MAX15006BASA+ - Maxim - Datasheet.Live

General Description

The MAX15006/MAX15007 ultra-low quiescent-current

linear regulators are ideal for use in automotive and bat-

tery-operated systems. These devices operate from an

input voltage of 4V to 40V, deliver up to 50mA of output

current, and consume only 10μA of quiescent current at

no load. The internal p-channel pass device keeps the

quiescent current low even at full load. The MAX15007

consumes only 3μA current when in shutdown.

The MAX15006A/MAX15007A have a fixed 3.3V output

while the MAX15006B/MAX15007B have a fixed 5V out-

put voltage. The MAX15006C/MAX15007C feature an

adjustable output from 1.8V to 10V. The MAX15007

includes an enable input to turn the device on or off. All

devices are short-circuit protected and include thermal

shutdown.

The MAX15006/MAX15007 operate over the -40°C to

+125°C automotive temperature range. These devices

are available in space-saving 3mm x 3mm 6-pin TDFN

and 8-pin SO thermally enhanced packages.

Applications

Automotive

Tire-Pressure Monitoring

Industrial

Telecom

Networking

Features

♦Wide Operating Input Voltage Range (4V to 40V)

♦Guaranteed 50mA Output Current

♦Low Quiescent Current

10µA (No Load) and 90µA (Full Load)

♦Operates Through Cold-Crank Condition

♦Withstands 45V Load Dump

♦Low Dropout Voltage of 300mV

(MAX15006B/MAX15007B)

♦Stable Operation with Tiny 2.2µF Output Capacitor

♦Enable Input (MAX15007)

♦Preset 3.3V and 5.0V Output Voltages

♦1.8V to 10V Adjustable Output (MAX15006C/

MAX15007C)

♦Thermal and Short-Circuit Protection

♦-40°C to +125°C Operating Temperature Range

♦Thermally Enhanced 3mm x 3mm 6-Pin TDFN/

8-Pin SO Packages

MAX15006/MAX15007

40V, Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

________________________________________________________________

Maxim Integrated Products

OUT GND

N.C.IN

OUT (FB)

MAX15006A

MAX15006B

MAX15006C

123

654

TDFN

TOP VIEW

N.C.

GND

N.C.

OUT

N.C. (FB)N.C.

N.C.

( ) FOR MAX15006C ONLY.

MAX15006A

MAX15006B

MAX15006C

Pin Configurations

19-0663; Rev 5; 11/11

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Pin Configurations continued at end of data sheet.

Ordering Information

Ordering Information continued at end of data sheet.

Denotes a lead(Pb)-free/RoHS-compliant package.

/V denotes an automotive qualified part.

EP = Exposed pad.

PART TEMP RANGE PIN-

PACKAGE

TOP

MARK

MAX15006AASA+ -40°C to +125°C 8 SO-EP* —

MAX15006AASA/V+ -40°C to +125°C 8 SO-EP* —

MAX15006AATT+ -40°C to +125°C 6 TDFN-EP* APE

MAX15006AATT/V+ -40°C to +125°C 6 TDFN-EP* AUR

MAX15006/MAX15007

40V, Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN = 14V, IOUT = 1mA, CIN = 0.1μF, COUT = 2.2μF, TA= TJ= -40°C to +125°C, unless otherwise noted. Typical specifications are at

TA= +25°C.) (Note 2)

Stresses beyond those listed under “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 for extended periods may affect device reliability.

Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-

layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.

IN to GND ...............................................................-0.3V to +45V

EN to GND..............................................................-0.3V to +45V

OUT, FB to GND.....................................................-0.3V to +12V

OUT Short-Circuit Duration ........................................Continuous

Maximum Current Into Any Pin (except IN and OUT) ......±50mA

Continuous Power Dissipation (TA= +70°C)

TDFN (derate 23.8mW/°C above +70°C) ........................1904mW

SO (derate 23.3mW/°C above +70°C)..........................1860mW

Operating Temperature Range .........................-40°C to +125°C

Junction Temperature......................................................+150°C

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

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

Soldering Temperature (reflow) .......................................+260°C

PACKAGE THERMAL CHARACTERISTICS (Note 1)

