Richtek RT9166-12GVL, RT9166-12PVL, RT9166-12PX, RT9166-12PXL, RT9166-13GVL Schematic [ru]

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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 300mAor 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 (RT9166 only), SOT-89, SOT-223, TO-92 and TO-252 packages.

Features

zLow Quiescent Current (Typically 220μA)

zGuaranteed 300/600mA Output Current

zLow Dropout Voltage : 230/580mV at 300/600mA

zWide Operating Voltage Ranges : 3V to 5.5V

zUltra-Fast Transient Response

zTight Load and Line Regulation

zCurrent Limiting Protection

zThermal Shutdown Protection

zOnly Low-ESR Ceramic Capacitor Required for Stability

zCustom Voltage Available

zRoHS Compliant and 100% Lead (Pb)-Free

Applications

z CD/DVD-ROM, CD/RW

Ordering Information

RT9166/A-

Package Type

VL : SOT-23-3 (L-Type) (RT9166 Only)

X : SOT-89

XL : SOT-89 (L-Type)

G : SOT-223

GL : SOT-223 (L-Type)

Z : TO-92

L : TO-252

Lead Plating System

P : Pb Free

G : Green (Halogen Free and Pb Free)

Output Voltage 12 : 1.2V

13 : 1.3V

:

45 : 4.5V

1B : 1.25V

600mA Output Current

300mA Output Current

Note :

Richtek products are :

`RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.

`Suitable for use in SnPb or Pb-free soldering processes.

zWireless LAN Card/Keyboard/Mouse

zBattery-Powered Equipment

zXDSL Router

zPCMCIA Card

Marking Information

For marking information, contact our sales representative directly or through a Richtek distributor located in your area.

Pin Configurations

(TOP VIEW)

VIN

3

2

GND VOUT

SOT-23-3 (L-Type) (RT9166)

3 VOUT 2 GND 1 VIN

TO-92

Copyright ©2012 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

DS9166/A-23 June 2012

www.richtek.com

 

1

RT9166/A

1

2

3

VOUT GND VIN (TAB)

SOT-89

1

2

3

GND VIN VOUT (TAB)

SOT-89 (L-Type)

Typical Application Circuit

VIN

CIN

1uF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

3

1

 

2

 

3

 

 

1

 

2

 

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOUT

GND

VIN

GND

VIN

VOUT

 

 

 

 

 

 

 

 

 

 

VOUT

 

 

 

VIN

 

(TAB)

 

 

 

(TAB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SOT-223

 

SOT-223 (L-Type)

 

 

 

TO-252

RT9166/A

 

VIN

VOUT

VOUT

 

GND

COUT

 

 

1uF

Note: To prevent oscillation, a 1μF minimum X7R or X5R dielectric is strongly recommended if ceramics are used as input/output capacitors. When using the Y5V dielectric, the minimum value of the input/output capacitance that can be used for stable over full operating temperature range is 3.3μF. (see Application Information Section for further details)

Functional Pin Description

Pin Name

Pin Function

VIN

Supply Input.

VOUT

Regulator Output.

 

 

GND

Common Ground.

Function Block Diagram

VIN

 

VOUT

Current

Error

 

Amplifier

 

Limiting

 

-

+

Sensor

Thermal

1.2V

 

Shutdown

 

Reference

 

 

GND

 

 

Copyright ©2012 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

DS9166/A-23 June 2012

2

 

RT9166/A

Absolute Maximum Ratings (Note 1)

 

z Supply Input Voltage -------------------------------------------------------------------------------------------------

6.5V

z Power Dissipation, PD @ TA = 25°C

 

SOT-23-3 ---------------------------------------------------------------------------------------------------------------

0.4W

SOT-89 ------------------------------------------------------------------------------------------------------------------

0.571W

SOT-223 ----------------------------------------------------------------------------------------------------------------

0.740W

TO-252 ------------------------------------------------------------------------------------------------------------------

1.470W

z Package Thermal Resistance (Note 2)

 

SOT-23-3, θJA ----------------------------------------------------------------------------------------------------------

250°C/W

SOT-89, θJA ------------------------------------------------------------------------------------------------------------

175°C/W

SOT-89, θJC ------------------------------------------------------------------------------------------------------------

58°C/W

SOT-223, θJA -----------------------------------------------------------------------------------------------------------

135°C/W

SOT-223, θJC ----------------------------------------------------------------------------------------------------------

15°C/W

TO-252, θJA ------------------------------------------------------------------------------------------------------------

68°C/W

TO-252, θJC ------------------------------------------------------------------------------------------------------------

7°C/W

z Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------------------

260°C

z Junction Temperature ------------------------------------------------------------------------------------------------

150°C

z Storage Temperature Range ---------------------------------------------------------------------------------------

−65°C to 150°C

z ESD Susceptibility (Note 3)

 

HBM (Human Body Model) -----------------------------------------------------------------------------------------

2kV

Recommended Operating Conditions

(Note 4)

z Supply Input Voltage -------------------------------------------------------------------------------------------------

2.8V to 5.5V

z Junction Temperature Range ---------------------------------------------------------------------------------------

− 40°C to 125°C

z Ambient Temperature Range ---------------------------------------------------------------------------------------

−40°C to 85°C

Electrical Characteristics

(VIN = VOUT + 1V or VIN = 2.8V whichever is greater, CIN = 1μF, COUT = 1μF, TA = 25°C, unless otherwise specified)

 

Parameter

Symbol

 

Test Conditions

Min

Typ

Max

 

Unit

 

Output Voltage Accuracy

VOUT

 

IOUT = 1mA

−1

--

3

 

%

 

Current Limit

 

RT9166

ILIM

 

