A Product Line of
Diodes Incorporated
ZXTR2008K
100V INPUT, 8.2V 50mA REGULATOR TRANSISTOR
Description
The ZXTR2008K monolithically integrates a transistor, Zener diode
and resistor to function as a high voltage linear regulator. The device
regulates with an 8.2V nominal output at 15mA. It is designed for use
in high voltage applications where standard linear regulators cannot
be used. This function is fully integrated into a TO252 package,
minimizing PCB area and reducing number of components when
compared with a multi-chip discrete solution.
Features
Series Linear Regulator Using Emitter-Follower Stage
Input Voltage = 12V to 100V
Output Voltage = 8.2V ±10%
Fully integrated into a TO252 package
Totally Lead-Free & Fully RoHS compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Qualified to AEC-Q101 Standards for High Reliability
Applications
Supply voltage regulation in:
Networking
Telecom
Power Over Ethernet (PoE)
Mechanical Data
Case: TO252 (DPAK)
Case Material: Molded Plastic. “Green” Molding Compound
UL Flammability Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminals: Finish - Matte Tin Plated Leads, Solderable per
MIL-STD-202, Method 208
Weight: 0.34 grams (approximate)
TO252 (DPAK)
Pin Name
V
IN
GND
V
OUT
Pin Function
Input Supply
Power Ground
Voltage Output
Top View
Internal Device
Schematic
Top View
Pin-Out
Ordering Information
(Note 4)
Product
ZXTR2008K-13
Notes:
Package
TO252 (DPAK)
Marking
ZXTR 2008
Reel size (inches)
13
Tape width (mm)
16
Quantity per reel
2,500
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen and Antimony free,"Green"
and Lead-Free.
3. Halogen and Antimony free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. For packaging details, go to our website at http://www.diodes.com/products/packages.html
Marking Information
ZXTR2008 = Product Type Marking Code
YYWW = Date Code Marking
YY = Last Digit of Year, (ex: 13 = 2013)
WW = Week Code 01 - 52
ZXTR
2008
YYWW
ZXTR2008K
Document number: DS36329 Rev. 2 - 2
1 of 7
www.diodes.com
December 2013
© Diodes Incorporated
A Product Line of
Diodes Incorporated
ZXTR2008K
Absolute Maximum Ratings
(Voltage relative to GND, @T
A
= +25°C, unless otherwise specified.)
Characteristic
Input Voltage
Continuous Input & Output Current
Peak Pulsed Input & Output Current
Maximum Voltage applied to V
OUT
Symbol
V
IN
I
IN,
I
OUT
I
IM,
I
OM
V
OUT(max)
Value
-0.3 to 100
550
2
14.5
Unit
V
mA
A
V
Maximum Current at V
IN
= 48V
(@T
A
= +25°C, unless otherwise specified.)
Characteristic
Continuous Output Current
Pulsed Output Current
(Note 7)
(Note 8)
(Note 9)
Symbol
I
OUT
I
OM
Value
55
900
190
Unit
mA
mA
Thermal Characteristics
Characteristic
(Note 5)
(Note 6)
(Note 5)
Thermal Resistance, Junction to Ambient
(Note 6)
Thermal Resistance, Junction to Lead
(Note 10)
Thermal Resistance, Junction to Case
(Note 10)
Recommended Operating Junction Temperature Range
Maximum Operating Junction and Storage Temperature Range
Power Dissipation
Symbol
P
D
R
θJA
R
θJL
R
θJC
T
J
T
J,
T
STG
Value
2.3
1.1
44
90
8.4
14.6
-40 to +125
-65 to +150
Unit
W
°C/W
°C
°C
ESD Ratings
(Note 11)
Characteristics
Electrostatic Discharge – Human Body Model
Electrostatic Discharge – Machine Model
Notes:
Symbols
ESD HBM
ESD MM
Value
4000
400
Unit
V
V
JEDEC Class
3A
C
5. For a device mounted with the exposed V
IN
pad on 50mm x 50mm 1oz copper that is on a single-sided 1.6mm FR4 PCB; device is measured under still
air conditions whilst operating in steady-state.
