REG1117-33_技术文档

REG1117

REG1117A

R

E

G

1

7

SBVS001B – OCTOBER 2001

800mA and 1A Low Dropout Positive Regulator

1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable

DESCRIPTION

FEATURES

The REG1117 is a family of easy-to-use three-terminal

voltage regulators. The family includes a variety of fixed-

and adjustable-voltage versions, two currents (800mA and

1A) and two package types (SOT-223 and DDPAK). See the

chart below for available options.

ꢀ FIXED AND ADJUSTABLE VERSIONS

ꢀ 2.85V MODEL FOR SCSI-2 ACTIVE TERMINATION

ꢀ OUTPUT CURRENT:

REG1117: 800mA max

REG1117A: 1A max

Output voltage of the adjustable versions is set with two

external resistors. The REG1117’s low dropout voltage

allows its use with as little as 1V input-output voltage

differential.

ꢀ OUTPUT TOLERANCE: ±1% max

ꢀ DROPOUT VOLTAGE:

REG1117: 1.2V max at I_O= 800mA

REG1117A: 1.3V max at I_O= 1A

Laser trimming assures excellent output voltage accuracy

without adjustment. An NPN output stage allows output

stage drive to contribute to the load current for maximum

efficiency.

ꢀ INTERNAL CURRENT LIMIT

ꢀ THERMAL OVERLOAD PROTECTION

ꢀ

SOT-223 AND DDPAK SURFACE-MOUNT PACKAGES

800mA

SOT-223

1A

APPLICATIONS

ꢀ SCSI-2 ACTIVE TERMINATION

VOLTAGE

1.8V

DDPAK

SOT-223

DDPAK

ꢀ

2.5V

ꢀ HAND-HELD DATA COLLECTION DEVICES

ꢀ HIGH EFFICIENCY LINEAR REGULATORS

ꢀ BATTERY POWERED INSTRUMENTATION

2.85V

3.3V

ꢀ

5V

ꢀ

ꢀ BATTERY MANAGEMENT CIRCUITS FOR

Adj.

ꢀ

NOTEBOOK AND PALMTOP PCs

ꢀ CORE VOLTAGE SUPPLY: FPGA, PLD, DSP, CPU

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

www.ti.com

PACKAGE/ORDERING INFORMATION

SPECIFIED

TEMPERATURE

RANGE

PACKAGE

PACKAGE-LEAD DESIGNATOR

PACKAGE

MARKING

ORDERING

NUMBER

TRANSPORT

MEDIA, QUANTITY

PRODUCT

V

_O/I_O

800mA Output

REG1117-2.85

2.85/800mA

"/"

SOT223-3

DCY

KTT

DCY

0°C to +125°C

BB11172

REG1117-2.85

Rails, 80

"

Tape and Reel, 2500

REG1117-3.3

3.3/800mA

"/"

SOT223-3

0°C to +125°C

BB11174

REG1117-3.3

Rails, 80

"

Tape and Reel, 2500

REG1117F-3.3

3.3/800mA

"/"

DDPAK-3

0°C to +125°C

BB1117F4

REG1117F-3.3

Rails, 49

"

Tape and Reel, 500

REG1117-5

5V/800mA

"/"

SOT223-3

0°C to +125°C

BB11175

REG1117-5

Rails, 80

"

Tape and Reel, 2500

REG1117

Adj./800mA

"/"

SOT223-3

0°C to +125°C

BB1117

REG1117

Rails, 80

"

Tape and Reel, 2500

1A Output

REG1117A-1.8

1.8V/1A

"/"

SOT223-3

DCY

KTT

DCY

KTT

DCY

KTT

0°C to +125°C

R111718

REG1117A-1.8

Rails, 80

"

Tape and Reel, 2500

REG1117FA-1.8

1.8/1A

"/"

DDPAK-3

0°C to +125°C

REG1117FA1.8

REG1117FA-1.8

Rails, 49

"

Tape and Reel, 500

REG1117A-2.5

2.5/1A

"/"

SOT223-3

0°C to +125°C

R111725

REG1117A-2.5

Rails, 80

"

Tape and Reel, 2500

REG1117FA-2.5

2.5/1A

"/"

DDPAK-3

0°C to +125°C

REG1117FA2.5

REG1117FA-2.5

Rails, 49

"

Tape and Reel, 500

REG1117FA-5

5/1A

"/"

DDPAK-3

0°C to +125°C

REG1117FA5.0

REG1117FA-5.0

Rails, 49

"

