MAXIM MAX15006AATT+

19-0663; Rev 0; 10/06
40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
The MAX15006/MAX15007 ultra-low quiescent-current
linear regulators are ideal for use in automotive and
battery-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 output voltage. 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.
Features
o Wide Operating Input Voltage Range (4V to 40V)
o Guaranteed 50mA Output Current
o Low Quiescent Current
10µA (No Load) and 90µA (Full Load)
o Operates Through Cold-Crank Condition
o Withstands 45V Load Dump
o Low Dropout Voltage of 300mV
(MAX15006B/MAX15007B)
o Stable Operation with Tiny 2.2µF Output
Capacitor
o Enable Input (MAX15007)
o Preset 3.3V and 5.0V Output Voltages
o Thermal and Short-Circuit Protection
o -40°C to +125°C Operating Temperature Range
o Thermally Enhanced 3mm x 3mm 6-Pin TDFN/
8-Pin SO Packages
Ordering Information
Applications
PINPACKAGE
PART
Automotive
Tire-Pressure Monitoring
Industrial
Telecom
Networking
MAX15006AASA+
8 SO-EP*
MAX15006AATT+
6 TDFN-EP*
MAX15006BASA+
8 SO-EP*
MAX15006BATT+
6 TDFN-EP*
TOP
MARK
PKG
CODE
—
S8E-12
APE
T633-2
—
S8E-12
APF
T633-2
Ordering Information continued at end of data sheet.
Note: All devices are specified over the -40°C to +125°C operating temperature range.
+Denotes lead-free package.
*EP = Exposed pad.
Pin Configurations
TOP VIEW
OUT
OUT
GND
6
5
4
MAX15006A
MAX15006B
*EP
+
1
2
3
IN
IN
N.C.
TDFN
MAX15006A
MAX15006B
IN
1
N.C.
N.C.
+
8
OUT
2
7
N.C.
3
6
N.C.
5
GND
N.C. 4
*EP
SO
*EXPOSED PAD
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
MAX15006/MAX15007
General Description
MAX15006/MAX15007
40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
ABSOLUTE MAXIMUM RATINGS
IN to GND ...............................................................-0.3V to +45V
EN to GND..............................................................-0.3V to +45V
OUT 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)
6-Pin TDFN-EP (derate 23.8mW/°C above +70°C) .......1904mW*
8-Pin SO-EP (derate 23.3mW/°C above +70°C) .........1860mW*
Thermal Resistance
θJA, 6-Pin TDFN ...........................................................42°C/W
θJC, 6-Pin TDFN ..........................................................8.5°C/W
θJA, 8-Pin SO-EP ..........................................................43°C/W
θJC, 8-Pin SO-EP ............................................................7°C/W
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
*As per JEDEC51 Standard (Multilayer Board).
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.
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 1)
PARAMETER
Input Voltage Range
Ground Current
Shutdown Supply Current
SYMBOL
CONDITIONS
VIN
IGND
ISHDN
MIN
TYP
4
Regulator on,
measured at GND
MAX
UNITS
40
V
IOUT = 0 (MAX15006)
10
IOUT = 0 (MAX15007)
11
17
18
IOUT = 100µA (MAX15006)
10.5
18
IOUT = 100µA (MAX15007)
11.5
19
IOUT = 1mA (MAX15006)
12
20
IOUT = 1mA (MAX15007)
13
21
IOUT = 50mA (MAX15006)
90
150
IOUT = 50mA (MAX15007)
93
150
3
5
Regulator off (MAX15007 only)
µA
µA
REGULATOR
Guaranteed Output Current
IOUT
Output Voltage
VOUT
Dropout Voltage (Notes 3, 4)
ΔVDO
VIN ≥ VOUT + ΔVDO
IOUT = 1mA (Note 2)
50
mA
MAX15006A/MAX15007A
3.25
3.3
3.35
MAX15006B/MAX15007B
4.925
5.0
5.075
IOUT = 5mA, MAX15006B/MAX15007B
30
53
IOUT = 50mA, MAX15006B/MAX15007B
300
525
V
mV
IOUT = 50mA, MAX15006A/MAX15007A
700
Line Regulation
6V ≤ VIN ≤ 35V, IOUT = 1mA
0.25
%
Load Regulation
VIN = VOUT + 3V, IOUT = 100µA to 50mA
1.5
%
2
0.7
_______________________________________________________________________________________
40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
(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 1)
PARAMETER
SYMBOL
CONDITIONS
Output Current Limit
TYP
80
Output Voltage Noise
Power-Supply Rejection Ratio
MIN
PSRR
100Hz to 100kHz, IOUT VOUT = 3.3V
= 50mA, COUT = 2.2µF VOUT = 5V
f = 100Hz, VIN_RIPPLE = 500mVP-P, IOUT = 50mA
MAX
UNITS
350
mA
115
µVRMS
179
66
dB
ENABLE LOGIC
Enable Threshold Voltage
VIL
0.4
1.4
VIH
Enable Threshold Hysteresis
60
Enable Pulldown Current
Internally pulled down to GND
0.5
Enable to Regulation Time
(Note 5)
0.4
V
mV
µA
2
ms
THERMAL SHUTDOWN
Thermal Shutdown
TSHDN
Thermal Shutdown Hysteresis
THYST
Junction temperature rising
+165
°C
20
°C
Limits at -40°C are guaranteed by design.
