RT9167A-30GB Richtek USA Inc, RT9167A-30GB Datasheet

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RT9167A-30GB

Manufacturer Part Number
RT9167A-30GB
Description
IC REG LDO 3.0V 500MA SOT23-5
Manufacturer
Richtek USA Inc
Datasheet

Specifications of RT9167A-30GB

Regulator Topology
Positive Fixed
Voltage - Output
3V
Voltage - Input
Up to 7V
Voltage - Dropout (typical)
0.6V @ 500mA
Number Of Regulators
1
Current - Output
500mA (Min)
Current - Limit (min)
500mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
SC-74A, SOT-753
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
RT9167A-30GB
Manufacturer:
RICHTEK/立锜
Quantity:
20 000
Low-Noise, Fixed Output Voltage,300mA/500mA LDO Regulator
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
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
limiting, and over temperature protection.
Ordering Information
Note :
Richtek Pb-free and Green products are :
DS9167/A-28
RT9167/A-
RoHS compliant and compatible with the current require-
Suitable for use in SnPb or Pb-free soldering processes.
ments of IPC/JEDEC J-STD-020.
September 2010
improve low noise performance, current
uses an internal P-MOSFET as the pass
Package Type
B : SOT-23-5
BR : SOT-23-5 (R-Type)
S : SOP-8
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
Output Voltage
15 : 1.5V
16 : 1.6V
49 : 4.9V
50 : 5.0V
2H : 2.85V
500mA Output Current
300mA Output Current
:
cial Standard)
Features
Applications
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.
Pin Configurations
Stable with Low-ESR Output Capacitor
Low Dropout Voltage (350mV @ 300mA)
Low Operation Current − − − − − 80μ μ μ μ μ A Typical
Shutdown Function
Low Noise Output
Low Temperature Coefficient
Current and Thermal Limiting
Custom Voltage Available
SOT-23-5
RoHS Compliant and 100% Lead (Pb)-Free
Cellular Telephones
Laptop, Notebook, and Palmtop Computers
Battery-powered Equipment
Hand-held Equipment
VOUT
VIN GND EN
5
SOT-23-5
and SOP-8 Packages
2
VOUT
VIN
EN
BP
BP
4
3
(TOP VIEW)
2
3
4
SOP-8
8
7
6
5
RT9167/A
SOT-23-5
VOUT GND VIN
GND
GND
GND
GND
BP
5
www.richtek.com
2
(R-Type)
EN
4
3
1

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RT9167A-30GB Summary of contents

Page 1

Low-Noise, Fixed Output Voltage,300mA/500mA LDO Regulator General Description The RT9167 300mA/500mA low dropout and low noise micropower regulator suitable for portable applications. The output voltages range from 1. 100mV increments and 2% accuracy. The RT9167/A ...

Page 2

RT9167/A 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 Function Block Diagram EN BP www.richtek.com 2 RT9167 OUT ...

Page 3

... RT9167A RT9167/A (2) Dropout Voltage RT9167 3.0V OUT(Normal) RT9167/A Version) RT9167A Line Regulation RT9167/A Load Regulation RT9167A EN Input High Threshold EN Input Low Threshold EN Bias Current Shutdown Supply Current Thermal Shutdown Temperature DS9167/A-28 September 2010 = 25°C, unless otherwise specified) A Symbol Test Conditions V IN ...

Page 4

RT9167/A Parameter Output Noise Ripple Rejection Note 1. θ is measured in the natural convection JEDEC 51-3 thermal measurement standard. Pin 1 of SOP-8 and pin4 of SOT-23-5 packages are the case position for θ measurement. JA ...

Page 5

... Load Current (A) Current Limit vs. Temperature 900 800 700 600 500 400 300 200 -50 - Temperature V = 3.3V OUT 75 100 125 150 ( C) ° 125°C 25°C -40°C RT9167A V = 3.3V OUT RT9167A V = 3.3V OUT 75 100 125 ( C) ° www.richtek.com 5 ...

Page 6

RT9167/A Load Transient Response 10μ 1μF 40 OUT C = 10nF -20 ≈ -50 Time (50 Line Transient Response 150 OUT C = 1μF 100 OUT ...

Page 7

PSRR OUT 100 1K 10 100 1000 Frequency (kHz) DS9167/A-28 September 2010 = 3.3V 1mA LOAD = 4.7μ 10nF OUT BP 10K 100K 1M 10000 ...

Page 8

RT9167/A Application Information Capacitor Selection and Regulator Stability Like any low-dropout regulator, the external capacitors used with the RT9167/A must be carefully selected for regulator stability and performance. Using a capacitor whose value is > 1μF on the RT9167/A input ...

Page 9

Load-Transient Considerations The RT9167/A load-transient response graphs (see Typical Operating Characteristics) show two components of the output response shift from the output impedance due to the load current change, and the transient response. The DC shift is quite ...

Page 10

... Current Limit and Thermal Protection T9167 includes a current limit which monitors and controls the pass transistor's gate voltage limiting the output current to 350mA Typ. (700mA Typ. for RT9167A). Thermal- overload protection limits total power dissipation in the RT9167/A. When the junction temperature exceeds T = 155° ...

Page 11

... JC resistance provided by IC manufacturer. Therefore it's easy to estimate the junction temperature by any condition. For example, how to calculate the junction temperature of RT9167A-28CB SOT-23-5 package use input voltage output current I IN the case temperature (pin 4 of SOT-23-5 package 70° ...

Page 12

RT9167/A Outline Dimension Symbol www.richtek.com Dimensions In Millimeters Min Max 0.889 1.295 0.000 0.152 1.397 1.803 0.356 0.559 2.591 2.997 2.692 3.099 0.838 ...

Page 13

Symbol Richtek Technology Corporation Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 Information that is provided by Richtek Technology Corporation is believed to be ...

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