Richtek RT9193-15GB, RT9193-15PB, RT9193-15PU5, RT9193-16GB, RT9193-16PB Schematic [ru]

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RT9193

300mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator

General Description

The RT9193 is designed for portable RF and wireless applications with demanding performance and space requirements. The RT9193 performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. A noise bypass pin is available for further reduction of output noise. Regulator ground current increases only slightly in dropout, further prolonging the battery life. The RT9193 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The RT9193 consumes less than 0.01μA in shutdown mode and has fast turn-on time less than 50μs. The other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. Available in the SC-70-5, SOT-23-5, TSOT-23-5, WDFN-6L 2x2 and MSOP-8 packages.

Ordering Information

RT9193-

Package Type

U5 : SC-70-5

B : SOT-23-5

J5 : TSOT-23-5

QW : WDFN-6L 2x2 (W-Type) F : MSOP-8

Lead Plating System P : Pb Free

G : Green (Halogen Free and Pb Free)

Output Voltage 15 : 1.5V

16 : 1.6V

:

49 : 4.9V

50 : 5.0V

1H : 1.85V

2H : 2.85V

4G : 4.75V

(1.5V to 5V with 0.1V step is available)

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.

Features

zUltra Low Noise for RF Application

zUltra Fast Response in Line/Load Transient

zQuick Start-Up (Typically 50μs)

z<0.01μA Standby Current When Shutdown

zLow Dropout : 220mV @ 300mA

zWide Operating Voltage Ranges : 2.5V to 5.5V

zTTL-Logic-Controlled Shutdown Input

zLow Temperature Coefficient

zCurrent Limiting Protection

zThermal Shutdown Protection

zOnly 1μF Output Capacitor Required for Stability

zHigh Power Supply Rejection Ratio

zCustom Voltage Available

zRoHS Compliant and 100% Lead (Pb)-Free

Applications

zCDMA/GSM Cellular Handsets

zBattery-Powered Equipment

zLaptop, Palmtops, Notebook Computers

zHand-Held Instruments

zPCMCIA Cards

zPortable Information Appliances

Marking Information

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

Typical Application Circuit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RT9193

 

 

 

 

 

 

 

 

VIN

 

 

VIN

VOUT

 

 

 

 

 

 

VOUT

 

 

 

 

 

 

 

 

 

 

 

CIN

 

 

 

 

 

 

 

 

 

 

 

 

COUT

 

1µF/X7R

 

 

 

 

GND

 

 

 

 

 

 

 

1µF/X7R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chip Enable

EN

BP

 

 

 

 

CBP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

22nF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Option for low noise)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Copyright ©2013 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

DS9193-16 January 2013

www.richtek.com

 

1

RT9193

 

 

 

 

 

 

 

 

 

Pin Configurations

(TOP VIEW)

 

 

 

 

 

 

 

 

 

 

VOUT

BP

 

 

 

 

 

 

 

 

5

4

EN 1

 

6

BP

NC

 

8

NC

 

 

GND 2

 

5

NC

VIN

2

7

EN

 

 

7

NC

3

6

BP

2

3

VIN 3

4

VOUT

 

VOUT

4

5

GND

 

 

 

 

 

 

VIN GND EN

WDFN-6L 2x2

MSOP-8

 

SC-70-5/SOT-23-5/TSOT-23-5

Functional Pin Description

Pin Name

Pin Function

 

 

EN

Chip Enable (Active High). Note that this pin is high impedance. There should be a pull low 100kΩ

resistor connected to GND when the control signal is floating.

 

 

 

BP

Reference Noise Bypass. This pin can be floating. For lowest noise performance, connect a 22nF

capacitor between the BP and GND pins.

 

 

 

GND

Ground.

 

 

VOUT

Output Voltage.

 

 

VIN

Power Input Voltage.