TDFN

Junction-to-Ambient Thermal Resistance (θJA) ...........42°C/W

Junction-to-Case Thermal Resistance (θJC) ...............8.5°C/W

Junction-to-Ambient Thermal Resistance (θJA) ...........43°C/W

Junction-to-Case Thermal Resistance (θJC) ..................7°C/W

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Input Voltage Range VIN 4 40 V

IOUT = 0A (MAX15006A/B) 10 17

IOUT = 0A (MAX15006C) 8 15

IOUT = 0A (MAX15007A/B) 11 18

IOUT = 0A (MAX15007C) 9 16

IOUT = 100μA

(MAX15006A/B) 10.5 18

IOUT = 100μA (MAX15006C) 8.5 16

IOUT = 100μA

(MAX15007A/B) 11.5 19

IOUT = 100μA (MAX15007C) 9.5 17

IOUT = 1mA (MAX15006A/B) 12 20

IOUT = 1mA (MAX15006C) 10 18

IOUT = 1mA (MAX15007A/B) 13 21

IOUT = 1mA (MAX15007C) 11 19

IOUT = 50mA (MAX15006) 90 150

Ground Current IGND Regulator on,

measured at GND

IOUT = 50mA (MAX15007) 93 150

μA

Shutdown Supply Current ISHDN Regulator off (MAX15007 only) 3 5 μA

MAX15006/MAX15007

40V, Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

_______________________________________________________________________________________ 3

Note 2: Limits at TA= -40°C are guaranteed by design.

Note 3: Output voltage regulation is guaranteed for IOUT ≥5μA.

Note 4: Dropout voltage is defined as (VIN - VOUT) when VOUT is 2% below the value of VOUT when VIN = VOUT + 3V.

Note 5: For VOUT = 3.3V, the 700mV dropout indicates VOUT does not reach 2% below VOUT at VIN = VOUT + 3V at minimum 4V

input voltage.

Note 6: Enable to regulation time is the time the output takes to reach 95% of its final value with VIN = 14V and EN is taken from VIL

to VIH in 5ns.

ELECTRICAL CHARACTERISTICS (continued)

(VIN = 14V, IOUT = 1mA, CIN = 0.1μF, COUT = 2.2μF, TA= TJ= -40°C to +125°C, unless otherwise noted. Typical specifications are at

TA= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

REGULATOR

Guaranteed Output Current IOUT V

IN  VOUT + VDO 50 mA

MAX15006A/MAX15007A 3.25 3.3 3.35

MAX15006B/MAX15007B 4.925 5.0 5.075

Output Voltage (Note 3) VOUT I

OUT = 1mA

MAX15006C/MAX15007C 1.8 10

IOUT = 5mA, MAX15006B/MAX15007B 30 53

IOUT = 5mA, MAX15006C/MAX15007C 30 60

IOUT = 50mA, MAX15006B/MAX15007B 300 525

IOUT = 50mA, MAX15006C/MAX15007C 300 600

Dropout Voltage (Notes 4, 5) VDO

IOUT = 50mA, MAX15006A/MAX15007A 1000

Line Regulation 6V  VIN  35V, IOUT = 1mA 0.25 %

Load Regulation VIN = VOUT + 3V, IOUT = 100μA to 50mA 0.7 1.5 %

Output Current Limit 80 350 mA

VOUT = 3.3V 115

Output Voltage Noise 100Hz to 100kHz, IOUT =

50mA, COUT = 2.2μF VOUT = 5V 179 μVRMS

Power-Supply Rejection

Ratio PSRR f = 100Hz, VIN_RIPPLE = 500mVP-P, IOUT = 50mA 66 dB

FB Threshold Voltage VFB ILOAD = 1mA (MAX15006C/MAX15007C only) 1.2 1.23 1.26 V

FB Input Current IFB V

FB = 0V, 1.5V (MAX15006C/MAX15007C only) -100 +100 nA

ENABLE LOGIC

VIL 0.4

Enable Threshold Voltage VIH 1.4 V

Enable Threshold Hysteresis 60 mV

Enable Pulldown Current Internally pulled down to GND 0.5 μA

Enable to Regulation Time (Note 6) 0.4 2 ms

THERMAL SHUTDOWN

Thermal Shutdown TSHDN Junction temperature rising +165 °C

Thermal Shutdown

Hysteresis THYST 20 °C

MAX15006/MAX15007

40V, Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

4 _______________________________________________________________________________________

