rt8010b Richtek Technology Corporation, rt8010b Datasheet - Page 2

• Manufacturer Part Number: rt8010b
• Description: 1.5mhz, 800ma, High Efficiency Step-down Dc/dc Converter
• Manufacturer: Richtek Technology Corporation

RT8010B
Typical Application Circuit
with R2 = 75kΩ to 200kΩ,
and (R1 x C1) should be in the range between 3x10
Functional Pin Description
Function Block Diagram
www.richtek.com
2
V
Exposed Pad (9) NC
OUT
Pin No.
=
6, 7, 8
FB
V
1
2
3
4
5
REF
x
⎛
⎜
⎝
1
+
R2
R1
EN
FB
VIN
LX
AGND
PGND
Compensation
⎞
⎟
⎠
Pin Name
Amplifier
Slope
Error
2.5V to 4V
COMP
RC
V
IN
Chip Enable (Active High).
Feedback Pin.
Power Input.
Pin for Switching.
Analog Ground.
Power Ground.
No Internal Connection.
Power Good
Detector
UVLO &
Comparator
4.7uF
C
Shutdown
Current
IN
OSC &
Control
Sense
6, 7, 8
PWM
EN
3
1
VIN
EN
PGND
-6
Preliminary
RT8010B
and 6x10
V
REF
AGND
LX
FB
-6
4
2
5
for component selection.
Pin Function
Detector
Current
Control
Logic
Limit
2.2uH
L
I
R2
C1
Driver
R1
R2
C
10uF
OUT
V
OUT
VIN
DS8010B-00 July 2007
RS1
RS2
LX
PGND
AGND