900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




  Richtek Technology Electronic Components Datasheet  

RT8297B Datasheet

340/800kHz Synchronous Step-Down Converter

No Preview Available !

®
RT8297A/B
1.5A, 17V, 340/800kHz Synchronous Step-Down Converter
General Description
The RT8297A/B is a high efficiency, monolithic
synchronous step-down DC-DC converter that can operate
at 340kHz/800kHz, while delivering up to 1.5A output
current from a 4V to 17V input supply. The RT8297A/B's
current mode architecture allows the transient response
to be optimized. Cycle-by-cycle current limit provides
protection against shorted outputs and soft-start eliminates
input current surge during start-up. Fault conditions also
include output under voltage protection, output over voltage
protection, and thermal shutdown. The low current (<5μA)
shutdown mode provides output disconnect, enabling easy
power management in battery-powered systems. The
RT8297A/B is available in a WDFN-8L 2x2 package.
Ordering Information
RT8297A/B
Package Type
QW : WDFN-8L 2x2 (W-Type)
Lead Plating System
Z : ECO (Ecological Element with
Halogen Free and Pb free)
Note :
A : 340kHz
B : 800kHz
Richtek products are :
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
Marking Information
RT8297AZQW
00 : Product Code
00W
W : Date Code
Features
4V to 17V Input Voltage Range
1.5A Output Current
Internal N-MOSFETs
Current Mode Control
Fixed Frequency Operation : 340kHz/800kHz
Output Adjustable from 0.8V to 12V
Up to 95% Efficiency
Internal Compensation
Stable with Low ESR Ceramic Output Capacitors
Cycle-by-Cycle Over Current Protection
Input Under Voltage Lockout
Output Under Voltage Protection
Output Over Voltage Protection
Power Good Indicator
Thermal Shutdown Protection
RoHS Compliant and Halogen Free
Applications
Industrial and Commercial Low Power Systems
Computer Peripherals
LCD Monitors and TVs
Green Electronics/Appliances
Point of Load Regulation for High-Performance DSPs,
FPGAs, and ASICs
Pin Configuration
(TOP VIEW)
SW 1
VIN 2
BOOT 3
EN 4
8 GND
7 GND
6 PGOOD
9 5 FB
WDFN-8L 2x2
RT8297BZQW
71 : Product Code
71W
W : Date Code
Copyright ©2018 Richtek Technology Corporation. All rights reserved.
DS8297A/B-07 June 2018
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1


  Richtek Technology Electronic Components Datasheet  

RT8297B Datasheet

340/800kHz Synchronous Step-Down Converter

No Preview Available !

RT8297A/B
Typical Application Circuit
VIN
4V to 17V
CIN
10µF
PGOOD
Chip Enable
RT8297A
2 VIN
BOOT 3
6 PGOOD
4 EN
SW 1
FB 5
7, 8, 9 (Exposed Pad) GND
CBOOT
10nF
L
15µH
R1
110k
R2
36k
VOUT
3.3V
1.5A
COUT
22µF x 2
VIN
4V to 17V
CIN
10µF
PGOOD
Chip Enable
RT8297B
2 VIN
BOOT 3
6 PGOOD
4 EN
SW 1
FB 5
7, 8, 9 (Exposed Pad) GND
CBOOT
10nF
L
6.8µH
R1
47k
R2
15k
VOUT
3.3V
1.5A
COUT
22µF x 2
Table 1. Recommended Component Selection
RT8297A
VOUT (V) L (H) R1 (k) R2 (k) COUT (F)
1.2
4.7
110
220
22 x 2
2.5
10
110
51
22 x 2
3.3
15
110
36
22 x 2
5
22
120
22
22 x 2
RT8297B
VOUT (V)
1.2
2.5
3.3
5
L (H)
3.6
4.7
6.8
10
R1 (k)
47
47
47
62
R2 (k)
91
22
15
12
COUT (F)
22 x 2
22 x 2
22 x 2
22 x 2
Copyright ©2018 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS8297A/B-07 June 2018


Part Number RT8297B
Description 340/800kHz Synchronous Step-Down Converter
Maker Richtek
PDF Download

RT8297B Datasheet PDF






Similar Datasheet

1 RT8297A 340/800kHz Synchronous Step-Down Converter
Richtek
2 RT8297B 340/800kHz Synchronous Step-Down Converter
Richtek





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy