datasheet4u.com

900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




  Richtek Technology Electronic Components Datasheet  

RT8807 Datasheet

Two Phases Synchronous Buck PWM Controller

No Preview Available !

RT8807 pdf
®
RT8807/A
Two Phases Synchronous Buck PWM Controller
General Description
The RT8807/A is a two phases synchronous Buck PWM
controller with integrated drivers which is optimized for
high-performance graphic microprocessor and computer
applications. The IC integrates a voltage mode PWM
controller, two 5V MOSFET drivers with internal bootstrap
diodes, as well as output current monitoring and protection
functions into the V/WQFN-24L 4x4 package.
The inductor currents are sensed by lossless DCR current
sensing technique for current balance and over current
protection. The RT8807/A also features a reference tracking
mode operation in which the feedback voltage is regulated
and tracks external input reference voltage. Other features
include output current indication, adjustable operating
frequency, adjustable soft-start, power good, external
compensation, and enable/shutdown functions.
Ordering Information
RT8807
Package Type
QV : VQFN-24L 4x4 (V-Type)
(Exposed Pad-Option 1)
RT8807A
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
Package Type
QW : WQFN-24L 4x4 (W-Type)
(Exposed Pad-Option 1)
Lead Plating System
G : Green (Halogen Free and Pb Free)
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
Two-Phase Power Conversion with Single 12V
Power Supply
Embedded 5V Upper Gate Driver and 12V Lower
Gate Driver
Internal Regulated 5V Output
Precise Core Voltage Regulation
Selectable Internal / External Reference
Differential Inductor DCR Current Sense
External Programmable Voltage Droop Control
Enable Control for External Shutdown
Adjustable Operating Frequency
Adjustable Soft Start
Power Good and Output Current Indication
Adjustable Over Current Protection
Over Voltage Protection
Under Voltage Protection
Over Temperature Protection
Proprietary BTR (Boost Transient Response)
Feature Reducing Output Voltage Drop During Load
Transition (For RT8807 Only)
RoHS Compliant and 100% Lead(Pb)-Free
Applications
Middle to High End GPU Core Power
High End Desktop PC Memory Core Power
Low Voltage, High Current DC / DC Converter
Voltage Regulator Modules
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Copyright ©2014 Richtek Technology Corporation. All rights reserved.
DS8807/A-02 May 2014
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
1


  Richtek Technology Electronic Components Datasheet  

RT8807 Datasheet

Two Phases Synchronous Buck PWM Controller

No Preview Available !

RT8807 pdf
RT8807/A
Pin Configurations
(TOP VIEW)
24 23 22 21 20 19
UGATE1
BOOT1
5VCC
AGND
EN2B
CSP1
1
2
3
4
5
6
18 UGATE2
17 BOOT2
PGND
16 REFOUT/PGOOD
15 REFIN/EN
14 SS
25 13 FB
7 8 9 10 11 12
V/WQFN-24L 4x4
Typical Application Circuit
EXT_12V
VCC
12V
EXT_12V
DET
EXT_12V_DETB
Circuits
R2
R1
RT8807/A
5 EN2B
BOOT1 2
R14
Internal Reference mode
5VCC
Optional
External Reference
Voltage (0.45 to 2.5V)
R3
C1
C2
C3
R4
16 REFOUT/
PGOOD
UGATE1
1
22 VCC
3 5VCC
15 REFIN/
PHASE1 24
LGATE1 23
EN
4 AGND
14 SS
BOOT2 17 R15
11 RT
UGATE2 18
Q1
Q2
C9
Optional
R5
R6 C4
C5
10 IOUT/
IMAX
12 COMP
R7
R16
C18
13 FB
R8
21 DROOP
R9
PHASE2 19
LGATE2 20
CSN2 8
CSN1 7
CSP2 9
CSP1 6
R10
R11
C16
C6 C7
EXT_12V
C8 /VCC12V
L1
C12
C10 C11
Q3
L2
Q4 C14
R12
R13
C17
PHASE2
PHASE1
VOUT
C13
C15
Figure 1. Typical Application Circuit with 12V Input
Copyright ©2014 Richtek Technology Corporation. All rights reserved.
www.richtek.com
2
is a registered trademark of Richtek Technology Corporation.
DS8807/A-02 May 2014


Part Number RT8807
Description Two Phases Synchronous Buck PWM Controller
Maker Richtek Technology
Total Page 20 Pages
PDF Download
RT8807 pdf
RT8807 Datasheet PDF
[partsNo] view html
View PDF for Mobile








Similar Datasheet

1 RT8800 General Purpose 2/3-Phase PWM Controller Richtek Technology
Richtek Technology
RT8800 pdf
2 RT8800A General Purpose 3-Phase PWM Controller Richtek Technology
Richtek Technology
RT8800A pdf
3 RT8800B General Purpose 2/3-Phase PWM Controller Richtek Technology
Richtek Technology
RT8800B pdf
4 RT8801 Multi-Phase PWM Controller Richtek Technology
Richtek Technology
RT8801 pdf
5 RT8801B Multi-Phase PWM Controller Richtek Technology
Richtek Technology
RT8801B pdf
6 RT8802A 2/3/4/5-Phase PWM Controller Richtek Technology
Richtek Technology
RT8802A pdf
7 RT8803A 2/3-Phase PWM Controller Richtek Technology
Richtek Technology
RT8803A pdf
8 RT8805 Two Phase General Purpose PWM Controller Richtek Technology
Richtek Technology
RT8805 pdf
9 RT8805C Two Phase General Purpose PWM Controller Richtek Technology
Richtek Technology
RT8805C pdf





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