Datasheet gs7163 Datasheets

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3A Ultra Low Dropout Linear Regulator GS7163

Features

 Maximum 3A Low-Dropout Voltage Regulator

General Description

The GS7163 can deliver up to 3A of continuous

 Ultra Low Dropout Voltage

Typically 170mV at 3A Output Current

 High Output Accuracy over Line, Load and

Temperature

 Build-In Soft-Start  Power-On-Reset Monitoring on Both VCNTL

and VIN Pins

 Power-OK Output function  Low ESR Output Capacitor(Multi-layer Chip

Capacitors (MLCC)) Applicable

 Vout Pull Low Resistance when Disable  TDFN10-3x3 package.  Green Product (RoHS, Lead-Free,

Halogen-Free Compliant)

Applications

 Notebook PC Applications

output current with a typical dropout voltage of only 170mV using internal n-channel MOSFETs. The linear regulator uses a separate VCNTL supply to power the control circuitry and drive the Inter- nal n-channel MOSFETs. The output voltage is adjustable from 1.05V to the voltage that is very close to VIN. The GS7163 allows the use of low-ESR ceramic capacitor as low as 10uF. Moreover the IC provides good performance on both line transient response and load transient response. The GS7163 provides current limit, short current protection and thermal shutdown to prevent the linear regulator from damage. Built-in soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. During start-up, POK remain low until the output

 Motherboard Applications  Low Voltage Logic Supplies  Microprocessor and Chipset Supplies  Graphic Cards  Cordless phones

reaches 92% of its rating value. The GS7163 is available in TDFN10-3x3 package.

Green Solution Technology Co.,LTD. Rev.:1.22 1 Jan-16

VOUT

VDD

VOUT

VDD

FB

GND

POK

EN

VIN

VO=0.8*(1+R1/R2)

3A Ultra Low Dropout Linear Regulator GS7163

Typical Application

Function Block Diagram

Figure 1Typical Application of GS7163

Green Solution Technology Co.,LTD. Rev.:1.22 2 Jan-16

Figure 2 Function Block Diagram

7163

ZZDD

Pin No.

Name

I/O type

Pin Function

TDFN10-3x3

1

POK

O

Open drain output. Setting high impedance once V

OUT

reaches 92%

of its rating voltage

2

FB

I

Feedback Voltage. This pin is connected to the center tap of an external resistor divider network to set the output voltage as V

OUT

=

0.8(R1+R2)/R2.

3、4、5

VOUT

O

Output Voltage. The power output of the device.

6、7、8

VIN

I

Input Voltage. Large bulk capacitance should be placed closely to this pin. A 10μF ceramic capacitor is recommended at this pin.

9

EN

I

Chip Enable (active high). This pin is internal pull high to VDD. The device will be shutdown if this pin is pull low.

10

VDD

I

Supply voltage for control circuit. This pin provides bias voltage to the control circuit and driver for the pass transistor. For better current capability, A 3V to 5V supply voltage for control circuit is recommended and supply voltage should be 1.5V higher than the output voltage.

11

GND

I/O

Ground.

POK

FB

VOUT

GND

VDD

EN

VIN

3A Ultra Low Dropout Linear Regulator GS7163

Pin Configuration

TDFN10-3x3

( Top view)

Pin Descriptions

Green Solution Technology Co.,LTD. Rev.:1.22 3 Jan-16

No

Item

Contents

1

Package

TD:TDFN10-3x3

2

Shipping

R: Tape & Reel

Parameter

Symbol

Limits

Units

Supply Voltage

VIN

1 < VIN < 6

V

Control Voltage

VCNTL

3 < VCNTL< 6

V

Output Voltage

VO

0.8 < VO<5

V

Package Power Dissipation at TA ≦25°C

P

D_TDFN10-3x3

1670

mW

Junction Temperature

TJ

- 45 ~ 150

°C

Storage Temperature

T

STG

- 65 ~ 150

°C

Lead Temperature (Soldering) 10S

T

LEAD

260

°C

ESD (Human Body Mode) (Note 2)

V

ESD_HBM

2K

V

ESD (Machine Mode) (Note 2)

