LTC3546IUFD#PBF Linear Technology, LTC3546IUFD#PBF Datasheet - Page 5

• Manufacturer Part Number: LTC3546IUFD#PBF
• Description: IC BUCK SYNC ADJ 1A/2A DL 28QFN
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC3546IUFD#PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.6 ~ 5 V
• Current - Output: 1A, 2A
• Frequency - Switching: 2.25MHz, 0.75MHz ~ 4MHz
• Voltage - Input: 2.25 ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 28-QFN
• Dc To Dc Converter Type: Step Down
• Pin Count: 28
• Input Voltage: 5.5V
• Output Voltage: 0.6 to 5V
• Switching Freq: 750 TO 4000/2900KHz
• Output Current: 2A
• Efficiency: 96%
• Package Type: QFN EP
• Output Type: Adjustable
• Switching Regulator: Yes
• Load Regulation: 0.2%
• Line Regulation: 0.2%/V
• Mounting: Surface Mount
• Input Voltage (min): 2.25V
• Operating Temperature Classification: Automotive
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Compliant

500mA/DIV
TYPICAL PERFORMANCE CHARACTERISTICS
500mA/DIV
200mA/DIV
20mV/DIV
20mV/DIV
20mV/DIV
I
I
I
V
LOAD
V
V
LOAD
LOAD
OUT
OUT
OUT
OUT2 Burst Mode Operation
OUT1 Burst Mode Operation
SW1D CONNECTED TO SW2
V
V
I
OUT1 Burst Mode Operation
SW1D CONNECTED TO SW1
V
V
I
SW1D CONNECTED TO SW2
V
V
I
LOAD
LOAD
LOAD
IN
OUT
IN
OUT
IN
OUT
= 3.6V
= 3.6V
= 3.6V
= 2.5V
= 1.8V
= 1.8V
= 500mA
= 300mA
= 200mA
1μs/DIV
2μs/DIV
1μs/DIV
3546 G08
3546 G02
3546 G05
500mA/DIV
250mA/DIV
250mA/DIV
20mV/DIV
20mV/DIV
20mV/DIV
I
I
I
V
V
LOAD
V
LOAD
LOAD
OUT
OUT
OUT
OUT2 Pulse-Skipping Mode
Operation
OUT1 Pulse-Skipping Mode
Operation
OUT1 Pulse-Skipping Mode
Operation
SW1D CONNECTED TO SW1
V
V
I
SW1D CONNECTED TO SW2
V
V
I
SW1D CONNECTED TO SW2
V
V
I
LOAD
LOAD
LOAD
IN
OUT
IN
OUT
IN
OUT
= 3.6V
= 3.6V
= 3.6V
= 1.2V
= 1.8V
= 1.2V
= 100mA
= 200mA
= 100mA
1μs/DIV
1μs/DIV
1μs/DIV
3546 G03
3546 G09
3546 G06
250mA/DIV
500mA/DIV
250mA/DIV
20mV/DIV
20mV/DIV
20mV/DIV
I
I
I
V
V
LOAD
V
LOAD
LOAD
OUT
OUT
OUT
OUT1 Forced Continuous Mode
Operation
OUT1 Forced Continuous Mode
Operation
SW1D CONNECTED TO SW2
V
V
I
OUT2 Forced Continuous Mode
Operation
SW1D CONNECTED TO SW2
V
V
I
SW1D CONNECTED TO SW1
V
V
I
LOAD
LOAD
LOAD
IN
OUT
IN
OUT
IN
OUT
= 3.6V
= 3.6V
= 3.6V
= 1.8V
= 1.2V
= 1.2V
= 50mA
= 100mA
= 100mA
1μs/DIV
1μs/DIV
LTC3546
1μs/DIV
3546fb
5
3546 G10
3546 G07
3546 G04