Typical Operating Characteristics

(VIN = 14V, CIN = 0.1μF, COUT = 2.2μF, VEN = VIN, TA= +25°C, unless otherwise noted.)

OUTPUT VOLTAGE vs. INPUT VOLTAGE

(MAX15006A/MAX15007A)

MAX15006 toc01

VIN (V)

VOUT (V)

353020 2510 155

0.3

0.6

0.9

1.2

1.5

1.8

2.1

2.4

2.7

3.3

3.0

3.6

040

IOUT = 0

OUTPUT VOLTAGE vs. INPUT VOLTAGE

(MAX15006B/MAX15007B)

MAX15006 toc02

VIN (V)

VOUT (V)

353020 2510 155

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

040

IOUT = 0

OUTPUT VOLTAGE vs. TEMPERATURE

(MAX15006A/MAX15007A)

MAX15006 toc03

TEMPERATURE (°C)

VOUT (V)

12510050 750 25-25

3.18

3.21

3.24

3.27

3.30

3.33

3.36

3.39

3.42

3.45

3.15

-50 150

IOUT = 50mA

IOUT = 1mA

OUTPUT VOLTAGE vs. TEMPERATURE

(MAX15006B/MAX15007B)

MAX15006 toc04

TEMPERATURE (°C)

VOUT (V)

12510050 750 25-25

4.80

4.85

4.90

4.95

5.00

5.05

5.10

5.15

5.20

5.25

4.75

-50 150

IOUT = 50mA

IOUT = 1mA

DROPOUT VOLTAGE vs. LOAD CURRENT

(MAX15006B/MAX15007B)

MAX15006 toc05

IOUT (mA)

VDROPOUT (mV)

3530 454020 2510 155

100

150

200

250

300

350

400

450

500

050

TA = +125°C

TA = +25°C

TA = -40°C

GROUND CURRENT vs. LOAD CURRENT

(MAX15006B/MAX15007B)

MAX15006 toc06

IOUT (mA)

IGND (μA)

3530 454020 2510 155

100

050

TA = +125°C

TA = +25°C

TA = -40°C

GROUND CURRENT vs. TEMPERATURE

(IOUT = 0)

MAX15006 toc07

TEMPERATURE (°C)

IGND (μA)

12510050 75025-25

-50 150

VIN = +6V

VIN = +14V

VIN = +40V

GROUND CURRENT vs. TEMPERATURE

(IOUT = 50mA)

MAX15006 toc08

TEMPERATURE (°C)

IGND (μA)

12510050 75025-25

100

-50 150

SHUTDOWN SUPPLY CURRENT

vs. TEMPERATURE

MAX15006 toc09

TEMPERATURE (°C)

ISHDN (μA)

12510050 75025-25

-50 150

VIN = +40V

VIN = +14V

VIN = +6V

MAX15006/MAX15007

40V, Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

_______________________________________________________________________________________ 5

GROUND CURRENT DISTRIBUTION

(TA = -40°C)

MAX15006 toc10

IGND (μA)

NUMBER OF UNITS

10.910.8

10.7

10.6

10.5

10.4 11.0

MAX15007, IOUT = 0

50 UNITS TESTED

GROUND CURRENT DISTRIBUTION

(TA = +25°C)

MAX15006 toc11

IGND (μA)

NUMBER OF UNITS

11.311.2

11.1

11.0

10.9

10.8 11.4

MAX15007, IOUT = 0

50 UNITS TESTED

GROUND CURRENT DISTRIBUTION

(TA = +125°C)

