RT2660
Typical Application Circuit
4, 5
V
16
IN
VIN
BOOT
RT2660
1V to 6V
C
C
IN
BOOT
L
V
11 to 15
OUT
17
18
SW
Enable
Mode
EN
0.6V to 2V
C
OUT
10
20
MODE
VOUT
V5IN
V
V5IN
C
COMP
5V
R
COMP
8
7
C
V5IN
COMP
VREF
R
PGOOD
19
PGOOD
PGOOD
1, 2, 3, 21 (Exposed Pad)
6
C
REF
R2
PGND
GND
R1
9
REFIN
Table 1. Mode Definitions
Mode
Resistance (k)
Light-Load Power
Saving Mode
Switching Frequency Over Current Limit (OCL)
Mode
(fSW
)
Valley (A)
1
2
3
4
5
6
7
8
0
12
600kHz
600kHz
1MHz
7.6
5.4
SKIP
PWM
22
5.4
33
1MHz
7.6
47
600kHz
600kHz
1MHz
7.6
68
5.4
100
Open
5.4
1MHz
7.6
Copyright 2018 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS2660-01 March 2018
www.richtek.com
10
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