LTC3251EMSE Linear Technology, LTC3251EMSE Datasheet - Page 5

• 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

TYPICAL PERFOR A CE CHARACTERISTICS
20mV/DIV (AC)
I
OUT
20mV/DIV
V
IN
450mA
50mA
V
V
(AC)
4.5V
3.5V
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
OUT
OUT
2.7
MD0/MD1 Input Threshold Voltage
vs Supply Voltage
Supply Transient Response
(Continuous Mode)
T
C
I
V
Output Transient Response
(Continuous Mode)
T
C
V
OUT
A
A
OUT
OUT
OUT
OUT
= 25°C
= 25°C
= 250mA
= 10µF X5R 6.3V
= 1.5V
= 10µF X5R 6.3V
= 1.5V
3.2
3.7
W
20µs/DIV
10µs/DIV
V
IN
4.2
(V)
U
–40°C
25°C
85°C
4.7
5.2
3251 G10
3251 G15
3251 G13
10mV/DIV (AC)
10mV/DIV (AC)
I
OUT
LTC3251-1.2/LTC3251-1.5
DISABLED
20mV/DIV
ENABLED
SPREAD
SPREAD
450mA
SPECT
SPECT
50mA
V
(AC)
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
OUT
2.7
Output Transient Response
(Burst Mode Operation)
T
C
V
LTC3251-1.5 Output Voltage
Ripple
T
C
I
V
Max/Min Oscillator Frequency
vs Supply Voltage
OUT
A
OUT
OUT
A
OUT
OUT
= 25°C
= 25°C
= 500mA
= 10µF X5R 6.3V
= 1.5V
= 10µF X5R 6.3V
= 1.5V
3.2
–40°C MAX
–40°C MIN
3.7
200ns/DIV
10µs/DIV
V
IN
4.2
(V)
25°C MAX
85°C MAX
85°C MIN
25°C MIN
4.7
LTC3251/
5.2
3251 G11
3251 G14
3251 G16
20mV/DIV
V
32511215fb
IN
V
(AC)
OUT
5