LM2936MX-3.0/NOPB_技术文档

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October 2006

LM2936

Ultra-Low Quiescent Current LDO Voltage Regulator

General Description

Features

n Ultra low quiescent current (I_Q≤ 15 µA for I_O= 100 µA)

n Fixed 3.0V, 3.3V or 5.0V with 50 mA output

The LM2936 ultra-low quiescent current regulator features

low dropout voltage and low current in the standby mode.

With less than 15 µA quiescent current at a 100 µA load, the

LM2936 is ideally suited for automotive and other battery

operated systems. The LM2936 retains all of the features

that are common to low dropout regulators including a low

dropout PNP pass device, short circuit protection, reverse

battery protection, and thermal shutdown. The LM2936 has

a 40V maximum operating voltage limit, a −40˚C to +125˚C

operating temperature range, and 3% output voltage toler-

ance over the entire output current, input voltage, and tem-

perature range. The LM2936 is available in a TO-92 pack-

age, SO-8 and SOT–23 surface mount packages, and a

TO-252 surface mount power package.

n

2% Initial output tolerance

3% Output tolerance over line, load, and temperature

@

n Dropout voltage typically 200 mV I_O= 50 mA

n Reverse battery protection

n −50V reverse transient protection

n Internal short circuit current limit

n Internal thermal shutdown protection

n 40V operating voltage limit

n 60V operating voltage limit for LM2936HV

n Shutdown Pin available with LM2936BM package

Typical Application

00975901

* Required if regulator is located more than 2" from power supply filter capacitor.

** Required for stability. See Electrical Characteristics for required values. Must be rated over intended operating temperature range. Effective series

resistance (ESR) is critical, see curve. Locate capacitor as close as possible to the regulator output and ground pins. Capacitance may be increased

without bound.

DS009759

www.national.com

Connection Diagrams

TO-252

SOT-223

00975925

Top View

LM2936DT

00975926

Top View

LM2936MP

See NS Package Number TD03B

See NS Package Number MP04A

8-Pin SO (M)

00975906

00975927

Top View

LM2936M and LM2936HVMA

See NS Package Number M08A

LM2936BM and LM2936HVBMA

See NS Package Number M08A

TO-92

8-Pin Mini SOIC (MM)