V

ESD_MM

200

V

Parameter

Symbol

Limits

Units

Thermal Resistance Junction to Ambient

θ

JA_TDFN10-3x3

60

°C/W

Thermal Resistance Junction to Case

θ

JC_TDFN10-3x3

5

°C/W

Parameter

Symbol

Limits

Units

Supply Voltage

VIN

1.05< VIN < Min{VCNTL+0.3V,5.5}

V

Control Voltage

VDD

3.0 < VCNTL< 5.5

V

Junction Temperature

TJ

- 40 ~ 125

°C

Ambient Temperature

TA

-40 ~ 85

°C

2. Shipping

1. Package

3A Ultra Low Dropout Linear Regulator GS7163

Ordering Information

GS7163PP-R

Example: GS7163 TDFN10-3x3 Tape & Reel ordering information is “GS7163TD-R”

Absolute Maximum Rating (Note 1)

Thermal Information (Note 3)

Recommend Operating Condition (Note 4)

Green Solution Technology Co.,LTD. Rev.:1.22 4 Jan-16

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Units

Supply Voltage Section

V

CNTL

Operation Voltage

Range

V

CNTL

V

CNTL

Input Range, VO=V

REF

3.0 5.5

V

VIN Operation Voltage Range

VIN

V

IN

Input Range, VO=V

REF

1.05

Min{V

CNTL

+0.3V,5.5}

V

CNTL

Input current

I

CNTL

V

CNTL=VIN=VEN

=5V, IO=0A,

VO=V

REF

1.0

1.5

mA

Control Input Current in Shutdown

ISD

V

CNTL=VIN

=5.0V, IO=0A,

VEN=0V

0.1

30

uA

V

CNTL

POR Threshold

V

CNTLTH

2.5

2.7

2.9

V

CNTL

POR Hysteresis

0.4 V

VIN POR Threshold

V

INTH

0.8

0.9

1.0

V

VIN POR Hysteresis

0.2

0.35

0.5

V

VIN POR Falling Delay Time

100 us

Output Voltage

Reference Voltage

V

REF

V

CNTL=VIN=VEN

=5V, IO=1mA

0.792

0.8

0.808

V

Line Regulation (V

CNTL

)

△V

LINE_CNTL

V

CNTL

=4V to 5V, IO=1mA,

VO=V

REF

, VIN=2V

0.03

0.2

%

Line Regulation (VIN)

△ V

LINE_IN

VIN=1.2V to 5V, IO=1mA, VO=V

REF

0.01

0.1

%

Load Regulation

(Note 5)

△ V

LOAD

V

CNTL=VEN

=5V, VIN=2V, IO=1mA

to 3 A, VO=V

REF

0.1

1.5

%

VO Pull Low Resistance

V

CNTL=VIN

=5.0V, VEN=0V

100

150

Ω

Dropout Voltage

(Note 6)

V

DROP

V

CNTL

=5V, VO=1.2V, IO=2A

110

170

mV

V

CNTL

=5V, VO=1.2V, IO=3A

170

250

mV

Protection

Current Limit(OCP)

ILIM

V

CNTL=VIN=VEN

=5V, VO=V

REF

4.5 6 A

OCP trip mode

OCP Re-try, ON:OFF=1:5

1:5

V

FB

Under Voltage

Threshold

UVPFB

VFB Falling

0.4 V

Thermal Shutdown Temperature

TSD

TJ Rising

160 °C

3A Ultra Low Dropout Linear Regulator GS7163

Electrical Characteristics

(VIN= VO+0.5V, VEN=V

=5V, CIN=CO=10uF, TA=TJ=25°C)

CNTL

Green Solution Technology Co.,LTD. Rev.:1.22 5 Jan-16

Thermal Shutdown Hysteresis

40 °C

Enable

EN Threshold

Logic-Low Voltage

V

CNTL

=5V

0.3

V

Logic-High Voltage

V

CNTL

=5V

1.1

V

EN Internal Impedance

EN to V

CNTL

Impedance

0.5 1

MegΩ

EN Input Bias Current

IEN

VEN=0V

5 10

uA

Soft Start Time

TSS

From 10%*Vo to 90%*Vo

0.6 1 2

mS

Power OK

POK Threshold Voltage for Power OK

V

POK

VFB Rising

90

92

94

%

POK Threshold Voltage for Power NOT OK

V

PNOK

VFB falling

80

82

84

%

POK Sink Capability

I

POK

=5mA

0.4

V

POK Delay time

T

DELAY

1 2 4

mS

3A Ultra Low Dropout Linear Regulator GS7163

Note 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the

device. These are for stress ratings. 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 for extended periods may remain possibility to affect device reliability.

