LTC1625IGN#TR Linear Technology, LTC1625IGN#TR Datasheet - Page 5

• Manufacturer Part Number: LTC1625IGN#TR
• Description: IC SW REG STEP-DOWN SYNC 16-SSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC1625IGN#TR

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.19 ~ 36 V
• Current - Output: 50mA
• Frequency - Switching: 150kHz
• Voltage - Input: 3.7 ~ 36 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -
• Other names: LTC1625IGNTR; Q1127755

TYPICAL PERFOR A CE CHARACTERISTICS
50mV/DIV
– 0.25
– 0.50
– 0.75
–1.00
–1.50
–1.25
200
150
100
V
50
OUT
0
0
– 40
0
FCB Pin Current vs Temperature
Maximum Current Sense Voltage
vs Duty Cycle
Transient Response
V
V
I
FIGURE 1 CIRCUIT
LOAD
IN
OUT
–15
= 20V
= 5V
= 1A TO 4A
0.2
10
TEMPERATURE ( C)
DUTY CYCLE
0.4
35
200 s/DIV
60
0.5
85
W
0.8
110
1625 G13
1625 G10
U
1625 F07
135
1.0
50mV/DIV
V
145
160
155
150
140
OUT
– 2
– 5
– 1
– 3
– 4
0
– 40
–40 –15
Maximum Current Sense Voltage
vs Temperature
RUN/SS Pin Current
vs Temperature
V
V
I
Transient Response
(Burst Mode Operation)
FIGURE 1 CIRCUIT
LOAD
IN
OUT
= 20V
–15
= 5V
= 50mA TO 1A
10
10
TEMPERATURE ( C)
TEMPERATURE ( C)
35
35
500 s/DIV
60
60
85
85
110
110
1625 G11
1625 G14
1625 F08
135
135
100mV/DIV
INDUCTOR
CURRENT
50mV/DIV
RUN/SS
2A/DIV
2V/DIV
300
250
200
150
100
V
50
OUT
I
0
TH
– 40
Oscillator Frequency
vs Temperature
Soft Start:
Load Current vs Time
V
V
R
FIGURE 1 CIRCUIT
Burst Mode Operation
V
V
I
FIGURE 1 CIRCUIT
LOAD
IN
OUT
IN
OUT
LOAD
–15
= 20V
= 20V
= 5V
= 5V
= 50mA
= 1
10
TEMPERATURE ( C)
SYNC = 1.5V
SYNC = 0V
35
20ms/DIV
50 s/DIV
LTC1625
60
85
110
1625 G12
5
1625 F06
1625 F09
135