00975902

Bottom View

LM2936Z

See NS Package Number Z03A

00975928

Top View

LM2936MM

See NS Package Number MUA08A

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2

Ordering Information

Output

High Shutdown

Order

Package Type

Package Drawing

Transport Media

Voltage Voltage

-

Yes

LM2936BM-3.0

LM2936BMX-3.0

LM2936DT-3.0

8-Lead SOIC

TO-252

M08A

Rail

Tape/Reel

Rail

-

Yes

-

TD03B

M08A

-

LM2936DTX-3.0

LM2936HVBMA-3.0

LM2936HVBMAX3.0

LM2936M-3.0

TO-252

Tape/Reel

Rail

Yes

8-Lead SOIC

SOT-223

Yes

M08A

Tape/Reel

Rail

3.00V

-

M08A

-

LM2936MX-3.0

LM2936MP-3.0

LM2936MPX-3.0

LM2936MM-3.0

LM2936MMX-3.0

LM2936Z-3.0

M08A

Tape/Reel

Rail

-

MP04A

MUA08A

Z03A

-

SOT-223

-

8-Lead Mini SOIC

TO-92

-

Tape/Reel

Box

-

Yes

LM2936BM-3.3

LM2936BMX-3.3

LM2936DT-3.3

8-Lead SOIC

TO-252

M08A

Rail

-

Yes

M08A

Tape/Reel

Rail

-

TD03B

M08A

-

LM2936DTX-3.3

LM2936HVBMA-3.3

LM2936HVBMAX3.3

LM2936M-3.3

TO-252

Tape/Reel

Rail

Yes

8-Lead SOIC

SOT-223

Yes

M08A

Tape/Reel

Rail

3.30V

-

M08A

-

LM2936MX-3.3

LM2936MP-3.3

LM2936MPX-3.3

LM2936MM-3.3

LM2936MMX-3.3

LM2936Z-3.3

M08A

Tape/Reel

Rail

-

MP04A

MUA08A

Z03A

-

SOT-223

-

8-Lead Mini- SOIC

TO-92

-

Tape/Reel

Box

-

Yes

-

LM2936BM-5.0

LM2936BMX-5.0

LM2936DT-5.0

8-Lead SOIC

TO-252

M08A

Rail

-

M08A

Tape/Reel

Rail

-

TD03B

M08A

-

LM2936DTX-5.0

LM2936HVBMA-5.0

LM2936HVBMAX5.0

LM2936HVMA-5.0

LM2936HVMAX-5.0

LM2936M-5.0

TO-252

Tape/Reel

Rail

Yes

-

8-Lead SOIC

SOT-223

Yes

M08A

Tape/Reel

Rail

Yes

M08A

5.00V

Yes

-

M08A

Tape/Reel

Rail

-

M08A

-

LM2936MX-5.0

LM2936MP-5.0

LM2936MPX-5.0

LM2936MM-5.0

LM2936MMX-5.0

LM2936Z-5.0

M08A

Tape/Reel

Rail

MP04A

MUA08A

Z03A

SOT-223

8-Lead Mini-SOIC

TO-92

Tape/Reel

Box

3

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Absolute Maximum Ratings (Note 1)

Operating Ratings

Operating Temperature Range

Maximum Operating Input Voltage -

LM2936

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

−40˚C to +125˚C

+40V

Input Voltage (Survival)

+60V, −50V

2000V

Maximum Operating Input Voltage -

LM2936HV only

ESD Susceptibility (Note 2)

Power Dissipation (Note 3)

Junction Temperature (T_Jmax

Storage Temperature Range

+60V

Internally limited

150˚C

Maximum Shutdown Pin Voltage -

LM2936BM only

0V to 40V

)

−65˚C to +150˚C

Lead Temperature (Soldering, 10

sec.)

TO-92 (Z03A) θ_JA

195˚C/W

200˚C/W

140˚C/W

45˚C/W

136˚C/W

6˚C/W

260˚C

MSO-8 (MUA08A) θ_JA

SO-8 (M08A) θ_JA

SO-8 (M08A) θ_JC

TO-252 (TD03B) θ_JA

TO-252 (TD03B) θ_JC

SOT-223 (MP04A) θ_JA

SOT-223 (MP04A) θ_JC

149˚C/W

36˚C/W

Electrical Characteristics for LM2936–3.0

V_IN= 14V, I_O= 10 mA, T_J= 25˚C, unless otherwise specified. Boldface limits apply over entire operating temperature range

Min

(Note 5)

Typical

(Note 4)

Max

(Note 5)

Parameter

Conditions

Units

LM2936HV–3.0 Only

Output Voltage

5.5V ≤ V_IN≤ 48V,

100 µA ≤ I_O≤ 50 mA (Note 6)

2.910

3.000

3.090

V

Line Regulation

6V ≤ V_IN≤ 60V, I_O= 1mA

10

30

mV

All LM2936–3.0

2.940

3.000

3.060

Output Voltage

V

4.0V ≤ V_IN≤ 26V,

2.910

3.000

3.090

100 µA ≤ I_O≤ 50 mA (Note 6)

I_O= 100 µA, 8V ≤ V_IN≤ 24V

I_O= 10 mA, 8V ≤ V_IN≤ 24V

I_O= 50 mA, 8V ≤ V_IN≤ 24V

9V ≤ V_IN≤ 16V

Quiescent Current

15

0.20

1.5

5

20

0.50

2.5

10

µA

mA

mV

Line Regulation

Load Regulation

Dropout Voltage

6V ≤ V_IN≤ 40V, I_O= 1 mA

100 µA ≤ I_O≤ 5 mA

5 mA ≤ I_O≤ 50 mA

I_O= 100 µA

10

30

10

30

mV

10

30

0.05

0.20

120

450

0.10

0.40

250

V

I_O= 50 mA

Short Circuit Current

Output Impedance

V_O= 0V

65

mA

mΩ

I_O= 30 mAdc and 10 mArms,

= 1000 Hz

f

Output Noise Voltage

Long Term Stability

10 Hz–100 kHz

500

20

µV

mV/1000

Hr

Ripple Rejection

V_ripple= 1V_rms

,

= 120 Hz

−40

−50

−60

−80

dB

fripple

Reverse Polarity

R_L= 500Ω, T = 1 ms

V

Transient Input Voltage

Output Voltage with

Reverse Polarity Input

Maximum Line Transient

V_IN= −15V, R_L= 500Ω

0.00

−0.30

V

R_L= 500Ω, V_O≤ 3.30V, T = 40ms

60

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4

Electrical Characteristics for LM2936–3.0 (Continued)

V_IN= 14V, I_O= 10 mA, T_J= 25˚C, unless otherwise specified. Boldface limits apply over entire operating temperature range

Min

(Note 5)

Typical

(Note 4)

Max

(Note 5)