Output voltage regulation is guaranteed for IOUT ≥ 5µA.
Dropout voltage is defined as (VIN - VOUT) when VOUT is 2% below the value of VOUT when VIN = VOUT + 3V.
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 5: 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.
Note 1:
Note 2:
Note 3:
Note 4:
_______________________________________________________________________________________
3
MAX15006/MAX15007
ELECTRICAL CHARACTERISTICS (continued)
Typical Operating Characteristics
(VIN = 14V, CIN = 0.1µF, COUT = 2.2µF, VEN = VIN, TA = +25°C, unless otherwise noted.)
OUTPUT VOLTAGE vs. INPUT VOLTAGE
(MAX15006B/MAX15007B)
4.5
3.42
3.39
4.0
2.4
2.1
VOUT (V)
1.8
1.5
1.2
0.9
0.6
0.3
0
3.0
2.5
10
15
20
25
30
35
3.30
1.5
3.24
1.0
3.21
0.5
40
IOUT = 50mA
3.18
IOUT = 0
0
5
3.33
3.27
2.0
IOUT = 0
IOUT = 1mA
3.36
3.5
0
3.15
0
5
10
15
20
25
30
35
40
-50
-25
0
25
50
75
100 125 150
VIN (V)
VIN (V)
TEMPERATURE (°C)
OUTPUT VOLTAGE vs. TEMPERATURE
(MAX15006B/MAX15007B)
DROPOUT VOLTAGE vs. LOAD CURRENT
(MAX15006B/MAX15007B)
GROUND CURRENT vs. LOAD CURRENT
(MAX15006B/MAX15007B)
IOUT = 1mA
350
VDROPOUT (mV)
5.10
5.05
5.00
4.95
4.90
TA = +125°C
400
100
90
80
300
TA = -40°C
200
60
40
30
100
20
4.80
50
10
4.75
0
IOUT = 50mA
-50
-25
0
25
50
100 125 150
75
TA = +25°C
50
150
4.85
TA = +125°C
70
TA = +25°C
250
MAX15006 toc06
5.15
450
IGND (μA)
5.20
MAX15006 toc05
500
MAX15006 toc04
5.25
TA = -40°C
0
0
5
10 15 20 25 30 35 40 45 50
0
10 15 20 25 30 35 40 45 50
5
TEMPERATURE (°C)
IOUT (mA)
IOUT (mA)
GROUND CURRENT vs. TEMPERATURE
(IOUT = 0)
GROUND CURRENT vs. TEMPERATURE
(IOUT = 50mA)
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
14
99
98
9
8
97
VIN = +40V
8
VIN = +14V
6
VIN = +6V
96
95
94
5
3
92
2
2
91
1
0
90
0
25
50
75
TEMPERATURE (°C)
100 125 150
VIN = +6V
4
93
-25
VIN = +14V
6
4
-50
VIN = +40V
7
ISHDN (μA)
10
IGND (μA)
12
MAX15006 toc09
16
10
MAX15006 toc08
100
MAX15006 toc07
18
4
3.45
MAX15006 toc02
5.0
VOUT (V)
VOUT (V)
3.0
2.7
VOUT (V)
5.5
MAX15006 toc01
3.6
3.3
OUTPUT VOLTAGE vs. TEMPERATURE
(MAX15006A/MAX15007A)
MAX15006 toc03
OUTPUT VOLTAGE vs. INPUT VOLTAGE
(MAX15006A/MAX15007A)
IGND (μA)
MAX15006/MAX15007
40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
0
-50
-25
0
25
50
75
TEMPERATURE (°C)
100 125 150
-50
-25
0
25
50
75
TEMPERATURE (°C)
_______________________________________________________________________________________
100 125 150
40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
24
21
NUMBER OF UNITS
NUMBER OF UNITS
21
18
15
12
9
MAX15007, IOUT = 0
50 UNITS TESTED
18
15
12
6
27
9
21
18
15
12
9
6
6
3
3
3
0
0
0
10.4
10.5
10.6
10.7 10.8
10.9
11.0
10.8
10.9
11.0
11.1 11.2
11.3
11.6
11.4
IGND (μA)
IGND (μA)
LOAD-TRANSIENT RESPONSE
(MAX15006B/MAX15007B)
INPUT-VOLTAGE STEP RESPONSE
(MAX15006B/MAX15007B, IOUT = 1mA)
MAX15006 toc13
MAX15007, IOUT = 0
50 UNITS TESTED
24
NUMBER OF UNITS
24
27
MAX15006 toc11