6. Same as note 5, except mounted on 15mm x 15mm 1oz copper.
7. Same as note 5, whilst operating at V
IN
= 48V. Refer to Safe Operating Area for other Input Voltages.
8. Same as note 5, except measured with a single pulse width = 100µs and V
IN
= 48V.
9. Same as note 5, except measured with a single pulse width = 10ms and V
IN
= 48V.
10.
R
θJL
= Thermal resistance from junction to solder-point (on the exposed V
IN
pad).
R
θJC
= Thermal resistance from junction to the top of case.
11. Refer to JEDEC specification JESD22-A114 and JESD22-A115
.
ZXTR2008K
Document number: DS36329 Rev. 2 - 2
2 of 7
www.diodes.com
December 2013
© Diodes Incorporated
A Product Line of
Diodes Incorporated
ZXTR2008K
Thermal Characteristics and Derating Information
Max Power Dissipation (W)
Continuous Output Current (mA)
3.0
T
J
2.5
2.0
1.5
1.0
0.5
0.0
0
15mm x 15mm
1oz Cu
= 125°C
= 150°C
50mm x 50mm
1oz Cu
Steady state D.C.
T
A
= 25°C
T
J
125°C
15mm x 15mm
1oz Cu
100
50mm x 50mm
1oz Cu
25
50
75
100
125
150
10
12 20
30
40
50
60
70
80
90
100
Ambient Temperature (°C)
Input Voltage (V)
Derating Curve
Thermal Resistance (°C/W)
Max Power Dissipation (W)
100
40
30
20
10
D=0.1
50mm x 50mm
1oz Cu
Safe Operating Area
Single Pulse
T
A
= 25°C
T
J
125°C
50mm x 50mm
1oz Cu
D=0.5
D=0.2
Single Pulse
D=0.05
10
0
100µ 1m 10m 100m
1
10
100
1k
10k
1
100µ
1m
10m 100m
1
10
100
1k
Pulse Width (s)
Transient Thermal Impedance
Pulse Width (s)
Pulse Power Dissipation
ZXTR2008K
Document number: DS36329 Rev. 2 - 2
3 of 7
www.diodes.com
December 2013
© Diodes Incorporated
A Product Line of
Diodes Incorporated
ZXTR2008K
Electrical Characteristics
(@T
A
= +25°C, unless otherwise specified.)
Characteristic
Output Voltage (Note 12)
Line Regulation (Notes 12 & 13)
Temperature Coefficient
Load Regulation (Notes 12 & 14)
Minimum Value of Input Voltage Required
to Maintain Line Regulation
Quiescent Current
Power Supply Rejection Ratio
Notes:
Symbol
V
OUT
∆V
OUT
∆V
OUT
/∆T
∆V
OUT
V
IN(MIN)
I
Q
V
IN
/V
OUT
Min
7.38
—
—
—
12
—
—
Typ
8.2
10
10
-180
-250
—
275
650
38
Max
9.02
300
—
-400
-500
—
500
900
—
Unit
V
mV
mV/°C
mV
V
µA
dB
Test Condition
V
IN
= 48V, I
OUT
= 15mA
V
IN
= 12 to 100V, I
OUT
= 15mA
T
J
= -40°C to +125°C
V
IN
= 48V, I
OUT
= 15mA
I
OUT
= 0.1 to 30mA, V
IN
= 48V
I
OUT
= 0.1 to 100mA, V
IN
= 48V
—
V
IN
= 48V, I
OUT
= 10µA
V
IN
= 100V, I
OUT
= 10µA
C
OUT
= 100nF, I
OUT
= 15mA,
V
OUT
= 8.2V, V
IN
=12 to 100V, f=100Hz
12. Measured under pulsed conditions. Pulse width
≤
300μs. Duty cycle
≤
2%.