RLOAD = 1Ω

300

--

--

 

mA

 

 

 

 

 

 

 

 

 

 

RT9166A

 

600

--

--

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Quiescent Current

(Note 5)

IQ

 

IOUT = 0mA

--

220

300

 

μA

 

Dropout Voltage

 

RT9166

VDROP

 

IOUT = 300mA

--

230

--

 

mV

 

(Note 6)

 

RT9166A

 

IOUT = 600mA

--

580

--

 

 

 

 

 

 

 

 

Line Regulation

 

 

VLINE

 

VIN = (VOUT + 0.3V) to 5.5V,

--

0.2

--

 

%/V

 

 

 

 

IOUT = 1mA

 

 

 

 

 

 

 

 

 

 

 

 

 

Load Regulation

 

RT9166

VLOAD

 

1mA < IOUT < 300mA

--

15

35

 

mV

 

(Note 7)

 

RT9166A

 

1mA < IOUT < 600mA

--

30

55

 

 

 

 

 

 

 

 

Power Supply Rejection Rate

PSRR

f = 1kHz, COUT = 1μF

--

−55

--

 

dB

 

Thermal Shutdown Temperature

TSD

 

 

--

170

--

 

°C

 

Thermal Shutdown Hysteresis

TSD

 

 

--

40

--

 

°C

 

 

 

 

 

 

 

 

 

 

 

 

Copyright ©2012 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

 

DS9166/A-23 June

2012

 

 

 

 

 

 

www.richtek.com

3

RT9166/A

Note 1. Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may affect device reliability.

Note 2. θJA is measured at TA = 25°C on a low effective thermal conductivity single-layer test board per JEDEC 51-3. Note 3. Devices are ESD sensitive. Handling precaution is recommended.

Note 4. The device is not guaranteed to function outside its operating conditions.

Note 5. Quiescent, or ground current, is the difference between input and output currents. It is defined by IQ = IIN - IOUT under no load condition (IOUT = 0mA). The total current drawn from the supply is the sum of the load current plus the ground pin current.

Note 6.The dropout voltage is defined as VIN − VOUT, which is measured when VOUT is VOUT(NORMAL) − 100mV.

Note 7. Regulation is measured at constant junction temperature by using a 20ms current pulse. Devices are tested for load regulation in the load range from 1mA to 300mA and 600mA respectively.

Copyright ©2012 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

DS9166/A-23 June 2012

4

Richtek RT9166-12GVL, RT9166-12PVL, RT9166-12PX, RT9166-12PXL, RT9166-13GVL Schematic

RT9166/A

Typical Operating Characteristics

Dropout Voltage vs. Load Current

 

700

CIN = 1uF

 

 

 

 

 

 

 

 

 

 

TJ = 125°C

 

 

600

COUT = 1uF

 

 

 

 

 

(mV)

 

 

 

 

 

 

500

 

 

TJ = 25°C

 

 

Voltage

 

 

 

 

 

400

 

 

 

 

 

 

300

 

 

 

 

 

 

Dropout

 

 

 

 

 

 

200

 

 

 

 

TJ = −40°C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

0

100

200

300

400

500

600

Power Supply Rejection Ratio

 

0

VIN = 5V

 

 

 

 

 

 

 

 

 

 

 

-10

CIN = 1uF

 

 

 

 

 

COUT = 1uF

 

 

 

 

 

 

 

 

 

 

(dB)

-20

 

 

 

 

 

-30

 

 

 

 

 

PSRR

 

 

 

 

 

-40

100mA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1mA

 

 

 

 

-50

 

 

 

 

 

 

-60

 

 

 

 

 

 

10

100

1k

10k

100k

1M

Load Current (mA)

Frequency (Hz)

Region of Stable COUT ESR vs. Load Current

Output Noise

 

100.00

 

 

 

COUT = 1uF to 4.7uF

 

VIN = 5V

ILOAD = 100mA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(μV)

CIN = 1uF

COUT = 1uF

 

10.00

 

 

Instable

 

 

 

400

 

 

 

 

 

 

 

 

 

ESR (Ω)

1.00

 

 

 

 

 

 

Signal

200

 

 

 

 

 

 

 

 

 

 

 

 

Stable

 

 

 

0

 

 

 

 

 

 

 

 

 

OUT

 

 

 

 

 

 

Noise

 

 

0.10

 

 

 

 

 

 

-200

 

C

0.01

 

 

Instable

 

 

 

Output

-400

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

f = 10Hz to 100KHz

 

 

0.00

 

 

 

 

 

 

 

Time (1ms/DIV)

 

 

0

100

200

300

400

500

600

 

 

Load Current (mA)

Current Limit vs. Input voltage

Current Limit vs. Input voltage

 

900

 

 

 

 

 

 

900

 

 

 

 

 

Limit (mA)

850

 

 

 

 

 

Limit (mA)

850

 

 

 

 

 

800

 

 

 

 

 

800

 

 

 

 

 

Current

750

VIN = 5V

 

 

 

 

Current

750

VIN = 5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CIN = 1uF

 

 

 

 

 

 

CIN = 1uF

 

 

 

 

 

 

COUT = 1uF

 

 

 

 

 

 

COUT = 1uF

 

 

 

 

 

700

RL = 0.5Ω

 

 

RT9166-33xX

 

700

RL = 0.5Ω

 

 

RT9166-33xVL

 

 

 

 

 

 

 

 

 

 

 

 

 

3

3.5

4

4.5

5

5.5

 

3

3.5

4

4.5

5

5.5

Input voltage (V)

Input voltage (V)

 

 

Copyright ©2012 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

DS9166/A-23 June 2012

www.richtek.com

5

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