Note 2. Devices are ESD sensitive. Handling precaution recommended. Note 3. θ

is measured in the natural convection at TA=25℃ on a high effective thermal conductivity test

JA

board (4 Layers, 2S2P) of JEDEC 51-7 thermal measurement standard. The case point of θJC is on the expose pad for PSOP-8 package.

Note 4. The device is not guaranteed to function outside its operating conditions. Note 5. Regulation is measured at constant junction temperature by using a 2ms current pulse. Devices

are tested for load regulation in the load range from 1mA to 3A.

Note 6. The Dropout voltage is defined as VIN-V

, which is measured when V

OUT

is 0.98*V

OUT

OUT(NORMAL)

.

The Dropout voltage is measured at constant junction temperature by using a 2ms current pulse.

Green Solution Technology Co.,LTD. Rev.:1.22 6 Jan-16

VIN Line Transient Response

VO=1.2V, I

OUT

=0

VIN Line Transient Response

VO=1.2V,I

OUT

=1A

V

CNTL

Line Transient Response

VO=1.2V,I

OUT

=0

V

CNTL

Line Transient Response

VO=1.2V,

IOUT

=1A

Load Transient Response

VO=1.2V，C

OUT

=22uF

Power On from VIN

V

CNTL

=5V, VIN=3.3V, VO=1.6V，CO=2200uF,no load

3A Ultra Low Dropout Linear Regulator GS7163

Typical Characteristics

Green Solution Technology Co.,LTD. Rev.:1.22 7 Jan-16

Turn On from EN

VEN=5V, VO=1.6V，CO=2200uF,no load

Power On from V

CNTL

V

CNTL

=5V, VIN=3.3V, VO=1.6V，CO=2200uF,no load

Dropout Voltage vs. Output Current

On Resistance vs. Temperature

Shutdown Current vs. Input Voltage

Output Short Current

3A Ultra Low Dropout Linear Regulator GS7163

Green Solution Technology Co.,LTD. Rev.:1.22 8 Jan-16

Quiescent Current vs. Input Voltage

Quiescent Current vs. Temperature

FB Voltage vs. Temperature

3A Ultra Low Dropout Linear Regulator GS7163

Green Solution Technology Co.,LTD. Rev.:1.22 9 Jan-16

Cout

Rbottom

Ceramic

≥10uF

≥0.1KΩ

EL

1000uF

≥100KΩ

3A Ultra Low Dropout Linear Regulator GS7163

Application Information

Enable

function. It allows the output current to reach the The GS7163 has a dedicated enable pin(EN). When the EN pin is in the logic low (VEN<0.3V), the regulator will be turned off, reducing the supply current to less than 1uA. When the EN pin is in the logic high (VEN>1.1V), the regulator will be turned on and undergoes a new soft-start cycle. Left open, the EN pin is pulled up by an internal resistor to turn on the regulator.

Power-on-Reset

The GS7163 features a power-on-reset control through monitor both input voltages to prevent wrong operations. Only after the two supply voltages exceed their rising POR threshold voltages, the regulator is to be initiated and starts up.

POK

maximum value of 4.5A. Then further decreases

in the load resistance reduce both the load

current and the load voltage.

Thermal-Shutdown Protection

Thermal Shutdown protects GS7163 from ex-

cessive power dissipation. If the die temperature

exceeds 160°C, the pass transistor is shut off.

40°C of hysteresis prevents the regulator from

turning on until the die temperature drops to

120°C.

Output Capacitor selection

The GS7163 is designed to employ ceramic

output capacitors as low as 10uF; if employ EL

output capacitor as large as 1000uF, feedback

resistance (Rbottom) should be larger than 100K

ohm(Table 1). Place the capacitors physically as

close as possible to the device with wide and The POK pin is an open-drain output, and can be connects to V

or other rail through an external

OUT

pull-up resistor. As the output voltage arrives 92% of normal output voltage, an internal delay function starts to perform a delay time and then output the POK pin high to indicate the output is OK. As the output voltage falls below the falling Power-OK threshold or one of the two supply voltages falls below it’s falling POR threshold, the POK pin will output low immediately without a delay time.

Build-In Soft-Start

An internal soft-start function controls rise rate of the output voltage to limit the current surge at start-up. The typical soft-start interval is about 1mS.

