900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




  Richtek Technology Electronic Components Datasheet  

RT8202L Datasheet

(RT8202L/M) Single Synchronous Buck Controller

No Preview Available !

RT8202L/M
Single Synchronous Buck Controller
General Description
The RT8202L/M PWM controller provides the high
efficiency, excellent transient response, and high DC output
accuracy needed for stepping down high voltage batteries
to generate low voltage CPU core, I/O, and chipset RAM
supplies in notebook computers.
The constant-on-time PWM control scheme handles wide
input/output voltage ratios with ease and provides 100ns
instant-onresponse to load transients while maintaining
a relatively constant switching frequency.
The RT8202L/M achieves high efficiency at a reduced cost
by eliminating the current-sense resistor found in
traditional current mode PWMs. Efficiency is further
enhanced by its ability to drive very large synchronous
rectifier MOSFETs. The RT8202L is available in a
WQFN-16L 4x4 package and the RT8202M is available in
a WQFN-16L 3x3 package.
Ordering Information
RT8202L/M
Package Type
QW : WQFN-16L 4x4 (W-Type)
QW : WQFN-16L 3x3 (W-Type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Z : ECO (Ecological Element with
Halogen Free and Pb free)
L : WQFN-16L 4x4
M : WQFN-16L 3x3
Note :
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.
Features
z Ultra-High Efficiency
z Resistor Programmable Current Limit by Low Side
RDS(ON) Sense (Lossless Limit)
z 4700ppm/°C RDS(ON) Current Sensing
z Quick Load Step Response within 100ns
z 1% VFB Accuracy over Line and Load
z Adjustable 0.75V to 3.3V Output Voltage Range
z 3V to 26V Battery Input Voltage Range
z Resistor Programmable Frequency
z Integrated Bootstrap Switch
z Over Voltage Protection
z Under Voltage Protection
z Voltage Ramp Soft-Start
z Built In Soft Discharge Output
z Power Good Indicator
z RoHS Compliant and 100% Halogen Free
Applications
z Notebook Computers
z CPU Core Supply
z Chipset/RAM Supply as Low as 0.75V
Pin Configurations
(TOP VIEW)
16 15 14 13
VOUT 1
12 UGATE
VDD 2
FB 3
PGOOD 4
GND
17
11 PHASE
10 OC
9 VDDP
56 78
WQFN-16L 4x4 (RT8202L)/
WQFN-16L 3x3 (RT8202M)
DS8202L/M-04 April 2011
www.richtek.com
1
Free Datasheet http://www.Datasheet4U.com


  Richtek Technology Electronic Components Datasheet  

RT8202L Datasheet

(RT8202L/M) Single Synchronous Buck Controller

No Preview Available !

RT8202L/M
Marking Information
RT8202LGQW
EK= : Product Code
EK=YM
DNN
YMDNN : Date Code
RT8202LZQW
EK YM
DNN
EK : Product Code
YMDNN : Date Code
RT8202MGQW
JJ= : Product Code
JJ=YM
DNN
YMDNN : Date Code
RT8202MZQW
JJ YM
DNN
JJ : Product Code
YMDNN : Date Code
Typical Application Circuit
RTON
VDDP
5V
PGOOD
CCM/DEM
C1
R1
RT8202L/M
16 TON
9 VDDP
R2
2 VDD
C2
BOOT 13
UGATE 12
PHASE 11
LGATE 8
4 PGOOD
15 EN/DEM
OC 10
FB 3
R3
R4
RILIM
6 , 17 (Exposed Pad) GND
7 PGND
VOUT 1
* Optional
VIN
3V to 26V
C4
C3
Q1
L1
Q2 R5*
C5*
R6
R7
VOUT
C6*
C7*
C8
www.richtek.com
2
DS8202L/M-04 April 2011
Free Datasheet http://www.Datasheet4U.com


Part Number RT8202L
Description (RT8202L/M) Single Synchronous Buck Controller
Maker Richtek
PDF Download

RT8202L Datasheet PDF






Similar Datasheet

1 RT8202 Single Synchronous Buck Controller
Richtek
2 RT8202A Single Synchronous Buck Controller
Richtek
3 RT8202B Single Synchronous Buck Controller
Richtek
4 RT8202L (RT8202L/M) Single Synchronous Buck Controller
Richtek
5 RT8202M (RT8202L/M) Single Synchronous Buck Controller
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