RT9264CS Richtek Technology Corporation, RT9264CS Datasheet

no-image

RT9264CS

Manufacturer Part Number
RT9264CS
Description
High efficiency, high efficiency, step-up DC/DC converter
Manufacturer
Richtek Technology Corporation
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
RT9264CS
Manufacturer:
RICHTEK
Quantity:
938
General Description
The RT9264 is a compact, high efficient, step-up
DC/DC converter with current mode PWM control
loop, providing stable and high efficient operations
without external compensation.
The RT9264 suitable for 1 to 4 battery cells as well
as USB power applications providing up to 400mA
output current. The high switching rate minimized
the size of external components.
A 300mA LDO is included in RT9264 to provide a
secondary low noise output as well as an output
current stop in the shutdown mode. RT9264 is
provided in SOP-8 packages.
Ordering Information
RT9264
Typical Application Circuit
DS9264-00 December 2001
High Frequency, High Efficiency, Step-up DC/DC Converter
V
Operating temperature range
Package type
S : SOP-8
C: Commercial standard
OUT2
2.5V
10µF
C3
V
IN
+
Fig. 1 RT9264 Typical Application for Portable Instruments
42K
22K
R4
R3
CE
L DO O
L F B
RT9264
G N D
VDD
Preliminary
EXT
F B
L X
Features
Applications
Pin Configurations
RT9264CS
(Plastic SOP-8)
Part Number
400mA High Supply Capability
90% Efficiency
Switching Rate higher Than 1.4MHz
Providing Flexibility for Using Internal and
External Power Switches
Built-in 300mA LDO, also for the Zero-Output-
Current Shutdown Mode
Boost DC-DC Integrating LDO for Up-Down
Regulation
8-Pin SOP Package
Portable Instrument
ADSL Modem
USB Devices
36K
22K
R1
R2
C2
1µF
1N5819
L1
2.2µH
D1
+
LDOO
GND
EXT
LFB
Pin Configurations
C1
47µF
47µF
3.3V
V
OUT1
1
2
3
4
TOP VIEW
www.richtek-ic.com.tw
RT9264
8
7
6
5
CE
LX
VDD
FB
1

Related parts for RT9264CS

RT9264CS Summary of contents

Page 1

... Built-in 300mA LDO, also for the Zero-Output- Current Shutdown Mode Boost DC-DC Integrating LDO for Up-Down Regulation 8-Pin SOP Package Applications Portable Instrument ADSL Modem USB Devices Pin Configurations Part Number RT9264CS (Plastic SOP-8) VDD 36K RT9264 CE EXT ...

Page 2

RT9264 V IN Chip Enable Input 3.3V V OUT + C3 10µF Fig. 2 Application Circuit with Zero-Output-Current Shutdown Mode Control 3.3V/ 2.5V V OUT2 + C3 10µF www.richtek-ic.com.tw 2 Preliminary VDD RT9264 CE EXT ...

Page 3

Pin Description Pin No. Pin Name Pin Function 1 GND Ground Output pin for driving external NMOS or NPN 2 EXT When driving an NPN, a resistor should be added for limiting base current. 3 LFB Feedback pin of the ...

Page 4

RT9264 Absolute Maximum Ratings Supply Voltage LX Pin Switch Voltage LDO Output Voltage Other I/O Pin Voltages LX Pin Switch Current EXT Pin Driver Current Power Dissipation SOP-8 • Package Thermal Resistance SOP-8, θ JA ...

Page 5

Application Note Output Voltage Setting Referring to application circuits Fig.1 to Fig.3, the output voltage of the switching regulator (V be set with Eq.1. The LDO output voltage can be set with Eq. ...

Page 6

RT9264 Package Information J B Symbol www.richtek-ic.com.tw 6 Preliminary Dimensions In Millimeters Min Max 4.801 5.004 3.810 3.988 1.346 1.753 0.330 0.508 1.194 1.346 0.178 0.254 ...

Page 7

DS9264-00 December 2001 Preliminary RT9264 www.richtek-ic.com.tw 7 ...

Page 8

RT9264 RICHTEK TECHNOLOGY CORP. Headquarter 6F, No. 35, Hsintai Road, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5510047 Fax: (8863)5537749 www.richtek-ic.com.tw 8 Preliminary RICHTEK TECHNOLOGY CORP. Taipei Office (Marketing) 8F-1, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, ...

Related keywords