LTC3251EMSE Linear Technology, LTC3251EMSE Datasheet - Page 4

• Manufacturer Part Number: LTC3251EMSE
• Description: IC CONV DC/DC SDOWN HIEFF 10MSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck), Switched Capacitor (Charge Pump)r

Specifications of LTC3251EMSE

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 0.9 ~ 1.6 V
• Current - Output: 500mA
• Frequency - Switching: 1MHz ~ 1.6MHz
• Voltage - Input: 2.7 ~ 5.5 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: -
• Other names: LTC3251EMS; LTC3251EMS

LTC3251/
LTC3251-1.2/LTC3251-1.5
TYPICAL PERFOR A CE CHARACTERISTICS
4
1.60
1.58
1.56
1.54
1.52
1.50
1.48
1.46
1.44
1.42
1.40
100
90
80
70
60
50
40
30
20
20
18
16
14
12
10
10
8
6
4
2
0
0
2.7
0.1
3
No Load Supply Current
vs Supply Voltage
(Super Burst Mode Operation)
1.5V Output Voltage
vs Supply Voltage
(Super Burst Mode Operation)
1.5V Output Efficiency vs Output
Current (Burst Mode Operation)
MD0 = V
T
A
= 25°C
V
IN
3.2
3.5
= 3.3V
IN
, MD1 = 0V
1
3.7
V
IN
V
4
I
IN
OUT
V
= 4V
V
V
IN
IN
IN
= 3.6V
10
= 5V
(mA)
4.2
(V)
(V)
4.5
4.7
100
–40°C
W
85°C
25°C
5
0mA
10mA
40mA
5.2
3251 G02
3251 G06
3251 G08
U
1000
5.5
1.30
1.28
1.26
1.24
1.22
1.20
1.18
1.16
1.14
1.12
1.10
1.60
1.58
1.56
1.54
1.52
1.50
1.48
1.46
1.44
1.42
1.40
100
90
80
70
60
50
40
30
20
10
0
2.7
0.1
1.2V Output Voltage
vs Supply Voltage
(Super Burst Mode Operation)
3
1.5V Output Voltage vs Supply
Voltage (Burst Mode Operation/
Continuous Mode)
1.2V Output Efficiency vs Output
Current (Burst Mode Operation)
MD0 = V
T
T
A
A
= 25°C
= 25°C
3.2
3.5
IN
1
, MD1 = 0V
V
IN
3.7
= 3V
4
I
OUT
V
V
IN
IN
I
I
10
OUT
OUT
I
(mA)
4.2
OUT
(V)
(V)
= 250mA
= 500mA
4.5
= 0mA
V
4.7
IN
100
V
V
= 2.7V
IN
IN
5
= 4.5V
= 3.5V
0mA
10mA
40mA
5.2
3251 G18
3251 G19
3251 G04
1000
5.5
1.300
1.280
1.260
1.240
1.220
1.200
1.180
1.160
1.140
1.120
1.100
0.805
0.785
0.780
0.800
0.795
0.790
100
60
90
80
70
50
40
30
20
10
0
2.7
0.1
1.2V Output Voltage vs Supply
Voltage (Burst Mode Operation/
Continuous Mode)
0
1.5V Output Efficiency vs Output
Current (Super Burst Mode
Operation)
FB Voltage vs Output Current
(Burst Mode Operation/
Continuous Mode)
MD0 = MD1 = V
T
A
V
= 25°C
IN
I
OUT
100
3.2
= 3.3V
= 250mA
200
1
3.7
IN
I
OUT
I
V
V
V
OUT
V
IN
IN
IN
IN
300
I
= 3.6V
(mA)
= 4V
= 5V
OUT
(mA)
I
4.2
(V)
OUT
= 500mA
= 0mA
400
10
4.7
V
OUT
T
32511215fb
A
500
= 25°C
= 1.5V
5.2
3251 G09
3251 G05
3251 G07
100
600