Tape and Reel, 500

REG1117A

Adj./1A

"/"

SOT223-3

0°C to +125°C

BB1117A

REG1117A

Rails, 80

"

Tape and Reel, 2500

REG1117FA

Adj./1A

"/"

DDPAK-3

0°C to +125°C

REG1117FA

Rails, 49

"

Tape and Reel, 500

ABSOLUTE MAXIMUM RATINGS⁽¹⁾

ELECTROSTATIC

DISCHARGE SENSITIVITY

This integrated circuit can be damaged by ESD. Texas Instru-

ments recommends that all integrated circuits be handled with

appropriate precautions. Failure to observe proper handling

and installation procedures can cause damage.

Power Dissipation ........................................................... Internally Limited

Input Voltage ........................................................................................ 15V

Operating Junction Temperature Range............................. 0°C to +125°C

Storage Temperature Range .......................................... –65°C to +150°C

Lead Temperature (soldering, 10s)⁽²⁾............................................ +300°C

NOTE:(1)Stressesabovetheseratingsmaycausepermanentdamage. (2)See

“Soldering Methods.”

ESD damage can range from subtle performance degrada-

tion to complete device failure. Precision integrated circuits

may be more susceptible to damage because very small

parametric changes could cause the device not to meet its

published specifications.

CONNECTION DIAGRAM

Front View

Plastic DDPAK

Plastic SOT-223

Tab is

V_OUT

Tab is V_OUT

Ground V_OUT

(Adj.)⁽¹⁾

V_IN

Ground V_OUT

(Adj.)⁽¹⁾

V_IN

NOTE: (1) Adjustable-Voltage Model.

REG1117, REG1117A

2

SBVS001B

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ELECTRICAL CHARACTERISTICS

At T_J= +25°C, unless otherwise noted.

REG1117, REG1117A

TYP

PARAMETER

CONDITIONS

MIN

MAX

UNITS

OUTPUT VOLTAGE

REG1117-2.85

See Note 1

I_O= 10mA, V_IN= 4.85V

_O= 0 to 800mA, V_IN= 4.05 to 10V

2.820

2.790

2.85

2.880

2.910

V

I

REG1117-3.3

See Note 1

I_O= 10mA, V_IN= 5.3V

_O= 0 to 800mA, V_IN= 4.8 to 10V

3.270

3.240

3.30

3.330

3.360

V

I

REG1117-5

See Note 1

I_O= 10mA, V_IN= 7V

_O= 0 to 800mA, V_IN= 6.5 to 10V

4.950

4.900

5.00

5.050

5.100

V

I

REG1117A-1.8

See Note 1

I_O= 10mA, V_IN= 3.8V

_O= 0 to 1A, V_IN= 3.8V to 10V

1.782

1.764

1.8

1.818

1.836

V

I

REG1117A-2.5

See Note 1

I_O= 10mA, V_IN= 4.5V

_O= 0 to 1A, V_IN= 4.5V to 10V

2.475

2.450

2.5

2.525

2.550

V

I

REG1117A-5

See Note 1

I_O= 10mA, V_IN= 7V

_O= 0 to 1A, V_IN= 7V to 10V

4.950

4.900

5.0

5.050

5.100

V

I

REFERENCE VOLTAGE

REG1117 (Adjustable)

See Note 1

I

_O= 10mA, V_IN– V_O= 2V

1.238

1.225

1.250

1.262

1.280

V

I

_O= 10 to 800mA, V_IN– V_O= 1.4 to 10V

REG1117A (Adjustable)

