rt8010b Richtek Technology Corporation, rt8010b Datasheet

no-image

rt8010b

Manufacturer Part Number
rt8010b
Description
1.5mhz, 800ma, High Efficiency Step-down Dc/dc Converter
Manufacturer
Richtek Technology Corporation
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
rt8010bGQW
Manufacturer:
RCT
Quantity:
100
Part Number:
rt8010bGQW
Manufacturer:
RICHTEK/立锜
Quantity:
20 000
1.5MHz, 800mA, High Efficiency PWM
Step-Down DC/DC Converter
General Description
The RT8010B is a high-efficiency Pulse-Width-Modulated
(PWM) step-down DC-DC converter. Capable of delivering
800mA output current over a wide input voltage range from
2.5V to 4V, the RT8010B is ideally suited for portable
electronic devices that are powered from 1-cell Li-ion
battery or from other power sources such as cellular
phones, PDAs and hand-held devices.
Two operating modes are available including PWM/Low-
Dropout autoswitch and shut-down modes. The internal
synchronous rectifier with low R
conduction loss at PWM mode. No external Schottky
diode is required in practical application.
The RT8010B enters Low-Dropout mode when normal
PWM can not provide regulated output voltage by
continuously turning on the upper PMOS. The RT8010B
enters shut-down mode and consumes less than 0.1μA
when EN pin is pulled low.
The switching ripple is easily smoothed-out by small
package filtering elements due to a fixed operating
frequency of 1.5MHz. This along with small WDFN-8L 2x2
package provides small PCB area application. Other
features include soft start, lower internal reference voltage
with 2% accuracy, over temperature protection, and over
current protection.
Ordering Information
Note :
Richtek Green products are :
DS8010B-00 July 2007
RT8010B
RoHS compliant and compatible with the current require-
Suitable for use in SnPb or Pb-free soldering processes.
100% matte tin (Sn) plating.
ments of IPC/JEDEC J-STD-020.
Package Type
QW : WDFN-8L 2x2 (W-Type)
Operating Temperature Range
G : Green (Halogen Free with Commer-
cial Standard)
DS(ON)
dramatically reduces
Preliminary
Features
Applications
Pin Configurations
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area, otherwise visit our website for detail.
+2.5V to +4V Input Range
Output Voltage (Adjustable Output From 0.6V to V
800mA Output Current
95% Efficiency
No Schottky Diode Required
1.5MHz Fixed-Frequency PWM Operation
Small 8-Lead WDFN Package
RoHS Compliant and 100% Lead (Pb)-Free
Mobile Phones
Personal Information Appliances
Wireless and DSL Modems
MP3 Players
Portable Instruments
VIN
EN
FB
LX
WDFN-8L 2x2
(TOP VIEW)
1
2
3
4
9
8
7
6
5
PGND
PGND
PGND
AGND
RT8010B
www.richtek.com
IN
1
)

Related parts for rt8010b

Related keywords