VOUT+
VOUT-
© 2010 Semtech Corporation
VIN+
VIN-
VOUT+
VOUT-
VIN+
VIN-
22uF/6.3v
10uF/6.3V
C2
10uF/6.3V
22uF/6.3v
C1
C1
C6
Application Circuit: Buck Converter with 1.2V out and 0 to 3A load current (Vin=5V)
Application Circuit: Buck Converter with 3.3V out and 0 to 3A load current (Vin=5V)
22uF/6.3v
C6
0.1uF/6.3V
C101
0.1uF/6.3V
C101
FB
FB
38p
38p
C10
C10
15k
R2
15k
R2
51.1k
9.09k
R6
R6
68pF
C18
68pF
C18
2.0uH
2.0uH
4.32k
L1
C19
L1
C19
10n
2.5k
10n
R5
R5
R4
R4
100k
100k
1uF/6.3V
1uF/6.3V
C4
C4
PGND
PGOOD
VIN
BST
PGND
PGOOD
LX
VIN
BST
LX
SC173
SC173
EN/PSV
EN/PSV
AGND
AGND
VDD
TON
TON
VDD
FB
FB
5.11Ohm
5.11Ohm
R1
R1
10uF/6.3V
10uF/6.3V
C5
54.9k
C5
80.6k
R3
R3
0.1uF/6.3V
0.1uF/6.3V
C501
C501
FB
Enable
FB
Enable
24