13. Line regulation
∆V
OUT
= V
OUT
(@ V
IN
= 100V) – V
OUT
(@ V
IN
= 12V)
14. Load regulation
∆V
OUT
= V
OUT
(@ I
OUT
= 30mA) – V
OUT
(@ I
OUT
= 0.1mA)
∆V
OUT
= V
OUT
(@ I
OUT
= 100mA) – V
OUT
(@ I
OUT
= 0.1mA)
Typical Application Circuit
Pin Functions
Pin Name
V
IN
GND
V
OUT
Pin Function
Input Supply
Power Ground
Voltage Output
Notes
To maintain output regulation the input voltage can vary from 12V to 100V with respect to the GND pin. It is
recommended to connect a 1µF capacitor to GND.
This pin should be tied to the system ground.
Outputs a regulated 8.2V. It is recommended to connect a 10µF capacitor to GND. Minimum of 10µA must
be drawn from V
OUT
to maintain regulation. The pin can be pulled high to a maximum of 14.5V with respect
to ground.
ZXTR2008K
Document number: DS36329 Rev. 2 - 2
4 of 7
www.diodes.com
December 2013
© Diodes Incorporated
A Product Line of
Diodes Incorporated
ZXTR2008K
Typical Electrical Characteristics
(@T
A
= +25°C, unless otherwise specified.)
70
60
50
40
30
20
10
-5µ
0
5µ
10µ
V
IN
V
OUT
8.4
8.2
8.0
7.8
7.6
7.4
7.2
7.0
-4µ
-2µ
I
OUT
I
OUT
= 0 to 30mA
Slew Rate=1A/
s
C
OUT
= 100nF
V
IN
=18V
70
V
OUT
60
50
40
30
20
10
0
2µ
4µ
6µ
8µ
0
10µ
Line transient response
V
OUT
Output Voltage (mV)
I
OUT
= 15mA
T
J
= 125°C
Time (s)
Time (s)
Load transient response
V
OUT
Output Voltage (mV)
1250
1000
750
500
250
0
-250
-500
-750
20
40
T
J
= -40°C
T
J
= 25°C
T
J
= 100°C
T
J
= 85°C
V
IN
= 48V
T
J
= 125°C
1200
800
400
0
-400
-800
T
J
= 100°C
T
J
= 85°C
T
J
= 25°C
T
J
= -40°C
12 20
30
40
50
60
70
80
90 100
-1000
0.1
Line Regulation (Note 15)
1200
V
IN
= 48V
1000
800
I
OUT
= 15mA
600
400
200
0
-200
-400
-600
-800
-1000
-40 -25
0
V
IN
Input Voltage (V)
I
OUT
Output Current (mA)
60
80
100
Load Regulation (Note 16)
900
T
J
= 125°C
T
J
= 100°C
T
J
= 85°C
V
OUT
Output Voltage (mV)
I
Q
Quiescent Current (
A)
800
700
600
500
400
300
200
100
0
12
I
OUT
= 10µA
T
J
= 25°C
T
J
= -40°C
25
50
75
100
125
20
30
Junction Temperature (°C)
Temperature Coefficient (Note 17)
Notes:
15. Line regulation
∆V
OUT
= V
OUT
– V
OUT
(@ V
IN
= 12V, I
OUT
= 15mA, T
J
= +25°C)
16. Load regulation
∆V
OUT
= V
OUT
– V
OUT
(@ V
IN
= 48V, I
OUT
= 0.1mA, T
J
= +25°C)
17. Temperature Coefficient
∆V
OUT
= V
OUT
– V
OUT
(@ V
IN
= 48V, I
OUT
= 15mA, T
J
= +25°C)
V
IN
Input Voltage (V)
Quiescent Current
40
50
60
70
80
90 100
ZXTR2008K
Document number: DS36329 Rev. 2 - 2
5 of 7
www.diodes.com
December 2013
© Diodes Incorporated
I
OUT
Output Current (mA)
80
9.0
8.5
8.0
7.5
7.0
V
IN
=18 to 48V
6.5
I
OUT
= 15mA
6.0
Slew Rate=5V/
s
5.5
C
OUT
= 100nF
5.0
4.5
4.0
15µ
20µ
8.6
80
V
OUT
Output Voltage (V)
V
IN
Input Voltage (V)
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