Current Limit

The GS7163 contains over current protection

direct PCB traces. Capacitor ESR should be less

than 50mohm.

Table 1 Cout capacitor vs. Rbottom resistance

Input Capacitor selection

Bypass VIN to ground with a 10uF or greater

capacitor. Bypass VCNTL to ground with a 1uF

capacitor for normal operation in most appli-

cations. Ceramic, tantalum or aluminum elec-

trolytic capacitors may be selected for input

capacitor. However ceramic capacitors are

recommended due to their significant cost and

space savings. Place the capacitors physically as

close as possible to the device with wide and

direct PCB traces.

Green Solution Technology Co.,LTD. Rev.:1.22 10 Jan-16

3A Ultra Low Dropout Linear Regulator GS7163

Power Dissipation and Layout Considerations

Although internal thermal limiting function is integrated in GS7163, continuously keeping the junction near the thermal shutdown temperature may possibly affect device reliability. For continuous operation, it is highly recommended to keep the junction temperature below the maximum operation junction temperature 125°C for maximum reliability. The power dissipation definition in device is: PD = (VIN − VO) x IO + VCNTL x IQ The maximum power dissipation can be calculated as: P Where T temperature 125°C, TA is the ambient

temperature and the θ

thermal resistance.

D(MAX)

= ( T

J(MAX)

− TA ) / θJA

J(MAX)

is the maximum operation junction

is the junction to ambient

JA

Green Solution Technology Co.,LTD. Rev.:1.22 11 Jan-16

A3

Top view

10

Bottom view

Pin #1 ID Options Note:The configuration of the Pin#1 identifier is optional,but must be located within the zone indicated.

A1

Side view

D

E

E1

D1

L

e

b

6

7

8

9

5

4

321

10

E1

D1

L

e

b

6

7

8

9

5

4

3

2

1

10

E1

D1

L

e

b

6

7

8

9

5

4

3

2

1

A

Symbol

Dimensions in

Millimeters

Min.

Max.

A

0.70

0.80

A1

0.00

0.05

A3

0.203 REF.

b

0.18

0.30

e

0.50 REF.

D

2.90

3.10

E

2.90

3.10

D1

2.30 REF.

E1

1.65 REF.

L

0.30

0.50

3A Ultra Low Dropout Linear Regulator GS7163

Package Dimensions, TDFN10-3x3

Note:

1. Min.: Minimum dimension specified.

2. Max.: Maximum dimension specified.

3. REF.: Reference. Normal/Regular dimension specified for reference.

Green Solution Technology Co.,LTD. Rev.:1.22 12 Jan-16

3A Ultra Low Dropout Linear Regulator GS7163

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Please read the notice stated in this preamble carefully before Admission e accessing any contents of the

document attached. Admission of GStek’s statement therein is presumed once the document is released

to the receiver.

Notice:

Firstly, GREEN SOLUTION CO., LTD. (GStek) reserves the right to make corrections, modifications, enhancements, improvements, and

other changes to its information herein without notice.. And the aforesaid information does not form any part or parts of any quotation or contract between GStek and the information receiver.

Further, no responsibility is assumed for the usage of the aforesaid information. GStek makes no representation that the interconnect of its circuits as described herein will not infringe on exiting or future patent rights and other intellectual property rights, nor do the descriptions contained herein express or imply that any licenses under any GStek patent right, copyright, mask work right, or other GStek intellectual property right relating to any combination, machine, or process in which GStek products or services are used.

Besides, the product in this document is not designed for use in life support appliances, devices, or systems where malfunction of this product can reasonably be expected to result in personal injury. GStek customers’ using or selling this product for use in such applications shall do so at their own risk and agree to fully indemnify GStek for any damage resulting from such improper use or sale.

At last, the information furnished in this document is the property of GStek and shall be treated as highly confidentiality; any kind of distribution, disclosure, copying, transformation or use of whole or parts of this document without duly authorization from GStek by prior written consent is strictly prohibited. The receiver shall fully compensate GStek without any reservation for any losses thereof due to its violation of GStek’s confidential request. The receiver is deemed to agree on GStek’s confidential request therein suppose that said receiver receives this document without making any expressly opposition. In the condition that aforesaid opposition is made, the receiver shall

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Green Solution Technology Co.,LTD. Rev.:1.22 13 Jan-16