LTC3728LEUH#TRPBF Linear Technology, LTC3728LEUH#TRPBF Datasheet - Page 9

• Manufacturer Part Number: LTC3728LEUH#TRPBF
• Description: IC REG SW DUAL 2PH STPDWN 32QFN
• Manufacturer: Linear Technology
• Series: PolyPhase®r
• Type: Step-Down (Buck)r

Specifications of LTC3728LEUH#TRPBF

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.8 ~ 7 V
• Current - Output: 3A
• Frequency - Switching: 250kHz ~ 550kHz
• Voltage - Input: 4.5 ~ 28 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

TYPICAL PERFORMANCE CHARACTERISTICS
31
25
35
33
29
27
–50 –25
Current Sense Pin Input Current
vs Temperature
V
OUT
= 5V
0
TEMPERATURE (°C)
3.50
3.45
3.35
3.30
3.20
3.40
3.25
25
–50
Undervoltage Lockout
vs Temperature
50
–25
75
0
TEMPERATURE (°C)
100
3728L G26
25
125
50
75
10
6
0
8
4
2
100
–50 –25
EXTV
vs Temperature
3728L G29
125
CC
Switch Resistance
0
TEMPERATURE (°C)
25
50
3.0
2.5
2.0
1.0
4.5
4.0
3.5
1.5
0.5
0
–50
75
Shutdown Latch Thresholds
vs Temperature
–25
100
3728L G27
LTC3728L/LTC3728LX
125
0
TEMPERATURE (°C)
THRESHOLD
LATCHOFF
25
LATCH ARMING
700
400
600
500
300
200
100
50
0
–50
Oscillator Frequency
vs Temperature
75
–25
100
3728L G30
0
TEMPERATURE (°C)
125
V
V
25
V
PLLFLTR
PLLFLTR
PLLFLTR
50
= 2.4V
= 1.2V
= 0V
75
100
3728L G28
3728lxfe
9
125