MAX15007, IOUT = 0
50 UNITS TESTED
MAX15006 toc10
27
GROUND CURRENT DISTRIBUTION
(TA = +125°C)
GROUND CURRENT DISTRIBUTION
(TA = +25°C)
MAX15006 toc12
GROUND CURRENT DISTRIBUTION
(TA = -40°C)
11.7
11.8
11.9
12.0
12.1
IGND (μA)
STARTUP RESPONSE
MAX15006 toc14
VOUT
AC-COUPLED
200mV/div
50mA
IOUT
1mA
MAX15006 toc15
18V
VIN
14V
VIN
5V/div
VOUT
AC-COUPLED
100mV/div
VOUT
2V/div
MAX15006B/MAX15007B
IOUT = 1mA
400μs/div
400μs/div
ENABLE STARTUP RESPONSE
ENABLE STARTUP RESPONSE
MAX15006 toc16
MAX15006B/MAX15007B
IOUT = 0
400μs/div
200μs/div
ENABLE STARTUP RESPONSE
MAX15006 toc17
MAX15006 toc18
EN
1V/div
EN
1V/div
EN
1V/div
VOUT
2V/div
VOUT
2V/div
VOUT
2V/div
MAX15006B/MAX15007B
IOUT = 50mA
400μs/div
MAX15006B/MAX15007B
VIN = 40V, IOUT = 0
400μs/div
_______________________________________________________________________________________
5
MAX15006/MAX15007
Typical Operating Characteristics (continued)
(VIN = 14V, CIN = 0.1µF, COUT = 2.2µF, VEN = VIN, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
(VIN = 14V, CIN = 0.1µF, COUT = 2.2µF, VEN = VIN, TA = +25°C, unless otherwise noted.)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
IOUT = 50mA
-10
-20
EN
1V/div
COUT = 2.2μF
PSRR (dB)
-30
-40
-50
-60
-70
VOUT
2V/div
-80
MAX15006B/MAX15007B
VIN = 40V, IOUT = 50mA
COUT = 10μF
-90
-100
0.1
0.01
400μs/div
1
10
100
1000
10
MAX15006 toc21
0
OUTPUT-NOISE SPECTRAL DENSITY
vs. FREQUENCY
OUTPUT-NOISE SPECTRAL DENSITY (μV/√Hz)
MAX15006 toc19
MAX15006 toc20
ENABLE STARTUP RESPONSE
1
0.1
MAX15006A/MAX15007A
IOUT = 50mA
0.01
0.01
FREQUENCY (kHz)
10
MAX15006 toc23
150
135
120
105
en (μVRMS)
1
0.1
90
75
60
45
30
MAX15006B/MAX15007B
IOUT = 50mA
15
0.01
MAX15006A/MAX15007A
0
0.01
0.1
1
FREQUENCY (kHz)
6
1
OUTPUT VOLTAGE NOISE
vs. LOAD CURRENT
MAX15006 toc22
10
0.1
FREQUENCY (kHz)
OUTPUT-NOISE SPECTRAL DENSITY
vs. FREQUENCY
OUTPUT-NOISE SPECTRAL DENSITY (μV/√Hz)
MAX15006/MAX15007
40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
10
100
0
5
10 15 20 25 30 35 40 45 50
IOUT (mA)
_______________________________________________________________________________________
100
40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
OUTPUT VOLTAGE NOISE
vs. OUTPUT CAPACITANCE
CLAMPED LOAD DUMP
(IOUT = 0)
MAX15006 toc25
MAX15006 toc24
150
135
120
40V
VIN
en (μVRMS)
105
90
13.5V
75
60
45
VOUT
AC-COUPLED
20mV/div
30
MAX15006A/MAX15007A
IOUT = 25mA
15
0
0
2
4
6
8 10 12 14 16 18 20 22
100ms/div
COUT (μF)
Pin Description
PIN
MAX15006
MAX15007
NAME
FUNCTION
TDFN
SO
TDFN
SO
1, 2
1
1, 2
1
IN
3
2, 3,
4, 6, 7
—
2, 4, 6, 7
N.C.
No Connection. Not internally connected.
4
5
4
5
GND
Ground
5, 6
8
5, 6
8
OUT
Regulator Output. Bypass OUT to GND with a low-ESR capacitor with a
minimum 2.2µF.
Regulator Supply Input. Supply voltage ranges from 4V to 40V. Bypass
with a 0.1µF capacitor to GND.
—
—
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
EP
EP
EP