See Note 1

I_O= 10mA, V_IN– V_O= 2V

_O= 10mA to 1A, V_IN– V_O= 1.4 to 10V

1.238

1.225

1.250

1.262

1.280

V

I

LINE REGULATION

REG1117-2.85⁽¹⁾

I_O= 0, V_IN= 4.25 to 10V

I_O= 0, V_IN= 4.8 to 10V

I_O= 0, V_IN= 6.5 to 15V

1

2

3

0.1

1

7

10

0.4

7

mV

%

REG1117-3.3⁽¹⁾

REG1117-5⁽¹⁾

REG1117 (Adjustable)⁽¹⁾

REG1117A (Adjustable)⁽¹⁾

REG1117A-1.8⁽¹⁾

REG1117A-2.5⁽¹⁾

REG1117A-5.0⁽¹⁾

I_O= 10mA, V_IN– V_O= 1.5 to 13.75V

I_O= 0, V_IN= 3.8V to 10V

%

mV

I_O= 0, V_IN= 4.5V to 10V

I_O= 0, V_IN= 7V to 15V

1

3

7

10

LOAD REGULATION

REG1117-2.85⁽¹⁾

REG1117-3.3⁽¹⁾

I_O= 0 to 800mA, V_IN= 4.25V

I_O= 0 to 800mA, V_IN= 4.8V

I_O= 0 to 800mA, V_IN= 6.5V

I_O= 10 to 800mA, V_IN– V_O= 3V

I_O= 10mA to 1A, V_IN– V_O= 3V

2

3

0.1

2

10

12

15

0.4

10

15

mV

%

REG1117-5⁽¹⁾

REG1117 (Adjustable)⁽¹⁾⁽²⁾

REG1117A (Adjustable)⁽¹⁾⁽²⁾

REG1117A-1.8

REG1117A-2.5

REG1117A-5

%

I_O= 0 to 1A, V_IN= 3.8V

I_O= 0 to 1A, V_IN= 4.5V

I_O= 0 to 1A, V_IN= 7.0V

mV

2

3

DROPOUT VOLTAGE⁽³⁾

All Models⁽¹⁾

I_O= 100mA

1.00

1.05

1.10

1.2

1.10

1.15

1.20

1.30

1.55

V

See Note 1

REG1117 Models⁽¹⁾

REG1117A

I_O= 500mA

I_O= 800mA

I

_O= 1A

See Note 1

1.2

CURRENT LIMIT

REG1117 Models

REG1117A

V_IN– V_O= 5V

_IN– V_O= 5V

800

1000

950

1250

1200

1600

mA

V

MINIMUM LOAD CURRENT

Adjustable Models⁽¹⁾⁽²⁾

V_IN– V_O= 13.75V

1.7

5

mA

QUIESCENT CURRENT

Fixed-Voltage Models⁽¹⁾

V_IN– V_O= 5V

4

10

mA

Adjust Pin Current⁽¹⁾⁽²⁾

I_O= 10mA, V_IN– V_O= 1.4 to 10V

I_O= 10mA to 800mA, V_IN– V_O= 1.4 to 10V

I_O= 10mA to 1A, V_IN– V_O= 1.4 to 10V

50

0.5

120

5

µA

vs Load Current, REG1117⁽¹⁾

vs Load Current, REG1117A⁽¹⁾

THERMAL REGULATION

All Models⁽⁴⁾

30ms Pulse

0.01

62

0.1

%/W

dB

RIPPLE REJECTION

All Models

f = 120Hz, V_IN– V_OUT= 3V + 1Vp-p Ripple

TEMPERATURE DRIFT

Fixed-Voltage Models

Adjustable Models

T_J= 0°C to +125°C

0.5

2

%

REG1117, REG1117A

3

SBVS001B

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ELECTRICAL CHARACTERISTICS (Cont.)

At T_J= +25°C, unless otherwise noted.

REG1117, REG1117A

TYP

PARAMETER

CONDITIONS

MIN

MAX

UNITS

%

LONG-TERM STABILITY

All Models

T

_A= +125°C, 1000Hr

f = 10Hz to 10kHz

0.3

OUTPUT NOISE

rms Noise, All Models

0.003

%

THERMAL RESISTANCE

Operating Junction Temperature Range

Storage Range

0

–65

+125

+150

°C

Thermal Resistance, θ_JC

(Junction-to-Case at Tab)

3-Lead SOT-223 Surface-Mount

3-Lead DDPAK Surface-Mount

15

2

3

°C/W

f > 50Hz

dc

Thermal Resistance, θ_JA

(Junction-to-Case at Tab)

No Heat Sink

3-Lead DDPAK Surface-Mount

65

°C/W

NOTES: (1) Specification applies over the full operating Junction temperature range, 0°C to +125°C. (2) REG1117 and REG1117A adjustable versions require a

minimum load current for ±3% regulation. (3) Dropout voltage is the input voltage minus output voltage that produces a 1% decrease in output voltage.

(4) Percentage change in unloaded output voltage before versus after a 30ms power pulse of I_O= 800mA (REG1117 models), I_O= 1A (REG1117A), V_IN– V_O

=

1.4V (Reading taken 10ms after pulse).