Parameter

Conditions

Units

Output Bypass

Capacitance (C_OUT) ESR

Shutdown Input − LM2936BM–3.0 Only

C_OUT= 22µF

0.3

8

Ω

0.1mA ≤ I_OUT≤ 50mA

Output Voltage, V_OUT

Shutdown High

Output Off, V_SD=2.4V, R_LOAD= 500Ω

0

0.010

V

Output Off, R_LOAD= 500Ω

2.00

1.1

Threshold Voltage, V_IH

Shutdown Low

Output On, R_LOAD= 500Ω

1.1

12

30

0.60

V

Threshold Voltage, V_IL

Shutdown High

Output Off, V_SD= 2.4V, R_LOAD= 500Ω

µA

Current, I_IH

Quiescent Current

Output Off, V_SD= 2.4V, R_LOAD= 500Ω

Includes I_IHCurrent

Electrical Characteristics for LM2936–3.3

V_IN= 14V, I_O= 10 mA, T_J= 25˚C, unless otherwise specified. Boldface limits apply over entire operating temperature range

Min

(Note 5)

Typical

(Note 4)

Max

(Note 5)

Parameter

Conditions

Units

LM2936HV–3.3 Only

Output Voltage

5.5V ≤ V_IN≤ 48V,

100 µA ≤ I_O≤ 50 mA (Note 6)

3.201

3.300

3.399

V

Line Regulation

6V ≤ V_IN≤ 60V, I_O= 1mA

10

30

mV

All LM2936–3.3

3.234

3.300

3.366

Output Voltage

V

4.0V ≤ V_IN≤ 26V,

3.201

3.300

3.399

100 µA ≤ I_O≤ 50 mA (Note 6)

I_O= 100 µA, 8V ≤ V_IN≤ 24V

I_O= 10 mA, 8V ≤ V_IN≤ 24V

I_O= 50 mA, 8V ≤ V_IN≤ 24V

9V ≤ V_IN≤ 16V

Quiescent Current

15

0.20

1.5

5

20

0.50

2.5

10

µA

mA

mV

Line Regulation

Load Regulation

Dropout Voltage

6V ≤ V_IN≤ 40V, I_O= 1 mA

100 µA ≤ I_O≤ 5 mA

5 mA ≤ I_O≤ 50 mA

I_O= 100 µA

10

30

10

30

mV

10

30

0.05

0.20

120

450

0.10

0.40

250

V

I_O= 50 mA

Short Circuit Current

Output Impedance

V_O= 0V

65

mA

mΩ

I_O= 30 mAdc and 10 mArms,

= 1000 Hz

f

Output Noise Voltage

Long Term Stability

10 Hz–100 kHz

500

20

µV

mV/1000

Hr

Ripple Rejection

V_ripple= 1V_rms

,

= 120 Hz

−40

−50

−60

−80

dB

fripple

Reverse Polarity

R_L= 500Ω, T = 1 ms

V

Transient Input Voltage

Output Voltage with

Reverse Polarity Input

Maximum Line Transient

V_IN= −15V, R_L= 500Ω

0.00

−0.30

V

R_L= 500Ω, V_O≤ 3.63V, T = 40ms

60

5

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Electrical Characteristics for LM2936–3.3 (Continued)

V_IN= 14V, I_O= 10 mA, T_J= 25˚C, unless otherwise specified. Boldface limits apply over entire operating temperature range

Min

(Note 5)

Typical

(Note 4)

Max

(Note 5)

Parameter

Conditions

Units

Output Bypass

Capacitance (C_OUT) ESR

Shutdown Input − LM2936BM–3.3 Only

C_OUT= 22µF

0.3

8

Ω

0.1mA ≤ I_OUT≤ 50mA

Output Voltage, V_OUT

Shutdown High

Output Off, V_SD=2.4V, R_LOAD= 500Ω

0

0.010

V

Output Off, R_LOAD= 500Ω

2.00

1.1

Threshold Voltage, V_IH

Shutdown Low

Output On, R_LOAD= 500Ω

1.1

12

30

0.60

V

Threshold Voltage, V_IL

Shutdown High

Output Off, V_SD= 2.4V, R_LOAD= 500Ω

µA

Current, I_IH

Quiescent Current

Output Off, V_SD= 2.4V, R_LOAD= 500Ω

Includes I_IHCurrent

Electrical Characteristics for LM2936–5.0

V_IN= 14V, I_O= 10 mA, T_J= 25˚C, unless otherwise specified. Boldface limits apply over entire operating temperature range

Min

(Note 5)

Typical

(Note 4)

Max

(Note 5)