MAX15006 toc12

IGND (μA)

NUMBER OF UNITS

12.0

11.9

11.8

11.7

11.6 12.1

MAX15007, IOUT = 0

50 UNITS TESTED

LOAD-TRANSIENT RESPONSE

(MAX15006B/MAX15007B)

MAX15006 toc13

400

s/div

VOUT

AC-COUPLED

200mV/div

50mA

IOUT

1mA

INPUT-VOLTAGE STEP RESPONSE

(MAX15006B/MAX15007B, IOUT = 1mA)

MAX15006 toc14

400

s/div

18V

VIN

14V

VOUT

AC-COUPLED

100mV/div

STARTUP RESPONSE

MAX15006 toc15

200

s/div

VIN

5V/div

VOUT

2V/div

MAX15006B/MAX15007B

IOUT = 1mA

ENABLE STARTUP RESPONSE

MAX15006 toc16

400

s/div

1V/div

VOUT

2V/div

MAX15006B/MAX15007B

IOUT = 0

ENABLE STARTUP RESPONSE

MAX15006 toc17

400

s/div

1V/div

VOUT

2V/div

MAX15006B/MAX15007B

IOUT = 50mA

ENABLE STARTUP RESPONSE

MAX15006 toc18

400

s/div

1V/div

VOUT

2V/div

MAX15006B/MAX15007B

VIN = 40V, IOUT = 0

Typical Operating Characteristics (continued)

(VIN = 14V, CIN = 0.1μF, COUT = 2.2μF, VEN = VIN, TA= +25°C, unless otherwise noted.)

MAX15006/MAX15007

40V, Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

6 _______________________________________________________________________________________

ENABLE STARTUP RESPONSE

MAX15006 toc19

400

s/div

1V/div

VOUT

2V/div

MAX15006B/MAX15007B

VIN = 40V, IOUT = 50mA

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY

MAX15006 toc20

FREQUENCY (kHz)

PSRR (dB)

1001100.1

-90

-80

-70

-60

-50

-40

-30

-20

-10

-100

0.01 1000

IOUT = 50mA

COUT = 2.2μF

COUT = 10μF

OUTPUT-NOISE SPECTRAL DENSITY

vs. FREQUENCY

MAX15006 toc21

FREQUENCY (kHz)

OUTPUT-NOISE SPECTRAL DENSITY (μV/√Hz)

1100.1

0.1

0.01

0.01 100

MAX15006A/MAX15007A

IOUT = 50mA

OUTPUT-NOISE SPECTRAL DENSITY

vs. FREQUENCY

MAX15006 toc22

FREQUENCY (kHz)

1100.1

0.1

0.01

0.01 100

MAX15006B/MAX15007B

IOUT = 50mA

OUTPUT-NOISE SPECTRAL DENSITY (μV/√Hz)

OUTPUT VOLTAGE NOISE

vs. LOAD CURRENT

MAX15006 toc23

IOUT (mA)

en (μVRMS)

403525 301510 205

105

120

135

150

05045

MAX15006A/MAX15007A

FB VOLTAGE vs. INPUT VOLTAGE

(MAX15007C, VOUT = 5V)

MAX15006 toc24

VIN (V)

VFB (V)

353025201510

1.226

1.227

1.228

1.229

1.230

1.225

540

FB VOLTAGE vs. TEMPERATURE

(MAX15007C, VOUT = 5V)

MAX15006 toc25

TEMPERATURE (°C)

VFB (V)

12510050 750 25-25

1.221

1.222

1.223

1.224

1.225

1.226

1.227

1.228

1.229

1.230

1.220

-50 150

Typical Operating Characteristics (continued)

(VIN = 14V, CIN = 0.1μF, COUT = 2.2μF, VEN = VIN, TA= +25°C, unless otherwise noted.)