SIMPLIFIED SCHEMATIC

V_IN

+

Current

Limit

Thermal

Limit

V_OUT

10X

(Substrate)

Ground (Fixed-Voltage Models)

Adj. (Adjustable-Voltage Model)

REG1117, REG1117A

4

SBVS001B

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TYPICAL CHARACTERISTICS

At T_J= +25°C, all models, unless otherwise specified.

LOAD REGULATION

(∆I_LOAD= 800mA)

SHORT-CIRCUIT CURRENT vs TEMPERATURE

1400

1

0

1300

REG1117-2.85

REG1117A-1.8

–1

–2

–3

–4

–5

–6

–7

REG1117A

1200

1100

REG1117 Models

1000

REG1117-5

900

800

–50

–25

0

25

50

75

100

–50

–25

0

25

50

75

100

Temperature (°C)

LINE REGULATION vs TEMPERATURE

RIPPLE REJECTION vs FREQUENCY

6

100

90

80

70

60

50

40

30

20

10

0

I_OUT= 100mA

_RIPPLE= 1.0Vp-p

5

4

V

V_IN= 6.5V to 15V

REG1117-5

3

2

1

REG1117-1.8

0

V

_IN= 3.8V to 10V

–1

–2

–50

–25

0

25

Temperature (°C)

50

75

10

100

1k

10k

100k

Frequency (Hz)

OUTPUT VOLTAGE vs TEMPERATURE

QUIESCENT CURRENT vs TEMPERATURE

Fixed-Voltage Models

2.0

1.0

8

7

6

5

4

3

2

1

0

I_O= 10mA

0

–1.0

–2.0

–50

–25

0

25

50

75

–50

–25

0

25

50

75

100

Temperature (°C)

REG1117, REG1117A

5

SBVS001B

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TYPICAL CHARACTERISTICS (Cont.)

At T_J= +25°C, all models, unless otherwise specified.

LINE TRANSIENT RESPONSE

LOAD TRANSIENT RESPONSE

60

40

C_IN= 1µF

_OUT= 10µF Tantalum

I_OUT= 0.1A

0.1

0

C

20

–0.1

0

–20

–40

5.25

4.25

3.25

C_IN= 10µF

0.5

0

C

_OUT= 10µF

Tantalum

_IN= 4.25V

Preload = 0.1A

V

–0.5

0

20

40 60

80 100 120 140 160 180 200

Time (µs)

0

20

40

Time (µs)

60

80

100

APPLICATIONS INFORMATION

Figure 1 shows the basic hookup diagram for fixed-voltage

models. All models require an output capacitor for proper

operation and to improve high frequency load regulation. A

10µF tantalum capacitor is recommended. Aluminum elec-

trolytic types of 50µF or greater can also be used. A high

quality capacitor should be used to assure that the ESR

(Effective Series Resistance) is less than 0.5Ω.

V_IN

V_O

REG1117

10µF

+

+ 10µF

Tantalum

Figure 2 shows a hookup diagram for the adjustable voltage

model. Resistor values are shown for some commonly used

output voltages. Values for other voltages can be calculated

from the equation shown in Figure 2. For best load regula-

tion, connect R₁close to the output pin and R₂close to the

ground side of the load as shown.

FIGURE 1. Fixed-Voltage Model—Basic Connections.

V_IN

V_O

3

2

REG1117

(Adj)

V_OUT(V)

R₁(Ω)⁽²⁾

R₂(Ω)⁽²⁾

1.25

1.5

2.1

2.85

3

3.3

5

10

Open

750

158

169

137

115

113

Short

147

107

215

191

187

340

787

C

C₁

+

2

R₁+ R₂

R₁

R₂

10µF

V_O

=

• (1.25V) + (50µA) (R₂)

1

Load

(1)

C₃

+

This term is negligible with

proper choice of values—see

table at right.

10µF

NOTE: (1) C₃optional. Improves high-frequency line rejection. (2) Resistors are standard 1% values.

FIGURE 2. Adjustable-Voltage Model—Basic Connections.

REG1117, REG1117A

6

SBVS001B

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THERMAL CONSIDERATIONS

until the device’s thermal shutdown is activated. If this

occurs at more than 40°C above the maximum expected

ambient temperature, then the T_Jwill be less than 125°C

during normal operation.

