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RT8010-25GQW

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
RT8010/A
®
DS8010/A-10 February 2015 www.richtek.com
1
©
Copyright 2015 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Features
2.5V to 5.5V Input Range
Output Voltage (Adjustable Output From 0.6V to V
IN
)
RT8010 : 1V, 1.2V, 1.5V, 1.6V, 1.8V, 2.5V and 3.3V
Fixed/Adjustable Output Voltage
RT8010A Adjustable Output Voltage Only
1A Output Current
95% Efficiency
No Schottky Diode Required
1.5MHz Fixed-Frequency PWM Operation
Small 6-Lead WDFN and 16-Lead WQFN Package
RoHS Compliant and 100% Lead (Pb)-Free
Applications
Mobile Phones
Personal Information Appliances
Wireless and DSL Modems
MP3 Players
Portable Instruments
1.5MHz, 1A, High Efficiency PWM Step-Down DC/DC Converter
General Description
The RT8010/A is a high efficiency Pulse-Width-Modulated
(PWM) step-down DC/DC converter. Capable of delivering
1A output current over a wide input voltage range from
2.5V to 5.5V, the RT8010/A 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 shutdown modes. The Internal
synchronous rectifier with low R
DS(ON)
dramatically reduces
conduction loss at PWM mode. No external Schottky
diode is required in practical application.
The RT8010/A enters Low Dropout mode when normal
PWM cannot provide regulated output voltage by
continuously turning on the upper P-MOSFET. RT8010/A
enter 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-6L 2x2
and WQFN-16L 3x3 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.
Pin Configurations
(TOP VIEW)
WDFN-6L 2x2 (RT8010)
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
WQFN-16L 3x3 (RT8010A)
IC
VIN
FB/VOUT
GND
LX
EN
5
4
1
2
3
6
7
12
11
10
9
13141516
1
2
3
4
8765
FB/VOUT
GND
GND
GND
VIN
VIN
VIN
VIN
GND
EN
IC
IC
IC
LX
LX
LX
17
RT8010/A
®
DS8010/A-10 February 2015 www.richtek.com
2
©
Copyright 2015 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Ordering Information
Note :
***Empty means Pin1 orientation is Quadrant 1
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.
RT8010/A(- )
Package Type
QW : WDFN/WQFN (W-Type)
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
Output Voltage
Default : Adjustable (RT8010/A)
Fixed (RT8010)
10 : 1.0V
12 : 1.2V
15 : 1.5V
16 : 1.6V
18 : 1.8V
25 : 2.5V
33 : 3.3V
WQFN-16L 3x3
WDFN-6L 2x2
Pin 1 Orientation
***
(3) : Quadrant 3, Follow EIA-481-D
(For RT8010AGQW Only)
RT8010/A
3
DS8010/A-10 February 2015 www.richtek.com
©
Copyright 2015 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Typical Application Circuit
Figure 1. Fixed Voltage Regulator
Figure 2. Adjustable Voltage Regulator
R2
R1
1 x VV
REFOUT
with R2 = 300kΩ to 60kΩ so the I
R2
= 2μA to 10μA,
and (R1 x C1) should be in the range between 3x10
-6
and 6x10
-6
for component selection.
Figure 3
Layout note :
1. The distance that C
IN
connects to V
IN
is as close as possible (Under 2mm).
2. C
OUT
should be placed near RT8010/A.
Layout Guide
4.7µF
10µF
VIN
LX
IC
RT8010/A
EN VOUT
2.2µH
2.5V to 5.5V
V
IN
V
OUT
C
IN
L
6
4
3
2
5
C
OUT
GND
1
4.7µF
10µF
VIN
LX
RT8010/A
EN FB
2.2µH
2.5V to 5.5V
V
IN
V
OUT
C
IN
L
6
4
3
2
C
OUT
R1
R2
C1
I
R2
IC
5
GND
1
L1
IC
EN
VIN
GND
LX
C
OUT
C
IN
RT8010/A_FIX
C
IN
must be placed
to the VIN as close
as possible.
LX should be connected
to Inductor by wide and
short trace, keep
sensitive components
away from this trace.
Output capacitor
must be near
RT8010
1
2
34
5
6
VOUT
IC
EN
VIN
FB
GND
LX
RT8010/A_ADJ
C
IN
must be placed
to the VIN as close
as possible.
LX should be
connected to
Inductor by wide
and short trace,
keep sensitive
components away
from this trace.
Output
capacitor
must be near
RT8010/A
L1
C
OUT
C
IN
1
2
3
4
5
6
R1
R2
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

RT8010-25GQW

Mfr. #:
Buy RT8010-25GQW
Manufacturer:
Description:
IC REG BUCK 2.5V 1A 6WDFN
Lifecycle:
New from this manufacturer.
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