LTC3448EMS8E Linear Technology, LTC3448EMS8E Datasheet - Page 15

• Manufacturer Part Number: LTC3448EMS8E
• Description: IC CONV DC/DC SYNC STEPDWN 8MSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC3448EMS8E

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.6 ~ 5.2 V
• Current - Output: 600mA
• Frequency - Switching: 1.5MHz ~ 2.25MHz
• Voltage - Input: 2.5 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP Exposed Pad, 8-HMSOP, 8-eMSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

Note: Performance data measured on the LTC3448 with external resistors
TYPICAL APPLICATIO S
TO 5.5V
AC COUPLED
100mV/DIV
100mA/DIV
500mA/DIV
2.7V
V
IN
I
V
LOAD
OUT
I
L
V
V
I
LOAD
C
4.7µF
CER
Single Li-Ion 1.5V/600mA Regulator for
IN
OUT
IN
High Efficiency and Small Footprint
= 3.6V
= 1.5V
= 100µA TO 200mA
C
C
*MURATA LQH32CN2R2M33
IN
OUT
4
8
6
7
: TAIYO YUDEN CERAMIC JMK212BJ475MG
V
RUN
FREQ
SYNC
: TAIYO YUDEN CERAMIC JMK212BJ475MG
IN
LTC3448
GND
MODE
Load Step
9
V
3448 TA03
SW
OUT
20µs/DIV
V
FB
5
2
3
1
2.2µH*
U
22pF
474k
216k
3448 TA05
C
15µF
OUT
V
1.5V
OUT
AC COUPLED
100mV/DIV
250mA/DIV
500mA/DIV
I
V
LOAD
OUT
I
L
100
V
V
I
90
80
70
60
50
40
30
20
10
0.0001
LOAD
0
IN
OUT
= 3.6V
V
T
= 1.5V
= 50mA TO 600mA
A
OUT
= 25°C
Efficiency vs Output Current
= 1.5V
0.001
LOAD CURRENT (A)
Load Step
20µs/DIV
0.01
0.1
V
V
V
IN
IN
IN
= 2.7V
= 3.6V
= 4.2V
23448 G03
3448 TA06
LTC3448
1
15
3448f