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.
_______________________________________________________________________________________
7
MAX15006/MAX15007
Typical Operating Characteristics (continued)
(VIN = 14V, CIN = 0.1µF, COUT = 2.2µF, VEN = VIN, TA = +25°C, unless otherwise noted.)
40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
MAX15006/MAX15007
Functional Diagrams
IN
+
THERMAL
SENSOR
1.242V
REF
FET DRIVER
WITH
CURRENT LIMIT
ERROR
AMPLIFIER
OUT
GND
MAX15006
Figure 1. MAX15006 Simplified Functional Diagram
IN
EN
CONTROL
LOGIC
+
THERMAL
SENSOR
1.242V
REF
FET DRIVER
WITH
CURRENT LIMIT
ERROR
AMPLIFIER
OUT
GND
MAX15007
Figure 2. MAX15007 Simplified Functional Diagram
8
_______________________________________________________________________________________
40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
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 or +5V. Thermal shutdown and short-circuit protection prevent damage during overtemperature and overcurrent conditions. 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 shutdown
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.
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 protection 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 guaranteed 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 transistor can quickly heat the device. When the
die temperature reaches +165°C, the MAX15006/
MAX15007 shut down and automatically restart after
the die temperature cools by 20°C.
EN Input (MAX15007 Only)
VIN = 18V, VOUT = 5V
50
OUTPUT CURRENT (mA)
45
VIN = 18V,
VOUT = 3.3V
40
35
30
25
VIN = 26V, VOUT = 5V
20
15
10
55
VIN = 26V, VOUT = 3.3V
5
VIN = 18V, VOUT = 5V
50
45
OUTPUT CURRENT (mA)
55
MAX15006 fig03a
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-
MAX15006 fig03b
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.
VIN = 18V,
VOUT = 3.3V
40
35
30
25
VIN = 26V, VOUT = 5V
20
15
10
VIN = 26V, VOUT = 3.3V
5
0
0
80 85 90 95 100 105 110 115 120 125 130
80 85 90 95 100 105 110 115 120 125 130
AMBIENT TEMPERATURE (°C)
AMBIENT TEMPERATURE (°C)
Figure 3a. Minimum Output Current vs. Ambient Temperature
(6-Pin TDFN-EP)
Figure 3b. Minimum Output Current vs. Ambient Temperature
(8-Pin SO-EP)
_______________________________________________________________________________________
9
MAX15006/MAX15007
Detailed Description
Applications Information
Available Output Current Calculation
The MAX15006/MAX15007 provide up to 50mA of continuous output current. The input voltage range extends
to 40V. Package power dissipation limits the amount of
output current available for a given input/output voltage
and ambient temperature. Figure 4 shows the maximum
allowable power dissipation for these devices to keep the
junction temperature below +150°C. Figure 4 assumes
that the exposed metal pad of the MAX15006/MAX15007
is soldered to 1in2 of PCB copper.