MAX15006/MAX15007

40V, Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

_______________________________________________________________________________________ 7

OUTPUT VOLTAGE NOISE

vs. OUTPUT CAPACITANCE

MAX15006 toc26

COUT (μF)

en (μVRMS)

1412810462

105

120

135

150

0221816 20

MAX15006A/MAX15007A

IOUT = 25mA

CLAMPED LOAD DUMP

(IOUT = 0)

MAX15006 toc27

100ms/div

40V

VIN

13.5V

VOUT

AC-COUPLED

20mV/div

Typical Operating Characteristics (continued)

(VIN = 14V, CIN = 0.1μF, COUT = 2.2μF, VEN = VIN, TA= +25°C, unless otherwise noted.)

Pin Description

MAX15006A/B MAX15006C MAX15007A/B MAX15007C

TDFN SO TDFN SO TDFN SO TDFN SO

NAME FUNCTION

1, 2 1 1, 2 1 1, 2 1 1, 2 1 IN

Regulator Supply Input. Supply voltage ranges

from 4V to 40V. Bypass with a 0.1μF capacitor to

GND.

32, 3,

4, 6, 7 32, 3, 4,

6—2, 4, 6,

7— 2, 4, 6 N.C. No Connection. Not internally connected.

45454545GNDGround

5, 6 8 6 8 5, 6 8 6 8 OUT Regulator Output. Bypass OUT to GND with a

low-ESR capacitor with a minimum 2.2μF.

——57——57FB

Feedback Regulation Set-Point. Connect an

external resistive divider network from OUT to FB

to GND to adjust the output voltage from 1.8V to

10V.

———— 3 3 3 3 EN

Active-High Enable Input. Force EN high (or

connect to VIN) to turn the regulator on. Pull EN

low (or leave unconnected) to place the device

in a low-power shutdown mode. EN is internally

pulled down to GND through a 0.5μA sink

current.

————————EP

Exposed Pad. Internally connected to GND.

Connect EP to the ground plane for enhanced

thermal performance. Do not use EP as a

ground connection.

MAX15006/MAX15007

40V, Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

8 _______________________________________________________________________________________8 _______________________________________________________________________________________

MAX15006

FET DRIVER

WITH

CURRENT LIMIT

THERMAL

SENSOR

1.242V

REF

ERROR

AMPLIFIER

OUT

(FOR MAX15006C ONLY)

(FOR MAX15006A/B ONLY)

GND

Figure 1. MAX15006 Simplified Functional Diagram

Functional Diagrams

MAX15007

FET DRIVER

WITH

CURRENT LIMIT

THERMAL

SENSOR

CONTROL

LOGIC

1.242V

REF

ERROR

AMPLIFIER

OUT

GND

(FOR MAX15007C ONLY)

(FOR MAX150076A/B ONLY)

Figure 2. MAX15007 Simplified Functional Diagram

MAX15006/MAX15007

40V, Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

_______________________________________________________________________________________ 9

Detailed Description

The MAX15006/MAX15007 high-voltage linear regulators

operate over a 4V to 40V input voltage range. These

devices guarantee 50mA load drive, and offer preset

output voltages of +3.3V (MAX15006A/MAX15007A) or

+5V (MAX15006B/MAX15007B) or an adjustable voltage

output from 1.8V to 10V (MAX15006C/MAX15007C).

Thermal shutdown and short-circuit protection prevent

damage during overtemperature and overcurrent condi-

tions. The MAX15007 includes an enable input (EN)

allowing the regulators to be turned on/off using a logic-

level voltage. Driving EN high turns on the device while

driving EN low places the device in a low-power shut-

down mode. In shutdown, the supply current is reduced

to 3μA (typ). The MAX15006/MAX15007 operate over the

-40°C to +125°C automotive temperature range. All

devices are available in thermally enhanced 6-pin TDFN

and 8-pin SO packages capable of dissipating 1.904W

and 1.860W at TA= +70°C, respectively.

Regulator

The regulator accepts an input voltage from 4V to 40V.

The MAX15006A/MAX15007A have a fixed 3.3V output

voltage while the MAX15006B/MAX15007B offer a fixed

5V output voltage. The MAX15006C/MAX15007C fea-

ture an adjustable voltage output by connecting an

external resistive divider from OUT to FB and to GND

(see the

Output Voltage Setting

section).

