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PDF RT9166A Data sheet ( Hoja de datos )
| Número de pieza | RT9166A | |
| Descripción | Ultra-Fast Transient Response LDO Regulator | |
| Fabricantes | Richiek | |
| Logotipo |  |
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Preliminary
RT9166/A
300/600mA, Ultra-Fast Transient Response LDO Regulator
General Description
The RT9166/A series are CMOS low dropout regulators
optimized for ultra-fast transient response. The devices are
capable of supplying 300mA or 600mA of output current
with a dropout voltage of 230mV or 580mV respectively.
The RT9166/A series are is optimized for CD/DVD-ROM,
CD/RW or wireless communication supply applications.
The RT9166/A regulators are stable with output capacitors
as low as 1µF. The other features include ultra low dropout
voltage, high output accuracy, current limiting protection,
and high ripple rejection ratio.
The devices are available in fixed output voltages range of
1.2V to 4.5V with 0.1V per step. The RT9166/A regulators
are available in 3-lead SOT-23, SOT-89, SOT-223 and TO-92
packages.
Ordering Information
RT9166/A -
Features
z Low Quiescent Current (Typically 220µA)
z Guaranteed 300/600mA Output Current
z Low Dropout Voltage: 230/580mV at 300/600mA
z Wide Operating Voltage Ranges: 3V to 5.5V
z Ultra-Fast Transient Response
z Tight Load and Line Regulation
z Current Limiting Protection
z Thermal Shutdown Protection
z Only low-ESR Ceramic Capacitor Required for
Stability
z Custom Voltage Available
Applications
z CD/DVD-ROM, CD/RW
z Wireless LAN Card/Keyboard/Mouse
z Battery-Powered Equipment
z XDSL Router
z PCMCIA Card
Package Type
Pin Configurations
VL : SOT-23 (L-Type)
X : SOT-89
(TOP VIEW)
VIN
XL : SOT-89 (L-Type)
G : SOT-223
GL : SOT-223 (L-Type)
3
12
3
2
1
Z : TO-92
GND
VOUT
TO-92
Operating Temperature Range
SOT-23 (L-Type)
(RT9166/A)
C : Commercial Standard
(RT9166)
P : Pb Free with Commercial Standard
Output Voltage
12 : 1.2V
13 : 1.3V
:
45 : 4.5V
600mA Output Current
300mA Output Current
1 23
VOUT GND VIN
(TAB)
SOT-89
123
GND VIN VOUT
(TAB)
SOT-89 (L-Type)
VOUT
GND
VIN
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.
123
VOUT GND VIN
(TAB)
SOT-223
1 23
GND VIN VOUT
(TAB)
SOT-223 (L-Type)
DS9166/A-09 October 2004
www.richtek.com
1
1 page  
Preliminary
RT9166/A
Typical Operating Characteristics
Dropout Voltage vs. Load Current
700
CIN = 1uF
600 COUT = 1uF
TJ = 125°C
500
TJ = 25°C
400
300
TJ = −40°C
200
100
0
0 100 200 300 400 500 600
Load Current (mA)
Power Supply Rejection Ratio
0
VIN = 5V
-10
CIN = 1uF
COUT = 1uF
-20
-30
-40 100mA
-50
1mA
-60
10
100 1k 10k 100k
Frequency (Hz)
1M
Region of Stable COUT ESR vs. Load Current
100.00
COUT = 1uF to 4.7uF
10.00
Instable
1.00
Stable
0.10
0.01 Instable
0.00
0
100 200 300 400 500 600
Load Current (mA)
VIN = 5V
CIN = 1uF
400
200
0
-200
-400
Output Noise
ILOAD = 100mA
COUT = 1uF
f = 10Hz to 100KHz
Time (1ms/DIV)
Current Limit vs. Input voltage
900
850
800
750 VIN = 5V
CIN = 1uF
COUT = 1uF
RL = 0.5Ω
700
3 3.5
RT9166-33CX
4 4.5
Input voltage (V)
5
5.5
DS9166/A-09 October 2004
Current Limit vs. Input voltage
900
850
800
750 VIN = 5V
CIN = 1uF
COUT = 1uF
RL = 0.5Ω
700
3 3.5
RT9166-33CVL
4 4.5
Input voltage (V)
5
5.5
www.richtek.com
5
5 Page 
Outline Dimension
Preliminary
D
C
e
A
b
H
L
B
A1
RT9166/A
Symbol
A
A1
B
b
C
D
e
H
L
Dimensions In Millimeters
Min
0.889
Max
1.295
0.000
0.152
1.397
1.803
0.356
0.508
2.591
2.997
2.692
3.099
1.803
2.007
0.080
0.254
0.300
0.610
Dimensions In Inches
Min
0.035
Max
0.051
0.000
0.006
0.055
0.071
0.014
0.020
0.102
0.118
0.106
0.122
0.071
0.079
0.003
0.010
0.012
0.024
SOT-23 Surface Mount Package
DS9166/A-09 October 2004
www.richtek.com
11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet RT9166A.PDF ] | |
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