For the SO-EP package:
⎧1.8605W for TA ≤ + 70°C
⎫
⎪
⎪
PD = ⎨
⎬
W
+
°
<
≤
+
°
.
−
.
–
°
1
8605
W
0
0233
70
70
125
x
T
C
for
C
T
C
(
)
A
A
⎪
⎪
°C
⎩
⎭
After determining the allowable package dissipation,
calculate the maximum allowable output current, without exceeding the +150°C junction temperature, using
the following formula:
PD
≤ 50mA
VIN − VOUT
2.4
2.2
MAX15006 fig04
IOUT(MAX) =
PD (W)
MAX15006/MAX15007
40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
1.9408W
(6-PIN TDFN)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
DERATE
23.8mW/°C
1.8605W
(8-PIN SO-EP)
Example 1 (TDFN Package):
TA = +125°C
VIN = 26V
VOUT = 3.3V
Calculate the maximum allowable package dissipation
at the given temperature as follows:
DERATE
23.3mW/°C
0.6
0.4
0.2
0
0
20
40
60
80 100
TEMPERATURE (°C)
120
The above equations do not include the negligible
power dissipation from self-heating due to the IC
ground current.
140
PD = 1.9048W − 0.0238
W
(125°C − 70°C) = 595.8mW
°C
And establish the maximum output current:
Figure 4. Calculated Maximum Power Dissipation vs. Ambient
Temperature
Use Figure 4 to determine the allowable package dissipation for a given ambient temperature. Alternately, use
the following formulas to calculate the allowable package dissipation. For the TDFN package:
⎧1.9048W for TA ≤ + 70°C
⎫
⎪
⎪
PD = ⎨
⎬
W
⎪1.9048W − 0.0238 °C x (TA – 70°C) for + 70°C < TA ≤ + 125°C⎪
⎩
⎭
10
IOUT(MAX) =
595.8mW
= 26.2mA
26V − 3.3V
Example 2 (TDFN Package):
TA = +85°C
VIN = 14V
VOUT = 5V
Calculate the maximum allowable package dissipation
at the given temperature as follows:
PD = 1.9048W − 0.0238
W
(85°C − 70°C) = 1.5478W
°C
______________________________________________________________________________________
40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
IOUT(MAX) =
1.5478W
= 172mA ⇒ IOUT(MAX) = 50mA
14V − 5V
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:
IOUT(MAX) =
1.9048W
= 476mA ⇒ IOUT(MAX) = 50mA
9V − 5V
Alternately, use Figures 5a and 5b 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 powersupply 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 operating temperatures.
In Examples 2 and 3, the maximum output current is
calculated as 172mA and 476mA, respectively; however, the allowable output current cannot exceed 50mA.
TA = +70°C
40
35
TA = +85°C
30
25
TA = +125°C
VOUT = 5V
6-PIN TDFN
0
5
10
TA = +70°C
40
35
30
25
TA = +85°C
TA = +125°C
20
15
10
20
15
10
5
0
MAX15006 fig05b
MAX15006 fig05a
60
55
50
45
IOUT(MAX) (mA)
IOUT(MAX) (mA)
60
55
50
45
VOUT = 5V
8-PIN SO-EP
5
0
15
20
25
30
35
40
VIN (V)
Figure 5a. Calculated Maximum Output Current vs. Input
Voltage (6-Pin TDFN-EP)
0
5
10
15
20
25
30
35
40
VIN (V)
Figure 5b. Calculated Maximum Output Current vs. Input
Voltage (8-Pin SO-EP)
______________________________________________________________________________________
11
MAX15006/MAX15007
Then determine the maximum output current:
40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
MAX15006/MAX15007
Selector Guide
PART
ENABLE INPUT
FIXED OUTPUT
VOLTAGE (V)
TOP MARK
PIN-PACKAGE
MAX15006AASA+
—
3.3
—
8 SO-EP
MAX15006AATT+
—
3.3
APE
6 TDFN-EP
MAX15006BASA+
—
5
—
8 SO-EP
MAX15006BATT+
—
5
APF
6 TDFN-EP
MAX15007AASA+
√
3.3
—
8 SO-EP
6 TDFN-EP
MAX15007AATT+
√
3.3
APG
MAX15007BASA+
√
5
—
8 SO-EP
MAX15007BATT+
√
5
APH
6 TDFN-EP
Pin Configurations (continued)
TOP VIEW
OUT
OUT
GND
6
5
4
MAX15007A
MAX15007B
MAX15007A
MAX15007B
1
2
3
IN
IN
EN
1
N.C.