EN Input (MAX15007 Only)

EN is an active-high, logic-level enable input that turns

the device on or off. Drive EN high to turn the device

on. An internal 0.5μA pulldown current keeps the

MAX15007 in shutdown mode when driven by a three-

state driver in high-impedance mode, or an open-drain

driver. While in shutdown, the device consumes only

3μA (typ). EN withstands voltages up to 40V, allowing it

to be driven by high input level voltages or connected

to IN for always-on operation.

Thermal Protection

When the junction temperature exceeds +165°C, an

internal thermal sensor turns the pass transistor off, and

allows the device to cool. The thermal sensor turns the

pass transistor on again after the junction temperature

cools by 20°C. This results in a cycled output during

continuous thermal-overload conditions. Thermal pro-

tection protects the MAX15006/MAX15007 in the event

of fault conditions. Operation at TJ= +150°C without

going into thermal shutdown is not guaranteed. Use

Figures 3a and 3b to determine the minimum guaran-

teed output current.

Output Short-Circuit Current Limit

The MAX15006/MAX15007 feature a 175mA current

limit. The output can be shorted to GND for an indefinite

period of time without damage to the device. During a

short circuit, the power dissipated across the pass tran-

sistor can quickly heat the device. When the die tem-

perature reaches +165°C, the MAX15006/

MAX15007 shut down and automatically restart after

the die temperature cools by 20°C.

_______________________________________________________________________________________ 9

MAX15006 fig03a

AMBIENT TEMPERATURE (°C)

OUTPUT CURRENT (mA)

125120110 11590 95 100 10585

80 130

VIN = 26V, VOUT = 5V

VIN = 18V, VOUT = 5V

VIN = 18V,

VOUT = 3.3V

VIN = 26V, VOUT = 3.3V

Figure 3a. Minimum Output Current vs. Ambient Temperature

(6-Pin TDFN-EP)

MAX15006 fig03b

AMBIENT TEMPERATURE (°C)

OUTPUT CURRENT (mA)

125120110 11590 95 100 10585

80 130

VIN = 26V, VOUT = 5V

VIN = 18V, VOUT = 5V

VIN = 18V,

VOUT = 3.3V

VIN = 26V, VOUT = 3.3V

Figure 3b. Minimum Output Current vs. Ambient Temperature

(8-Pin SO-EP)

MAX15006/MAX15007

40V, Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

10 ______________________________________________________________________________________

Applications Information

Output Voltage Setting

The MAX15006C/MAX15007C provide an adjustable

output voltage from 1.8V to 10V and do not operate in a

preset output voltage mode. Connect an external resis-

tive divider from OUT to FB to GND as shown in Figure

4 to set the desired output voltage. VOUT is calculated

as follows:

where VFB = 1.23V and a 5μA minimum current is

required in the external divider for stability.

Available Output Current Calculation

The MAX15006/MAX15007 provide up to 50mA of contin-

uous output current. The input voltage range extends to

40V. Package power dissipation limits the amount of out-

put current available for a given input/output voltage and

ambient temperature. Figure 5 shows the maximum

allowable power dissipation for these devices to keep the

junction temperature below +150°C. Figure 5 assumes

that the exposed metal pad of the MAX15006/MAX15007

is soldered to 1in2of PCB copper.

Use Figure 5 to determine the allowable package dissi-

pation for a given ambient temperature. Alternately, use

the following formulas to calculate the allowable pack-

age dissipation. For the TDFN package:

For the SO-EP package:

After determining the allowable package dissipation,

calculate the maximum allowable output current, with-

out exceeding the +150°C junction temperature, using

the following formula:

The above equations do not include the negligible

power dissipation from self-heating due to the IC

ground current.

