ltc1875egn-trpbf Linear Technology Corporation, ltc1875egn-trpbf Datasheet - Page 18

• Manufacturer Part Number: ltc1875egn-trpbf
• Description: 15?a Quiescent Current 1.5a Monolithic Synchronous Step-down Regulator
• Manufacturer: Linear Technology Corporation

LTC1875
18
TYPICAL APPLICATIO
POWER
BOLD LINES INDICATE HIGH CURRENT PATHS
GOOD
C
C
L1: TOKO A921CY-4R7M
*1.5A IS THE MAXIMUM OUTPUT CURRENT
C
0.1 F
C
220pF
IN1
OUT
C2
SVIN
, C
: TDK CERAMIC C4532X5R0J476M
0.1 F
IN2
Single Li-Ion to 1.8V/1.5A Regulator Using All Ceramic Capacitors
C
R
100k
: TAIYO YUDEN CERAMIC JMK316BJ106ML
SS
R
PG
1M
SS
R
150k
C
C
47pF
U
C1
14
16
2
4
PGOOD
RUN/SS
PLL_LPF
I
TH
100
90
80
70
60
50
40
SV
0.1
IN
13
LTC1875
V
L = 4.7 H
OUT
Efficiency vs Output Current
SYNC/MODE
= 1.8V
1
PGND
PGND
SGND
OUPUT CURRENT (mA)
15
SWN
SWN
SWP
SWP
PV
PV
V
FB
IN
IN
R
10
SVIN
8
9
7
10
5
12
6
11
3
1
10
V
V
IN
IN
= 3.3V
= 4.2V
R2
412k
R1 523k
100
10 F
4.7 H
C
IN1
L1
1875 TA02a
1000
C
47 F
OUT
C
10 F
IN2
1875 TA02
V
GND
V
1.8V/1.5A
IN
OUT
3V TO 4.2V
*
1875f