The REG1117 has current limit and thermal shutdown

circuits that protect it from overload. The thermal shutdown

activates at approximately T_J= 165°C. For continuous op-

eration, however, the junction temperature should not be

allowed to exceed 125°C. Any tendency to activate the

thermal shutdown in normal use is an indication of an

inadequate heat sink or excessive power dissipation. The

power dissipation is equal to:

The internal protection circuitry of the REG1117 was de-

signed to protect against overload conditions. It was not

intended to replace proper heat sinking. Continuously run-

ning the REG1117 into thermal shutdown will degrade

reliability.

P_D= (V_IN– V_OUT) I_OUT

The junction temperature can be calculated by:

T_J= T_A+ P_D(θ_JA)

LAYOUT CONSIDERATIONS

The DDPAK (REG1117F-3.3 and REG1117FA) is a sur-

face-mount power package that has excellent thermal char-

acteristics. For best thermal performance, its mounting tab

should be soldered directly to a circuit board copper area, as

shown in Figure 3. Increasing the copper area improves heat

dissipation. Figure 4 shows typical thermal resistance from

junction-to-ambient as a function of the copper area.

where T_Ais the ambient temperature, and

θ_JAis the junction-to-ambient thermal resistance

A simple experiment will determine whether the maximum

recommended junction temperature is exceeded in an actual

circuit board and mounting configuration: Increase the am-

bient temperature above that expected in normal operation

(1)

3-Lead DDPAK

0.51

All measurements

in inches.

0.155

0.05

0.10

NOTE: (1) For improved thermal performance increase

footprint area. See Figure 4, “Thermal Resistance vs

Circuit Board Copper Area”.

FIGURE 3. DDPAK Thermal Resistance versus Circuit Board Copper Area.

THERMAL RESISTANCE vs

CIRCUIT BOARD COPPER AREA

60

Circuit Board Copper Area

REG1117F

50

40

30

20

10

DDPAK Surface Mount Package

1oz copper

θ

REG1117F

DDPAK Surface-Mount Package

0

1

2

3

4

5

Copper Area (inches²)

FIGURE 4. DDPAK Thermal Resistance versus Circuit Board Copper Area.

REG1117, REG1117A

7

SBVS001B

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TOPSIDE⁽¹⁾BACKSIDE

SOT-223

The SOT-223 package derives heat sinking from conduction

through its copper leads, especially the large mounting tab.

These must be soldered to a circuit board with a substantial

amount of copper remaining, as shown in Figure 5. Circuit

board traces connecting the tab and the leads should be made

as large as practical. The mounting tab of both packages is

TOTAL PC BOARD

AREA

COPPER

AREA

COPPER

AREA

THERMAL RESISTANCE

JUNCTION-TO-AMBIENT

2500mm²

1600mm²

2500mm²

1600mm²

900mm²

2500mm²

1250mm²

950mm²

2500mm²

1800mm²

600mm²

1250mm²

915mm²

600mm²

340mm²

2500mm²

46°C/W

47°C/W

49°C/W

51°C/W

53°C/W

55°C/W

58°C/W

59°C/W

67°C/W

72°C/W

85°C/W

2500mm²

0

electrically connected to V_OUT

.

0

1600mm²

0

Total Area: 50 x 50mm

35 x 17 mm

0

900mm²

0

900mm²

NOTE: (1) Tab is attached to the topside copper.

TABLE I.

16 x 10 mm

INSPEC Abstract Number: B91007604, C91012627

Kelly, E.G. “Thermal Characteristics of Surface 5WK9Ω

Packages.” The Proceedings of SMTCON. Surface Mount

TechnologyConferenceandExposition:CompetitiveSurface

Mount Technology, April 3-6, 1990, Atlantic City, NJ, USA.

Abstract Publisher: IC Manage, 1990, Chicago, IL, USA.

Without back-side copper: θ_JA≈ 59°C/W

With solid back-side copper: θ_JA≈ 49°C/W

FIGURE 5. SOT-223 Circuit Board Layout Example.

Other nearby circuit traces, including those on the back side

of the circuit board, help conduct heat away from the device,

even though they may not be electrically connected. Make

all nearby copper traces as wide as possible and leave only

narrow gaps between traces.

MAXIMUM POWER DISSIPATION

vs AMBIENT TEMPERATURE

6

θ

= 27°C/W

(4in one oz copper

mounting pad)

P_D= (T_J(max) – T_A) /θ_JA

T_J(max) = 150°C

JA

2

5

4

3

2

1

0

Table I shows approximate values of θ_JAfor various circuit

board and copper areas for the SOT-223 package. Nearby

heat dissipating components, circuit board mounting condi-

tions, and ventilation can dramatically affect the actual θ_JA.

