LTC3809EMSE-1 Linear Technology, LTC3809EMSE-1 Datasheet - Page 5

• Manufacturer Part Number: LTC3809EMSE-1
• Description: IC CTRLR DC/DC SYNC 10-MSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC3809EMSE-1

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.6 ~ 9.8 V
• Current - Output: 1A
• Frequency - Switching: 550kHz
• Voltage - Input: 2.75 ~ 9.8 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP Exposed Pad, 10-HMSOP, 10-eMSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

TYPICAL PERFORMANCE CHARACTERISTICS
Start-Up with Coincident Tracking
(V
V
R
R
FIGURE 8 CIRCUIT
IN
TA
TB
OUT
0.606
0.602
0.600
0.596
0.594
0.604
0.598
= 4.2V
= 590
= 1.18k
= 0V at 0s)
–60
Regulated Feedback Voltage
vs Temperature
–40
10ms/DIV
–20
TEMPERATURE (°C)
0
130
135
120
115
125
20
–60
Maximum Current Sense
Threshold vs Temperature
IPRG = FLOAT
40
–40
38091 G09
60
–20
V
2.5V
V
1.8V
500mV/DIV
TEMPER
x
OUT
80
38091 G012
0
100
20
ATURE (°C)
Start-Up with Coincident Tracking
(V
V
R
R
FIGURE 8 CIRCUIT
IN
TA
TB
40
OUT
= 4.2V
= 590
= 1.18k
2.45
2.40
2.30
2.25
2.20
2.15
2.55
2.50
2.35
60
= 0.8V at 0s)
–60
Undervoltage Lockout Threshold
vs Temperature
80
38091 G15
–40
10ms/DIV
100
–20
TEMPERATURE (°C)
V
V
IN
0
IN
FALLING
RISING
20
40
1.04
1.02
1.00
0.98
0.96
0.94
38091 G10
–60
60
TRACK/SS Start-Up Current
vs Temperature
TRACK/SS = 0V
V
2.5V
V
1.8V
500mV/DIV
x
OUT
–40
80
T
38091 G13
A
–20
= 25°C, unless otherwise noted.
100
TEMPERATURE (°C)
Start-Up with Ratiometric Tracking
(V
V
R
R
FIGURE 8 CIRCUIT
IN
0
TA
TB
OUT
= 4.2V
= 590
= 1.69k
20
1.05
1.00
1.20
1.15
1.10
= 0V at 0s)
–60
40
Shutdown (RUN) Threshold
vs Temperature
–40
60
10ms/DIV
–20
80
38091 G16
TEMPERATURE (°C)
LTC3809-1
100
0
20
38091 G11
40
60
V
2.5V
V
1.8V
500mV/DIV
x
OUT
80
38091 G14
38091fc
5
100