EN
+
8
OUT
2
7
N.C.
3
6
N.C.
5
GND
*EP
N.C. 4
*EP
+
IN
SO
*EXPOSED PAD
TDFN
Ordering Information (continued)
PART
PINPACKAGE
MAX15007AASA+
8 SO-EP*
MAX15007AATT+
6 TDFN-EP*
MAX15007BASA+
8 SO-EP*
MAX15007BATT+
6 TDFN-EP*
TOP
MARK
PKG
CODE
—
S8E-12
APG
T633-2
—
S8E-12
APH
T633-2
Chip Information
PROCESS: BiCMOS
Note: All devices are specified over the -40°C to +125°C operating temperature range.
+Denotes lead-free package.
*EP = Exposed pad.
12
______________________________________________________________________________________
40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
6, 8, &10L, DFN THIN.EPS
PACKAGE OUTLINE, 6,8,10 & 14L,
TDFN, EXPOSED PAD, 3x3x0.80 mm
21-0137
H
1
2
______________________________________________________________________________________
13
MAX15006/MAX15007
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
MAX15006/MAX15007
40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
COMMON DIMENSIONS
PACKAGE VARIATIONS
SYMBOL
MIN.
MAX.
PKG. CODE
N
D2
E2
e
JEDEC SPEC
b
A
0.70
0.80
T633-1
6
1.50±0.10
2.30±0.10
0.95 BSC
MO229 / WEEA
0.40±0.05
1.90 REF
D
2.90
3.10
T633-2
6
1.50±0.10
2.30±0.10
0.95 BSC
MO229 / WEEA
0.40±0.05
1.90 REF
[(N/2)-1] x e
E
2.90
3.10
T833-1
8
1.50±0.10
2.30±0.10
0.65 BSC
MO229 / WEEC
0.30±0.05
1.95 REF
A1
0.00
0.05
T833-2
8
1.50±0.10
2.30±0.10
0.65 BSC
MO229 / WEEC
0.30±0.05
1.95 REF
L
0.20
0.40
T833-3
8
1.50±0.10
2.30±0.10
0.65 BSC
MO229 / WEEC
0.30±0.05
1.95 REF
T1033-1
10
1.50±0.10
2.30±0.10
0.50 BSC
MO229 / WEED-3
0.25±0.05
2.00 REF
k
0.25 MIN.
A2
0.20 REF.
T1033-2
10
1.50±0.10
2.30±0.10
0.50 BSC
MO229 / WEED-3
0.25±0.05
2.00 REF
T1433-1
14
1.70±0.10
2.30±0.10
0.40 BSC
----
0.20±0.05
2.40 REF
T1433-2
14
1.70±0.10
2.30±0.10
0.40 BSC
----
0.20±0.05
2.40 REF
PACKAGE OUTLINE, 6,8,10 & 14L,
TDFN, EXPOSED PAD, 3x3x0.80 mm
-DRAWING NOT TO SCALE-
14
21-0137
______________________________________________________________________________________
H
2
2
40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
8L, SOIC EXP. PAD.EPS
PACKAGE OUTLINE
8L SOIC, .150" EXPOSED PAD
21-0111
C
1
1
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 ____________________ 15
© 2006 Maxim Integrated Products
Heaney
is a registered trademark of Maxim Integrated Products, Inc.
MAX15006/MAX15007
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)