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RT9167-50GB

P1-P3P4-P6P7-P9P10-P12P13-P13
RT9167/A
1
DS9167/A-29 April 2011 www.richtek.com
Pin Configurations
Low-Noise, Fixed Output Voltage,300mA/500mA LDO Regulator
Ordering Information
(TOP VIEW)
General Description
The RT9167/A is a 300mA/500mA low dropout and low
noise micropower regulator suitable for portable
applications. The output voltages range from 1.5V to 5V
in 100mV increments and 2% accuracy. The RT9167/A is
designed for use with very low ESR capacitors. The output
remains stable even with 1μF ceramic output capacitor.
The RT9167/A uses an internal P-MOSFET as the pass
device, which does not cause extra GND current in heavy
load and dropout conditions. The shutdown mode of nearly
zero operation current makes the IC suitable for battery-
powered devices. Other features include a reference
bypass pin to improve low noise performance, current
limiting, and over temperature protection.
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Features
zz
zz
z
Stable with Low-ESR Output Capacitor
zz
zz
z Low Dropout Voltage (350mV @ 300mA)
zz
zz
z Low Operation Current
−−
−−
−80
μμ
μμ
μA Typical
zz
zz
z Shutdown Function
zz
zz
z Low Noise Output
zz
zz
z Low Temperature Coefficient
zz
zz
z Current and Thermal Limiting
zz
zz
z Custom Voltage Available
zz
zz
z SOT-23-5 and SOP-8 Packages
zz
zz
z RoHS Compliant and 100% Lead (Pb)-Free
Applications
z Cellular Telephones
z Laptop, Notebook, and Palmtop Computers
z Battery-powered Equipment
z Hand-held Equipment
SOP-8
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.
SOT-23-5 (R-Type)
SOT-23-5
VIN
GND
EN
VOUT
BP
4
23
5
VOUT GND
VIN
BP
EN
4
23
5
EN
VIN
VOUT
BP
GND
GND
GND
GND
2
3
4
5
6
7
8
RT9167/A-
Package Type
B : SOT-23-5
BR : SOT-23-5 (R-Type)
S : SOP-8
Output Voltage
15 : 1.5V
16 : 1.6V
:
49 : 4.9V
50 : 5.0V
2H : 2.85V
500mA Output Current
300mA Output Current
Lead Plating System
P : Pb Free
G : Green (Halogen Free and Pb Free)
RT9167/A
2
DS9167/A-29 April 2011www.richtek.com
Function Block Diagram
Typical Application Circuit
Functional Pin Description
Pin Name Pin Function
VIN Power Input Voltage
GND Ground
EN Chip Enable (Active High)
BP Reference Noise Bypass
VOUT Output Voltage
Current-Limit and
Thermal Protection
MOS Driver
+
-
VOUT
Shutdown
and
Logic Control
R1
R2
VIN
Error
Amplifier
VREF
BP
EN
GND
IN
GND
OUT
RT9167/A
+
+
C
OUT
1µF
C
IN
1µF
V
IN
V
OUT
EN BP
C
BP
10nF
Chip Enable
RT9167/A
3
DS9167/A-29 April 2011 www.richtek.com
Absolute Maximum Ratings
z Input Voltage ---------------------------------------------------------------------------------------------------------- 8V
z Power Dissipation, P
D
@ T
A
= 25°C
SOT-23-5 --------------------------------------------------------------------------------------------------------------- 0.4W
SOP-8 ------------------------------------------------------------------------------------------------------------------ 0.625W
z Package Thermal Resistance (Note1)
SOT-23-5, θ
JA
--------------------------------------------------------------------------------------------------------- 250°C/W
SOT-23-5, θ
JC
--------------------------------------------------------------------------------------------------------- 130°C/W
SOP-8, θ
JA
------------------------------------------------------------------------------------------------------------ 160°C/W
SOP-8, θ
JC
------------------------------------------------------------------------------------------------------------ 60°C/W
z Operating Junction Temperature Range ------------------------------------------------------------------------- −40°C to 125°C
z Storage Temperature Range --------------------------------------------------------------------------------------- −65°C to 150°C
z Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------- 260°C
Electrical Characteristics
(V
IN
= 5.0V, C
IN
= 1μF, C
OUT
= 1μF, T
A
= 25°C, unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
2.9 -- 7
Input Voltage Range
V
IN
I
L
= 50mA
2.7 -- 7
V
Output Voltage Accuracy
ΔV
OUT
I
L
= 1mA
-2 -- 2 %
RT9167 300 -- --
Maximum Output
Current
RT9167A
I
MAX
500 -- --
mA
RT9167 400 -- --
Current Limit
RT9167A
I
LIM
R
LOAD
= 1Ω
500 700 --
mA
RT9167/A No Load -- 80 150
RT9167/A
I
OUT
= 300mA
-- 90 150
Quiescent Current
RT9167A
I
G
I
OUT
= 500mA
-- 90 150
μA
RT9167/A
I
OUT
= 1mA
-- 1.1 5
RT9167/A
I
OUT
= 50mA
-- 55 100
RT9167/A
I
OUT
= 300mA
-- 350 450
Dropout Voltage
(2)
(V
OUT(Normal)
= 3.0V
Version)
RT9167A
V
DROP
I
OUT
= 500mA
-- 600 750
mV
Line Regulation
ΔV
LINE
V
IN
= (V
OUT
+0.15) to 7V, I
OUT
=1mA
-- -- 6 mV/V
RT9167/A
I
OUT
= 0mA to 300mA
-- -- 30
Load Regulation
RT9167A
ΔV
LOAD
I
OUT
= 0mA to 500mA
-- -- 35
mV
EN Input High Threshold
V
IH
V
IN
= 3V to 5.5V
1.6 -- -- V
EN Input Low Threshold
V
IL
V
IN
= 3V to 5.5V
-- -- 0.4 V
EN Bias Current
I
SD
-- -- 100 nA
Shutdown Supply Current
I
GSD
V
OUT
= 0V
-- 0.01 1 μA
Thermal Shutdown Temperature
T
SD
-- 155 --
°C
To be continued
P1-P3P4-P6P7-P9P10-P12P13-P13

RT9167-50GB

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Buy RT9167-50GB
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Description:
IC REG LINEAR 5V 300MA SOT23-5
Lifecycle:
New from this manufacturer.
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