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PDF RT9046 Data sheet ( Hoja de datos )
| Número de pieza | RT9046 | |
| Descripción | Low-Dropout Linear Regulator Controller | |
| Fabricantes | Richtek | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RT9046 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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RT9046
Low-Dropout Linear Regulator Controller with PGOOD
Indication
General Description
Features
The RT9046 is a low-dropout voltage regulator controller
designed specifically for use with an external N-MOSFET
for various applications. The controller features a 2%
reference, a high current driver capability of driving a high
current/low RDS(ON) N-MOSFET, programmable output
voltage, a power monitor with a 0.6ms delay, internal soft-
start function, under voltage protection, and chip enable
for power conservation. The device is also useful in other
high current applications. The RT9046 is available in a
small footprint package of SOT-23-6.
Ordering Information
RT9046
Package Type
E : SOT-23-6
Note :
Lead Plating System
G : Green (Halogen Free and Pb Free)
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.
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
z Programmable Output Voltage
z High Current Driver for High Current FET
z High Accuracy ±2% Voltage Reference
z Quick Line and Load Transient Response
z Power Good Monitor with Output Delay
z Internal Soft-Start Function to Reduce Inrush Current
z Enable Control and Under Voltage Protection
z Small Footprint Package SOT-23-6
z RoHS Compliant and Halogen Free
Applications
z Large-scale, Telecom Blade Systems
z Large-scale, Mass Storage Blade Systems
z High Current Systems Requiring Sequencing
z High Current Systems Requiring Power Management
Pin Configurations
(TOP VIEW)
VCC DRI PGOOD
654
23
EN GND FB
SOT-23-6
Function Block Diagram
Typical Application Circuit
VCC VIN
Chip Enable
1 EN
VCC 6
2
RT9046
GND
DRI
5
3 FB
PGOOD 4
CCC
RPGOOD
PGOOD
VOUT = 0.5x[(R1+R2)/R2]
CIN
Q1
VOUT
R1
COUT
R2
VCC
PGOOD
GND
Reference 0.5V
Voltage
0.45V
0.6ms
Delay
EN
+
-
Driver
DRI
FB
DS9046-01 April 2011
www.richtek.com
1
1 page  
RT9046
Typical Operating Characteristics
VIN = 1.8V, VOUT = 1.5V, VCC = 12V, CIN = COUT = 100μF, R1 = 4k, R2 = 2k, TA = 25°C, unless otherwise specified.
Quiescent Current vs. VCC Supply Voltage
0.60
Quiescent Current vs. Temperature
0.60
0.55 0.55
0.50 0.50
0.45 0.45
0.40 0.40
0.35
0.30
VEN = 5V
4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 12.5 13.5
VCC Supply Voltage (V)
Shutdown Current vs. Temperature
0.04
0.35
0.30
-50
-25
0 25 50 75
Temperature (°C)
VEN = 5V
100 125
EN Threshold Voltage vs. Temperature
0.95
0.90
0.02 Rising
0.85
0 0.80 Falling
-0.02
-0.04
-50
-25
0 25 50 75
Temperature (°C)
VEN = 0V
100 125
Reference Voltage vs. VCC Supply Voltage
0.510
0.508
0.505
0.503
0.500
0.498
0.495
0.493
0.490
VEN = 5V
4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 12.5 13.5
VCC Supply Voltage (V)
0.75
0.70
0.65
-50
-25
0 25 50 75
Temperature (°C)
100 125
Reference Voltage vs. Temperature
0.510
0.508
0.505
0.503
0.500
0.498
0.495
0.493
0.490
-50
-25
VEN = 5V
0 25 50 75 100 125
Temperature (°C)
DS9046-01 April 2011
www.richtek.com
5
5 Page 
Outline Dimension
D
CB
H
L
b
A
e
A1
RT9046
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
0.250
0.560
2.591
2.997
2.692
3.099
0.838
1.041
0.080
0.254
0.300
0.610
Dimensions In Inches
Min
0.031
Max
0.051
0.000
0.006
0.055
0.071
0.010
0.022
0.102
0.118
0.106
0.122
0.033
0.041
0.003
0.010
0.012
0.024
SOT-23-6 Surface Mount Package
Richtek Technology Corporation
Headquarter
5F, No. 20, Taiyuen Street, Chupei City
Hsinchu, Taiwan, R.O.C.
Tel: (8863)5526789 Fax: (8863)5526611
Richtek Technology Corporation
Taipei Office (Marketing)
5F, No. 95, Minchiuan Road, Hsintien City
Taipei County, Taiwan, R.O.C.
Tel: (8862)86672399 Fax: (8862)86672377
Email: [email protected]
Information that is provided by Richtek Technology Corporation is believed to be accurate and reliable. Richtek reserves the right to make any change in circuit
design, specification or other related things if necessary without notice at any time. No third party intellectual property infringement of the applications should be
guaranteed by users when integrating Richtek products into any application. No legal responsibility for any said applications is assumed by Richtek.
DS9046-01 April 2011
www.richtek.com
11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet RT9046.PDF ] | |
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