LT1612EMS8#TRPBF Linear Technology, LT1612EMS8#TRPBF Datasheet - Page 8

• Manufacturer Part Number: LT1612EMS8#TRPBF
• Description: IC CONV DC/DC PWM STEPDOWN 8MSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LT1612EMS8#TRPBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: Adj to 0.6V
• Current - Output: 500mA
• Frequency - Switching: 800kHz
• Voltage - Input: 2 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

TYPICAL APPLICATIONS
LT1612
8
2.7V TO 4.2V
125mA TO 300mA
V
OUT
I
CERAMIC
L
LOAD STEP
200mA/DIV
50mV/DIV
V
10 F
IN
C1: TAIYO-YUDEN LMK325BJ106MN
C2: TAIYO-YUDEN LMK325BJ226MN
L1: SUMIDA CD43-100
V
V
MODE = HIGH
IN
OUT
Single Li-Ion to 2V Converter
= 4V
= 2V
V
SHDN
MODE
V
IN
C
30.1k
LT1612
680pF
BOOST
GND
Transient Response
SW
FB
100 s/DIV
0.1 F
453k
1%
U
V
V
SHDN
200mA/DIV
OUT
CURRENT
INRUSH
5V/DIV
2V/DIV
10 H
20pF
L1
1%
1M
22 F
CERAMIC
V
2V
500mA
1612 TA02
OUT
1612 TA03
Inrush Current at Start-Up
0.2ms/DIV
V
OUT
I
L
100mA/DIV
20mV/DIV
85
80
75
70
65
60
55
50
MODE = LOW
Li-Ion to 2V Converter Efficiency
1
V
IN
1612 TA06
= 2.8V
LOAD CURRENT (mA)
V
10
Burst Mode Operation
IN
= 3.5V
5 s/DIV
100
V
IN
= 4.2V
1612 TA04
1000
sn1612 1612fs
1612 TA05