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RT9059 Datasheet(PDF) 2 Page - Richtek Technology Corporation

Part # RT9059
Description  3A, Ultra-Low Dropout Voltage Regulator
PDF  12 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9059 Datasheet(HTML) 2 Page - Richtek Technology Corporation

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RT9059
2
DS9059-10
February 2016
www.richtek.com
©
Copyright
2016 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Pin No.
Pin Name
Pin Function
SOP-8 (Exposed Pad)
WDFN-10L 3x3
Adjustable
Output Voltage
Fixed Output
Voltage
Adjustable
Output Voltage
Fixed Output
Voltage
1
1
5
5
PGOOD
Power Good Open Drain Output.
2
2
6
6
EN
Enable Control Input.
3
3
7, 8. 9
7, 8. 9
VIN
Supply Input Voltage.
4
4
10
10
VDD
Supply Voltage of Control Circuit.
5
5, 7
--
4
NC
No Internal Connection.
6
6
1, 2, 3
1, 2, 3
VOUT
Output Voltage.
7
--
4
--
ADJ
Output Voltage Setting.
VOUT = VREF x (R1+R2)/R2.
8,
9 (Exposed Pad)
8,
9 (Exposed Pad)
11
(Exposed Pad)
11
(Exposed Pad)
GND
Ground. The exposed pad must be
soldered to a large PCB and
connected to GND for maximum
power dissipation.
Functional Pin Description
Typical Application Circuit
VOUT = 0.8 x (R1+R2)/R2
Figure 1. Adjustable Voltage Regulator
Figure 2. Fixed Voltage Regulator
EN
ADJ
VOUT
RT9059
GND
VDD
VDD
R1
R2
Chip Enable
VIN
VIN
10µF
PGOOD
1V to 5.5V
3V to 5.5V
VOUT
CIN
1µF
CVDD
COUT
10µF
RPGOOD
EN
VOUT
RT9059
GND
VDD
VDD
Chip Enable
VIN
VIN
10µF
PGOOD
1V to 5.5V
3V to 5.5V
VOUT
CIN
1µF
CVDD
COUT
10µF
RPGOOD



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