LTC3251EMSE Linear Technology, LTC3251EMSE Datasheet - Page 14

• 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
14
TYPICAL APPLICATIO S
1-CELL
3-CELL
Li-Ion
NiMH
OR
0.9V Output Continuous/Burst Mode Operation with Shutdown
U
3.3V
OFF ON
V
IN
OFF ON
Spread Spectrum Operation with Shutdown
1µF
1µF
1µF
3.3V to 1.4V Conversion, Continuous
1µF
5,11
5,11
2
3
4
2
3
4
V
C1
C1
GND
IN
MD0 MD1
+
–
LTC3251
V
C1
C1
GND
IN
MD0 MD1
1
+
–
LTC3251
1
V
OUT
C2
C2
9
FB
V
+
–
OUT
C2
C2
9
FB
7
8
6
10
+
–
7
8
6
10
73.2k
1µF
536k
1µF
4.12k
5.36k
3251 TA05
3251 TA03
10µF
5pF
10µF
V
I
OUT
OUT
≤ 350mA
V
= 1.4V
OUT
500mA
= 0.9V
4.7µF
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