Parameter

Conditions

Units

LM2936HV–5.0 Only

Output Voltage

5.5V ≤ V_IN≤ 48V,

100 µA ≤ I_O≤ 50 mA (Note 6)

4.85

5.00

5.15

V

Line Regulation

6V ≤ V_IN≤ 60V, I_O= 1mA

15

35

mV

All LM2936–5.0

4.90

5.00

5.10

Output Voltage

V

5.5V ≤ V_IN≤ 26V,

4.85

5.00

5.15

100 µA ≤ I_O≤ 50 mA (Note 6)

I_O= 100 µA, 8V ≤ V_IN≤ 24V

I_O= 10 mA, 8V ≤ V_IN≤ 24V

I_O= 50 mA, 8V ≤ V_IN≤ 24V

9V ≤ V_IN≤ 16V

Quiescent Current

9

15

0.50

2.5

10

µA

mA

mV

0.20

1.5

5

Line Regulation

Load Regulation

Dropout Voltage

6V ≤ V_IN≤ 40V, I_O= 1 mA

100 µA ≤ I_O≤ 5 mA

5 mA ≤ I_O≤ 50 mA

I_O= 100 µA

10

30

10

30

mV

10

30

0.05

0.20

120

450

0.10

0.40

250

V

I_O= 50 mA

Short Circuit Current

Output Impedance

V_O= 0V

65

mA

mΩ

I_O= 30 mAdc and 10 mArms,

= 1000 Hz

f

Output Noise Voltage

Long Term Stability

10 Hz–100 kHz

500

20

µV

mV/1000

Hr

Ripple Rejection

V_ripple= 1V_rms

,

= 120 Hz

−40

−50

−60

−80

dB

fripple

Reverse Polarity

R_L= 500Ω, T = 1 ms

V

Transient Input Voltage

Output Voltage with

Reverse Polarity Input

Maximum Line Transient

V_IN= −15V, R_L= 500Ω

0.00

−0.30

V

R_L= 500Ω, V_O≤ 5.5V, T = 40ms

60

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6

Electrical Characteristics for LM2936–5.0 (Continued)

V_IN= 14V, I_O= 10 mA, T_J= 25˚C, unless otherwise specified. Boldface limits apply over entire operating temperature range

Min

(Note 5)

Typical

(Note 4)

Max

(Note 5)

Parameter

Conditions

Units

Output Bypass

Capacitance (C_OUT) ESR

Shutdown Input − LM2936BM–5.0 Only

C_OUT= 10µF

0.3

8

Ω

0.1mA ≤ I_OUT≤ 50mA

Output Voltage, V_OUT

Shutdown High

Output Off, V_SD=2.4V, R_LOAD= 500Ω

0

0.010

V

Output Off, R_LOAD= 500Ω

2.00

1.1

Threshold Voltage, V_IH

Shutdown Low

Output On, R_LOAD= 500Ω

1.1

12

30

0.60

V

Threshold Voltage, V_IL

Shutdown High

Output Off, V_SD= 2.4V, R_LOAD= 500Ω

µA

Current, I_IH

Quiescent Current

Output Off, V_SD= 2.4V, R_LOAD= 500Ω

Includes I_IHCurrent

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating

the device beyond its specified operating ratings.

Note 2: Human body model, 100 pF discharge through a 1.5 kΩ resistor.

Note 3: The maximum power dissipation is a function of T

, θ , and T . The maximum allowable power dissipation at any ambient temperature is

JA A

Jmax

P

= (T

− T )/θ . If this dissipation is exceeded, the die temperature will rise above 150˚C and the LM2936 will go into thermal shutdown.

D

Jmax A JA

Note 4: Typicals are at 25˚C (unless otherwise specified) and represent the most likely parametric norm.

Note 5: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis.

Note 6: To ensure constant junction temperature, pulse testing is used.

Typical Performance Characteristics

Maximum Power

Dissipation (TO-92)

Dropout Voltage

00975907

00975908

7

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Typical Performance Characteristics (Continued)

Dropout Voltage

Quiescent Current

00975909

00975910

Quiescent Current

00975912

00975911

Quiescent Current

00975914

00975913

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8

Typical Performance Characteristics (Continued)

LM2936–5.0 C_OUTESR

LM2936–3.0 C_OUTESR

00975915

00975929

LM2936–3.3 C_OUTESR

Peak Output Current

00975916

00975930

Peak Output Current

LM2936–5.0 Current Limit

00975917

00975918

9

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Typical Performance Characteristics (Continued)

LM2936–5.0 Output at

Voltage Extremes

LM2936–5.0 Line Transient Response

00975919

00975920

LM2936–5.0 Ripple Rejection

LM2936–5.0 Load Transient Response

00975921

00975922

LM2936–5.0 Low Voltage Behavior

LM2936–5.0 Output Impedance

00975923

00975924

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10

On the SO-8 package the four ground pins are thermally

connected to the backside of the die. Adding approximately

0.04 square inches of 2 oz. copper pad area to these four

pins will improve the θ_JArating to approximately 110˚C/W. If

this extra pad are is placed directly beneath the package

there should not be any impact on board density.