Example 1 (TDFN Package):

TA= +125°C

VIN = 26V

VOUT = 3.3V

Calculate the maximum allowable package dissipation

at the given temperature as follows:

And establish the maximum output current:

I595.8mW

26V 3.3V 26.2mA

OUT(MAX) =−=

P 1.9048W 0.0238 W

C125 C 70 C 5

D=−

°°−°

()

=995.8mW

VV 50mA

OUT(MAX) D

IN OUT

=−≤

≤+ °

−

1 8605 70

1 8605 0 0233

WforT C

CxT Cfor C T C

°°

()

+°< ≤+ °

⎧

⎨

⎪

– 70 70 125

⎩⎩

⎪

⎫

⎬

⎪

⎭

⎪

≤+ °

−

1 9048 70

1 9048 0 0238

WforT C

CxT Cfor C T C

°°

()

+°< ≤+ °

⎧

⎨

⎪

– 70 70 125

⎩⎩

⎪

⎫

⎬

⎪

⎭

⎪

VV1

OUT FB

=×+

⎛

⎝

⎜⎞

⎠

⎟

MAX15006 fig04

TEMPERATURE (°C)

PD (W)

140

120

100

40 60 80

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

2.4

1.9408W

(6-PIN TDFN)

1.8605W

(8-PIN SO-EP)

DERATE

23.8mW/°C

DERATE

23.3mW/°C

Figure 5. Calculated Maximum Power Dissipation vs. Ambient

Temperature

2.2μF0.1μF

OFF

+1.8V TO +10V

VOUT = VFB (1 + R1/R2)

VFB = 1.23V

+4V TO +40V

GND

OUT

MAX15007C

Figure 4. Setting the Adjustable Output Voltage

MAX15006/MAX15007

40V, Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

______________________________________________________________________________________ 11

Example 2 (TDFN Package):

TA= +85°C

VIN = 14V

VOUT = 5V

Calculate the maximum allowable package dissipation

at the given temperature as follows:

Then determine the maximum output current:

Example 3 (TDFN Package):

TA= +50°C

VIN = 9V

VOUT = 5V

Calculate the maximum allowable package dissipation

at the given temperature as follows:

PD= 1.9048W

Find the maximum output current:

In Examples 2 and 3, the maximum output current is

calculated as 172mA and 476mA, respectively; howev-

er, the allowable output current cannot exceed 50mA.

Alternately, use Figures 6a and 6b to quickly determine

the maximum allowable output current for selected

ambient temperatures and input voltages.

Output-Capacitor Selection

and Regulator Stability

For stable operation over the full temperature range

and with load currents up to 50mA, use a low-ESR

2.2μF (min) ceramic or tantalum output capacitor. Use

larger output-capacitor values such as 22μF to reduce

noise, improve load-transient response, and power-

supply rejection.

Some ceramic dielectrics exhibit large capacitance and

ESR variations with temperature. Ensure the minimum

capacitance under worst-case conditions does not

drop below 1.3μF to ensure output stability. With an

X7R dielectric, 2.2μF should be sufficient at all operat-

ing temperatures.

I1.9048W

9V 5V 476mA

OUT(MAX) (

=−=⇒IOUT MAX))=50mA

I1.5478W

14V 5V 172mA

OUT(MAX) (

=−=⇒IOUT MAXXmA

)=50

P 1.9048W 0.0238 W

C85 C 70 C 1.

D=−

°°−°

()

=55478W

MAX15006 fig05a

VIN (V)

IOUT(MAX) (mA)

353020 2510 155

040

TA = +85°C

TA = +70°C

TA = +125°C

VOUT = 5V

6-PIN TDFN

Figure 6a. Calculated Maximum Output Current vs. Input

Voltage (6-Pin TDFN-EP)

MAX15006 fig05b

VIN (V)

IOUT(MAX) (mA)

353020 2510 155

040

TA = +85°C

TA = +70°C

TA = +125°C

VOUT = 5V

8-PIN SO-EP

Figure 6b. Calculated Maximum Output Current vs. Input

Voltage (8-Pin SO-EP)

MAX15006/MAX15007

40V, Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

12 ______________________________________________________________________________________

TOP VIEW

OUT GND

ENIN

OUT (FB)

MAX15007A

MAX15007B

MAX15007C

123

654

TDFN

N.C.

GND

EP N.C.