Proper heat sinking significantly increases the maximum

power dissipation at a given ambient temperature, as shown

in Figure 6.

DDPAK

SOT-223

θ

= 46°C/W

(2500mm topside and

backside copper)

JA

2

θ

= 65°C/W

JA

(no heat sink)

θ

= 85°C/W

(340mm topside copper,

no backside copper)

JA

2

0

25

50

75

100

125

SOLDERING METHODS

Ambient Temperature (°C)

Both REG1117 packages are suitable for infrared reflow and

vapor-phase reflow soldering techniques. The high rate of

temperature change that occurs with wave soldering, or hand

soldering can damage the REG1117.

FIGURE 6. Maximum Power Dissipation versus Ambient

Temperature.

REG1117, REG1117A

8

SBVS001B

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TERMPWR

5V

2.85V

110Ω

2.85V

1N5817

REG1117-2.85

10µF

(Up to 27 Lines)

FIGURE 7. SCSI Active Termination Configuration.

REG1117-5

In

Out

In

Out

V_IN> 12V

10µF

5V to 10V

100µF

V_IN> 9.0V

10µF

7.5V

+

GND

100µF

2.5V_OUT

+

10µF

1kΩ

REF1004-2.5

FIGURE 8. Adjusting Output of Fixed Voltage Models.

FIGURE 9. Regulator with Reference.

REG1117-5

5.2V Line

5.0V Battery

V_IN

In

Out

+

GND

10µF

50Ω

1kΩ

REG1117-5

In

Out

GND

+

6.5V

10µF

100µF

FIGURE 10. Battery Backed-Up Regulated Supply.

REG1117-5

V_IN

In

Out

+

GND

10µF

100µF

V_OUT= –5V

Floating Input

FIGURE 11. Low Dropout Negative Supply.

REG1117, REG1117A

9

SBVS001B

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PACKAGE DRAWINGS

DCY (R-PDSO-G4)

MPDS094 – APRIL 2001

PLASTIC SMALL-OUTLINE

0.264 (6,70)

0.248 (6,30)

0.124 (3,15)

0.116 (2,95)

0.146 (3,70)

0.130 (3,30)

0.287 (7,30)

0.264 (6,70)

0.041 (1,05)

0.033 (0,85)

0.0905 (2,30) NOM

0.181 (4,60)

NOM

0.067 (1,70)

0.060 (1,50)

0.051 (1,30)

0.043 (1,09)

0.014 (0,36)

0.010 (0,25)

10° MAX

0.004 (0,10)

0.0008 (0,02)

0.033 (0,84)

0.026 (0,66)

0.012 (0,30) MIN

4202506/A 03/01

NOTES: A. All linear dimensions are in inches (millimeters).

B. This drawing is subject to change without notice.

REG1117, REG1117A

10

SBVS001B

www.ti.com

PACKAGE DRAWINGS

KTT (R-PSFM-G3)

MPSF006A – SEPTEMBER 1999 – REVISED SEPTEMBER 2000

PLASTIC FLANGE-MOUNT

0.170 (4,31)

0.180 (4,57)

0.396 (10,05)

0.406 (10,31)

0.055 (1,40)

0.066 (1,68)

0.045 (1,14)

0.055 (1,40)

0.098 (2,49)

0.108 (2,74)

0.326 (8,28)

0.336 (8,53)

0.000 (0,00)

0.010 (0,25)

0.580 (14,73)

0.620 (15,75)

0.026 (0,66)

0.036 (0,91)

0.100 (2,54)

0.010 (0,25)

0.017 (0,43)

0.023 (0,58)

0.090 (2,29)

0.110 (2,79)

0° – 8°

4200577-2/B 09/00

NOTES: A. All linear dimensions are in millimeters.

B. This drawing is subject to change without notice.

C. Dimensions do not include mold protrusions, not to exceed 0.006 (0,15).

REG1117, REG1117A

11

SBVS001B

www.ti.com

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型号：	REG1117-33
厂家：	ETC
描述：	800mA and 1A Low Dropout (LDO) Positive Regulator 1.8V. 2.5V. 2.85V. 3.3V. 5V. and Adj 800毫安和1A低压降（ LDO ）稳压器正1.8V 。 2.5V 。 2.85V 。 3.3V 。 5V 。并调\n 稳压器
文件：	总12页 (文件大小：385K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

REG1117-33 [ETC]

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