Step-Down Converter. RT8097C Datasheet

RT8097C Converter. Datasheet pdf. Equivalent

RT8097C Datasheet
Recommendation RT8097C Datasheet
Part RT8097C
Description 6V CMCOT Synchronous Step-Down Converter
Feature RT8097C; RT8097C 2A, 1MHz, 6V CMCOT Synchronous Step-Down Converter General Description The RT8097C is a hi.
Manufacture Richtek
Datasheet
Download RT8097C Datasheet




Richtek RT8097C
RT8097C
2A, 1MHz, 6V CMCOT Synchronous Step-Down Converter
General Description
The RT8097C is a high efficiency synchronous step-
down DC-DC converter. Its input voltage range is from
2.7V to 6V and provides an adjustable regulated output
voltage from 0.6V to 3.4V while delivering up to 2A of
output current.
The internal synchronous low on-resistance power
switches increase efficiency and eliminate the need for
an external Schottky diode. The Current Mode
Constant-On-time (CMCOT) operation with internal
compensation allows the transient response to be
optimized over a wide range of loads and output
capacitors. The RT8097C is available in the SOT-23-
5/6 package.
Features
Efficiency Up to 95%
RDS(ON) 100mHS / 70mLS
VIN Range 2.7V to 6V
VREF 0.6V with 1.2% Accuracy at 25C
CMCOTControl Loop Design for
Best
Transient Response, Robust Loop Stability with
Low-ESR (MLCC) COUT
Soft-Start 1.2ms; PGOOD Function in SOT-23-6
Power Saving at Light Load
Applications
STB, Cable Modem, & xDSL Platforms
LCD TV Power Supply & Metering Platforms
General Purpose Point of Load (POL)
Ordering Information
RT8097C
Package Type
B : SOT-23-5
E : SOT-23-6
Lead Plating System
G : Green (Halogen Free and Pb Free)
UVP Option
H : Hiccup
L : Latched-Off
C : PSM/PWM
Note :
Richtek products are :
RoHS compliant and compatible with the current
requirements of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
Simplified Application Circuit
VIN
CIN
RT8097C
VIN LX
L
VOUT
EN R1 COUT
PG* FB
GND
R2
*For SOT-23-6 Package Only
Copyright © 2019 Richtek Technology Corporation. All rights reserved.
DS8097C-09 June 2019
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1



Richtek RT8097C
RT8097C
Pin Configuration
(TOP VIEW)
FB VIN
54
23
EN GND LX
SOT-23-5
FB PG VIN
654
23
EN GND LX
Marking Information
RT8097CHGB
5P=DNN
5P= : Product Code
DNN : Date Code
RT8097CLGB
5N=DNN
5N= : Product Code
DNN : Date Code
RT8097CHGE
2L=DNN
2L= : Product Code
DNN : Date Code
RT8097CLGE
2J=DNN
2J= : Product Code
DNN : Date Code
SOT-23-6
Functional Pin Description
Pin No.
SOT-23-5 SOT-23-6
11
22
33
Pin Name
EN
GND
LX
Enable control input.
Power ground.
Switch node.
Pin Function
4
4 VIN
Supply voltage input. The RT8097C operates from a 2.7V to 6V input.
5
6 FB
Feedback voltage input. An external resistor divider from the output to
GND, tapped to the FB pin, sets the output voltage.
Power good indicator. The output of this pin is an open-drain with external
--
5 PG
pull-up resistor. PG is pulled up when the FB voltage is within 90%,
otherwise it is LOW.
Copyright © 2019 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS8097C-09 June 2019



Richtek RT8097C
Functional Block Diagram
For SOT-23-5 Package
EN
VIN
UVLO
OTP
Shut Down
Control
Ton LX
Error
Comparator
FB - Amplifier Logic
VREF +
+ Control Driver
-
RC
CCOMP
Current
Limit
Detector
Current
Sense
LX
For SOT-23-6 Package
EN
VIN
UVLO
OTP
Shut Down
Control
Ton LX
Error
FB
VREF
- Amplifier Comparator
++
RC -
Logic
Control
Driver
CCOMP
Current
Limit
Detector
+
- Current LX
Sense
PG
RT8097C
VIN
LX
GND
VIN
LX
GND
Copyright © 2019 Richtek Technology Corporation. All rights reserved.
DS8097C-09 June 2019
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
3







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