 

 

Function Block Diagram

EN

 

Shutdown

VIN

 

Quick

 

and

 

 

Start

Logic Control

BP

VREF

 

 

 

 

+

MOSFET

 

 

-

Driver

 

 

Error

VOUT

 

 

Amplifier

 

 

 

Current-Limit

 

 

 

and

 

 

 

Thermal

 

 

 

Protection

 

 

 

GND

Copyright ©2013 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

DS9193-16 January 2013

2

 

 

 

 

 

 

 

 

RT9193

Absolute Maximum Ratings (Note 1)

 

 

 

 

 

 

 

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

 

 

 

 

 

 

6V

 

z Power Dissipation, PD @ TA = 25°C

 

 

 

 

 

 

 

 

SC-70-5 ----------------------------------------------------------------------------------------------------------------------

 

 

 

 

 

 

 

300mW

 

TSOT-23-5/SOT-23-5 ------------------------------------------------------------------------------------------------------

 

 

 

 

 

 

400mW

 

WDFN-6L 2x2 --------------------------------------------------------------------------------------------------------------

 

 

 

 

 

 

 

606mW

 

MSOP-8 ---------------------------------------------------------------------------------------------------------------------

 

 

 

 

 

 

 

625mW

 

z Package Thermal Resistance

(Note 2)

 

 

 

 

 

 

 

 

SOT-70-5, θJA ---------------------------------------------------------------------------------------------------------------

 

 

 

 

 

 

 

333°C/W

 

TSOT-23-5/SOT-23-5, θJA ------------------------------------------------------------------------------------------------

 

 

 

 

 

 

250°C/W

 

TSOT-23-5/SOT-23-5, θJC -----------------------------------------------------------------------------------------------

 

 

 

 

 

 

25°C/W

 

WDFN-6L 2x2, θJA ---------------------------------------------------------------------------------------------------------

 

 

 

 

 

 

 

165°C/W

 

WDFN-6L 2x2, θJC

--------------------------------------------------------------------------------------------------------

 

 

 

 

 

 

20°C/W

 

MSOP-8 θJA ----------------------------------------------------------------------------------------------------------------

 

 

 

 

 

 

 

160°C/W

 

MSOP-8 θJC ----------------------------------------------------------------------------------------------------------------

 

 

 

 

 

 

 

55°C/W

 

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

 

 

 

 

 

 

150°C

 

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

 

 

 

 

260°C

 

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

 

 

 

 

 

 

−65°C to 150°C

z ESD Susceptibility

(Note 3)

 

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

2kV

 

MM (Machine Model) -----------------------------------------------------------------------------------------------------

 

 

 

 

 

 

200V

 

Recommended Operating Conditions

(Note 4)

 

 

 

 

 

 

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

 

 

 

 

 

 

2.5V to 5.5V

z EN Input Voltage -----------------------------------------------------------------------------------------------------------

 

 

 

 

 

 

 

0V 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, CIN = COUT = 1μF, CBP = 22nF, TA = 25°C, unless otherwise specified)

 

 

 

 

 

 

Parameter

 

Symbol

 

Test Conditions

Min

Typ

 

Max

 

Unit

Output Voltage Accuracy

 

VOUT

IOUT = 1mA

−2

--

 

2

 

%

Current Limit

 

 

ILIM

RLOAD = 1Ω

360

400

 

--

 

mA

Quiescent Current

 

 

IQ

VEN

1.2V, IOUT = 0mA

--

90

 

130

 

μA

Dropout Voltage

(Note 5)

 

VDROP

IOUT = 200mA, VOUT > 2.8V

 

170

 

200

 

mV

 

IOUT = 300mA, VOUT > 2.8V

--

220

 

300

 

 

 

 

 

 

 

 

Line Regulation

 

 

VLINE

VIN = (VOUT + 1V) to 5.5V,

--

--

 

0.3

 

%

 

 

IOUT = 1mA

 

 

 

 

 

 

 

 

 

 

 

 

Load Regulation

 

 

VLOAD

1mA < IOUT < 300mA

--

--

 

0.6

 

%

Standby Current

 

 

ISTBY

VEN = GND, Shutdown

--

0.01

 

1

 

μA

 

 

 

 

 

 

 

 

 

 

 

 

Copyright ©2013 Richtek Technology Corporation. All rights reserved.

 

is a registered trademark of Richtek Technology Corporation.