Applications Information

Unlike other PNP low dropout regulators, the LM2936 re-

mains fully operational to 40V. Owing to power dissipation

characteristics of the available packages, full output current

cannot be guaranteed for all combinations of ambient tem-

perature and input voltage. As an example, consider an

LM2936Z–5.0 operating at 25˚C ambient. Using the formula

for maximum allowable power dissipation given in (Note 3) ,

we find that P_Dmax= 641 mW at 25˚C. Including the small

contribution of the quiescent current to total power dissipa-

tion the maximum input voltage (while still delivering 50 mA

output current) is 17.3V. The LM2936Z–5.0 will go into ther-

mal shutdown if it attempts to deliver full output current with

an input voltage of more than 17.3V. Similarly, at 40V input

and 25˚C ambient the LM2936Z–5.0 can deliver 18 mA

maximum.

On the TO-252 package the ground tab is thermally con-

nected to the backside of the die. Adding 1 square inch of 2

oz. copper pad area directly under the ground tab will im-

prove the θ_JArating to approximately 50˚C/W.

While the LM2936 has an internally set thermal shutdown

point of typically 160˚C, this is intended as a safety feature

only. Continuous operation near the thermal shutdown tem-

perature should be avoided as it may have a negative affect

on the life of the device.

While the LM2936 maintains regulation to 60V, it will not

withstand a short circuit above 40V because of safe operat-

ing area limitations in the internal PNP pass device. Above

60V the LM2936 will break down with catastrophic effects on

the regulator and possibly the load as well. Do not use this

device in a design where the input operating voltage may

exceed 40V, or where transients are likely to exceed 60V.

Under conditions of higher ambient temperatures, the volt-

age and current calculated in the previous examples will

drop. For instance, at the maximum ambient of 125˚C the

LM2936Z–5.0 can only dissipate 128 mW, limiting the input

voltage to 7.34V for a 50 mA load, or 3.5 mA output current

for a 40V input.

The junction to ambient thermal resistance θ_JArating has

two distinct components: the junction to case thermal resis-

tance rating θ_JC; and the case to ambient thermal resistance

SHUTDOWN PIN

The LM2936BM has a pin for shutting down the regulator

output. Applying a Logic Level High ( 2.0V) to the Shutdown

pin will cause the output to turn off. Leaving the Shutdown

pin open, connecting it to Ground, or applying a Logic Level

>

rating θ_CA. The relationship is defined as: θ_JA= θ_JC+ θ_CA

.

For the SO-8 and TO-252 surface mount packages the θ_JA

rating can be improved by using the copper mounting pads

on the printed circuit board as a thermal conductive path to

extract heat from the package.

<

Low ( 0.6V) will allow the regulator output to turn on.

11

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12

Physical Dimensions inches (millimeters) unless otherwise noted

8-Lead Small Outline Molded Package (M)

NS Package Number M08A

TO-252 Package (DT)

NS Package Number TD03B

13

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Physical Dimensions inches (millimeters) unless otherwise noted (Continued)

3-Lead TO-92 Plastic Package (Z)

NS Package Number Z03A

SOT-223 Package (MP)

NS Package Number MP04A

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14

Physical Dimensions inches (millimeters) unless otherwise noted (Continued)

8-Lead Mini SOIC package (MM)

NS Package Number MUA08A

National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves

the right at any time without notice to change said circuitry and specifications.

For the most current product information visit us at www.national.com.

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provided in the labeling, can be reasonably expected to result

in a significant injury to the user.

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expected to cause the failure of the life support device or

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型号：	LM2936MX-3.0/NOPB
厂家：	National Semiconductor
描述：	3V FIXED POSITIVE LDO REGULATOR, 0.4V DROPOUT, PDSO8, SOIC-8 光电二极管
文件：	总16页 (文件大小：885K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LM2936MX-3.0/NOPB [NSC]

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LM2936MX-5.0/NOPB

LM2936MX-5.0EP

LM2936Q

LM2936Q-Q1

LM2936QDT-3.0