( ) FOR MAX15007C ONLY.

OUT

N.C. (FB)N.C.

MAX15007A

MAX15007B

MAX15007C

Pin Configurations (continued)

PART

ENABLE INPUT

FIXED OUTPUT

VOLTAGE (V)

ADJUSTABLE OUTPUT

VOLTAGE (V) PIN-PACKAGE

MAX15006AASA+ — 3.3 — 8 SO-EP

MAX15006AATT+ — 3.3 — 6 TDFN-EP

MAX15006BASA+ — 5 — 8 SO-EP

MAX15006BATT+ — 5 — 6 TDFN-EP

MAX15006CASA+ — — ADJ (1.8 to 10) 8 SO-EP

MAX15006CATT+ — — ADJ (1.8 to 10) 6 TDFN-EP

MAX15007AASA+ √3.3 — 8 SO-EP

MAX15007AATT+ √3.3 — 6 TDFN-EP

MAX15007BASA+ √5 — 8 SO-EP

MAX15007BATT+ √5 — 6 TDFN-EP

MAX15007CASA+ √— ADJ (1.8 to 10) 8 SO-EP

MAX15007CATT+ √— ADJ (1.8 to 10) 6 TDFN-EP

Selector Guide

MAX15006/MAX15007

40V, Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

______________________________________________________________________________________ 13

Ordering Information (continued)

Denotes a lead(Pb)-free/RoHS-compliant package.

/V denotes an automotive qualified part.

EP = Exposed pad.

PART TEMP RANGE PIN-

PACKAGE

TOP

MARK

MAX15006BASA+ -40°C to +125°C 8 SO-EP* —

MAX15006BASA/V+ -40°C to +125°C 8 SO-EP* —

MAX15006BATT+ -40°C to +125°C 6 TDFN-EP* APF

MAX15006BATT/V+ -40°C to +125°C 6 TDFN-EP* AUN

MAX15006CATT+ -40°C to +125°C 6 TDFN-EP* API

MAX15006CATT/V+ -40°C to +125°C 6 TDFN-EP* AVA

MAX15007AASA+ -40°C to +125°C 8 SO-EP* —

MAX15007AATT+ -40°C to +125°C 6 TDFN-EP* APG

MAX15007BASA+ -40°C to +125°C 8 SO-EP* —

MAX15007BATT+ -40°C to +125°C 6 TDFN-EP* APH

MAX15007CATT+ -40°C to +125°C 6 TDFN-EP* APJ

MAX15007CATT/V+ -40°C to +125°C 6 TDFN-EP* AUU

Chip Information

PROCESS: BiCMOS

Package Information

For the latest package outline information and land patterns

(footprints), go to www.maxim-ic.com/packages. Note that a

“+”, “#”, or “-” in the package code indicates RoHS status only.

Package drawings may show a different suffix character, but

the drawing pertains to the package regardless of RoHS status.

PACKAGE

TYPE

PACKAGE

CODE

OUTLINE

NO.

LAND

PATTERN NO.

6 TDFN-EP T633+2 21-0137 90-0058

8 SO-EP S8E+12 21-0111 90-0150

MAX15006/MAX15007

40V, Ultra-Low Quiescent-Current

Linear Regulators in 6-Pin TDFN/8-Pin SO

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are

implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

Revision History

REVISION

NUMBER

REVISION

DATE DESCRIPTION PAGES

CHANGED

0 10/06 Initial release —

1 5/08

Added MAX15006C/MAX15007C adjustable version to data sheet including Ordering

Information,Electrical Characteristics,Pin Description, and Detailed Description 1–14

2 11/09 Added the MAX15006A/MAX15006B automotive packages to the Ordering Information 1, 13

3 12/10

Added the MAX15006CATT and MAX15007CATT automotive packages to the

Ordering Information 13

4 7/11

Added the MAX15006AASA and MAX15006BASA automotive packages to the

Ordering Information 1, 13

5 11/11

Changed the maximum IOUT = 50mA dropout of the MAX15006A/MAX15007A from

700mV to 1000mV 3