Step-Down Converter. RT6296F Datasheet


RT6296F Converter. Datasheet pdf. Equivalent


Part Number

RT6296F

Description

17V Current Mode Synchronous Step-Down Converter

Manufacture

Richtek

Total Page 15 Pages
Datasheet
Download RT6296F Datasheet


RT6296F
RT6296F
2A, 17V Current Mode Synchronous Step-Down Converter
General Description
The RT6296F is a high-efficiency, 2A current mode
synchronous step-down DC-DC converter with a wide
input voltage range from 4.5V to 17V. The device
integrates 100mhigh-side and 40mlow-side
MOSFETs to achieve high efficiency conversion. The
current mode control architecture supports fast
transient response and internal compensation. The
RT6296F provides power good pin to be an output
voltage ready indicator. A cycle-by-cycle current limit
function provides protection against shorted output.
The RT6296F provides complete protection functions
such as input under-voltage lockout, output
under-voltage protection, over-current protection, and
thermal shutdown. The PWM frequency is adjustable
by the EN/SYNC pin. The RT6296F is available in the
TSOT-23-8 (FC) package.
Ordering Information
RT6296F
Package Type
J8F : TSOT-23-8 (FC)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Features
4.5V to 17V Input Voltage Range
2A Output Current
Internal N-Channel MOSFETs
Current Mode Control
Fixed Switching Frequency : 500kHz
Synchronous to External Clock : 200kHz to 2MHz
Cycle-by-Cycle Current Limit
Internal Soft-Start Function
Power Saving Mode at Light Load
Power Good Indicator
Input Under-Voltage Lockout
Output Under-Voltage Protection
Thermal Shutdown
RoHS Compliant and Halogen Free
Applications
Industrial and Commercial Low Power Systems
Computer Peripherals
LCD Monitors and TVs
Set-top Boxes
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.
Marking Information
0B=DNN
0B= : Product Code
DNN : Date Code
Simplified Application Circuit
VIN
Enable
C1
C2 R3
RT6296F
VIN BOOT
C3
SW
EN/SYNC
PVCC
R5
FB
PG GND
L1
R1
R2
VOUT
C4
Copyright © 2018 Richtek Technology Corporation. All rights reserved.
DS6296F-03 May 2018
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1

RT6296F
RT6296F
Pin Configuration
(TOP VIEW)
87 6 5
2 34
TSOT-23-8 (FC)
Functional Pin Description
Pin No.
1
2
3
Pin Name
PG
VIN
SW
Pin Function
Power good output. This pin is an open drain which can be connected to
PVCC by a resistor. If output voltage achieve 90% of the normal voltage, the
PG pin will go high after 400s delay.
Power input. Support 4.5V to17V Input Voltage. Must bypass with a ceramic
capacitor at this pin.
Switch node. Connect to external L-C filter.
4 GND
System ground.
5 BOOT
Bootstrap supply for high-side gate driver. Connect a 0.1F ceramic capacitor
between the BOOT and SW pins.
Enable control input. High = Enable. Apply an external clock to adjust the
6
EN/SYNC
switching frequency. If using pull high resistor connected to VIN, the
recommended value range is 60kto 300k.
7 PVCC
5V Bias supply output. Connect a minimum of 0.1F capacitor to ground.
8 FB
Feedback voltage input. The pin is used to set the output voltage of the
converter to regulate to the desired voltage via a resistive divider. Feedback
reference = 0.807V.
Copyright © 2018 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS6296F-03 May 2018


Features RT6296F 2A, 17V Current Mode Synchronou s Step-Down Converter General Descript ion The RT6296F is a high-efficiency, 2 A current mode synchronous step-down DC -DC converter with a wide input voltage range from 4.5V to 17V. The device int egrates 100m high-side and 40m lo w-side MOSFETs to achieve high efficien cy conversion. The current mode control architecture supports fast transient r esponse and internal compensation. The RT6296F provides power good pin to be a n output voltage ready indicator. A cyc le-by-cycle current limit function prov ides protection against shorted output. The RT6296F provides complete protecti on functions such as input under-voltag e lockout, output under-voltage protect ion, over-current protection, and therm al shutdown. The PWM frequency is adjus table by the EN/SYNC pin. The RT6296F i s available in the TSOT-23-8 (FC) packa ge. Ordering Information RT6296F Pac kage Type J8F : TSOT-23-8 (FC) Lead Pla ting System G : Green (Halogen Free and Pb Free) Features  4.5V t.
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