 

DS9193-16 January

2013

 

 

 

 

 

 

 

www.richtek.com

3

RT9193

Parameter

 

Symbol

Test Conditions

Min

Typ

Max

Unit

 

 

 

 

 

 

 

 

 

EN Input Bias Current

 

IIBSD

VEN = GND or VIN

--

0

100

nA

EN Threshold

 

Logic-Low

VIL

VIN = 3V to 5.5V, Shutdown

--

--

0.4

V

Voltage

 

Logic-High

VIH

VIN = 3V to 5.5V, Start-Up

1.2

--

--

 

 

Output Noise Voltage

 

eNO

10Hz to 100kHz, IOUT = 200mA

--

100

--

μVRMS

 

COUT = 1μF

 

 

 

 

 

 

 

 

Power Supply

 

f = 100Hz

PSRR

COUT = 1μF, IOUT = 10mA

--

−70

--

dB

Rejection Rate

 

f = 10kHz

--

−50

--

 

 

 

 

Thermal Shutdown Temperature

TSD

 

--

165

--

°C

Thermal Shutdown Temperature

TSD

 

--

30

--

°C

 

 

 

 

 

 

 

 

 

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

Copyright ©2013 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

DS9193-16 January 2013

4

Richtek RT9193-15GB, RT9193-15PB, RT9193-15PU5, RT9193-16GB, RT9193-16PB Schematic

RT9193

Typical Operating Characteristics

Output Voltage vs. Temperature

 

1.8

RT9193-15xU5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VIN = 3.3V

 

 

 

 

 

 

 

1.7

CIN = COUT = 1μF X7R

 

 

 

 

(V)

1.6

 

 

 

 

 

 

 

 

Voltage

 

 

 

 

 

 

 

 

1.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output

1.4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.3

 

 

 

 

 

 

 

 

 

1.2

 

 

 

 

 

 

 

 

 

 

-50

-25

0

25

50

75

100

125

Temperature (°C)

Quiescent Current vs. Temperature

 

95

RT9193-15xU5

 

 

 

 

 

 

 

 

 

 

 

 

 

90

VIN = 3.3V

 

 

 

 

 

 

(µA)

CIN = COUT = 1μF X7R

 

 

 

 

 

 

 

 

 

85

 

 

 

 

 

 

 

 

Current

 

 

 

 

 

 

 

 

80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Quiescent

75

 

 

 

 

 

 

 

 

70

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

65

 

 

 

 

 

 

 

 

 

60

 

 

 

 

 

 

 

 

 

 

-50

-25

0

25

50

75

100

125

Temperature (°C)

 

300

Dropout Voltage vs. Load Current

 

 

20

 

 

PSRR

 

 

 

RT9193-33xB

 

 

 

 

 

 

VIN = 4V to 5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

250

CIN = COUT = 1μF

 

TJ = 125°C

 

 

 

CIN = COUT = 1μF, X7R

 

 

 

(mV)

 

 

 

 

 

0

 

 

 

 

 

 

200

 

 

 

 

 

 

PSRR (dB)

 

 

 

 

 

 

 

Dropout Voltage

 

 

 

 

 

 

-20

 

 

 

 

 

 

 

 

TJ = 25°C

 

 

 

 

 

 

 

 

 

150

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TJ = -40°C

 

-40

 

 

 

 

 

 

100

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ILoad = 100mA

 

 

 

 

 

 

 

 

 

-60

 

 

 

 

50

 

 

 

 

 

 

 

 

 

 

ILoad = 10mA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

-80

10

100

1K

10K

100K

1M

 

0

0.05

0.1

0.15

0.2

0.25

0.3

 

 

 

 

 

0.01

0.1

1

10

100

1000

Load Current (A)

Frequency (kHz)

EN Pin Shutdown Threshold vs. Temperature

EN Pin Shutdown Response

 

1.75

RT9193-15xU5

 

 

 

 

 

EN Pin Voltage

 

 

VIN = 5V

RT9193-28xU5

Threshold (V)

 

 

 

 

 

 

 

 

 

VIN = 3.3V

 

 

 

 

 

 

 

10

CIN = COUT = 1μF

No Load

1.50

CIN = COUT = 1μF X7R

 

 

 

 

(V)

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

1.25

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EN Pin Shutdown

1.00

 

 

 

 

 

 

 

 

Output Voltage

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.75

 

 

 

 

 

 

 

 

(V)

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-50

-25

0

25

50

75

100

125

 

 

 

Time (500μs/Div)

Temperature (°C)

Copyright ©2013 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

DS9193-16 January 2013

www.richtek.com

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