TSM6025
A +2.5V, Low-Power/Low-Dropout Precision Voltage Reference
FEATURES
Alternate Source for MAX6025
Initial Accuracy:
0.2% (max) – TSM6025A
0.4% (max) – TSM6025B
Temperature Coefficient:
15ppm/°C (max) – TSM6025A
25ppm/°C (max) – TSM6025B
Quiescent Supply Current: 35μA (max)
Low Supply Current Change with V
IN
: <1μA/V
Output Source/Sink Current: ±500μA
Low Dropout at 500μA Load Current: 100mV
Load Regulation: 0.14μV/μA
Line Regulation : 25μV/V
Stable with C
LOAD
up to 2200pF
DESCRIPTION
The TSM6025 is a 3-terminal, series-mode 2.5-V
precision voltage reference and is a pin-for-pin,
alternate source for the MAX6025 voltage reference.
Like the MAX6025, the TSM6025 consumes only
27μA of supply current at no-load, exhibits an initial
output voltage accuracy of less than 0.2%, and a low
output voltage temperature coefficient of 15ppm/°C.
In addition, the TSM6025’s output stage is stable for
all capacitive loads to 2200pF and is capable of
sinking and sourcing load currents up to 500μA.
Since the TSM6025 is a series-mode voltage
reference, its supply current is not affected by
changes in the applied supply voltage unlike two-
terminal shunt-mode references that require an
external resistor. The TSM6025’s small form factor
and low supply current operation combine to make it
an ideal choice in low-power, precision applications.
The TSM6025 is fully specified over the -40°C to
+85°C temperature range and is available in a 3-pin
SOT23 package.
APPLICATIONS
Industrial and Process-Control Systems
Hard-Disk Drives
Battery-Operated Equipment
Data Acquisition Systems
Hand-Held Equipment
Precision 3V/5V Systems
Smart Industrial Transmitters
TYPICAL APPLICATION CIRCUIT
Output Voltage Temperature Drift
2.5035
OUTPUT VOLTAGE - Volt
THREE TYPICAL DEVICES
2.5025
DEVICE #1
2.5015
DEVICE #2
2.5005
2.4995
DEVICE #3
2.4985
-40
-15
10
35
60
85
TEMPERATURE DRIFT-
°C
Page 1
© 2014 Silicon Laboratories, Inc. All rights reserved.
TSM6025
ABSOLUTE MAXIMUM RATINGS
IN to GND................................................................. -0.3V to +13.5V
OUT to GND.................................................................... -0.3V to 7V
Short Circuit to GND or IN (V
IN
< 6V) .............................. Continuous
Output Short Circuit to GND or IN (V
IN
≥
6V) .............................. 60s
Continuous Power Dissipation (T
A
= +70°C)
3-Pin SOT23 (Derate at 4.0mW/°C above +70°C) .......... 320mW
Operating Temperature Range ................................. -40°C to +85°C
Storage Temperature Range .................................. -65°C to +150°C
Lead Temperature (Soldering, 10s)...................................... +300°C
Electrical and thermal 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 condition beyond those indicated in the operational sections
of the specifications is not implied. Exposure to any absolute maximum rating conditions for extended periods may affect device reliability and
lifetime.
PACKAGE/ORDERING INFORMATION
ORDER NUMBER
PART
CARRIER QUANTITY
MARKING
TSM6025AEUR+
ACX
TSM6025AEUR+T
TSM6025BEUR+
ACY
TSM6025BEUR+T
Tape
& Reel
Tape
& Reel
Tape
& Reel
Tape
& Reel
-----
3000
-----
3000
Lead-free Program:
Silicon Labs supplies only lead-free packaging.
Consult Silicon Labs for products specified with wider operating temperature ranges.
Page 2
TSM6025 Rev. 1.0
TSM6025
ELECTRICAL CHARACTERISTICS
V
IN
= +5V, I
OUT
= 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C. See Note 1.
PARAMETER
OUTPUT
Output Voltage
SYMBOL
CONDITIONS
TSM6025A
V
OUT
T
A
= +25°C
TSM6025B
Output Voltage Temperature
Coefficient (See Note 2)
Line Regulation
Load Regulation
Dropout Voltage (See Note 5)
OUT Short-Circuit Current
Temperature Hysteresis
(See Note 3)
Long-Term Stability
DYNAMIC
Noise Voltage
Ripple Rejection
Capacitive-Load Stability Range
INPUT
Supply Voltage Range
Quiescent Supply Current
Change in Supply Current
e
OUT
∆V
OUT
/
∆V
IN
C
OUT
V
IN
I
IN
I
IN
/V
IN
f = 0.1Hz to 10Hz
f = 10Hz to 10kHz
V
IN
= 5V ±100mV, f = 120Hz
See Note 4
Guaranteed by line-regulation test
(V
OUT
+ 0.2V)
≤
V
IN
≤
12.6V
0
V
OUT
+ 0.2
27
50
125
82
2.2
12.6
35
2.0
μV
P-P
μV
RMS
dB
nF
V
μA
μA/V
∆V
OUT
/
time
1000hr at T
A
= +25°C
T
A
= 0°C to +70°C
T
A
= -40°C to +85°C
T
A
= 0°C to +70°C
T
A
= -40°C to +85°C
(V
OUT
+ 0.2V)
≤
V
IN
≤
12.6V
Sourcing: 0
≤
I
OUT
≤
500μA
Sinking: -500μA
≤
I
OUT
≤
0
I
OUT
= 500μA
V
OUT
Short to GND
V
OUT
Short to IN
0.14
0.18
100
4
4
130
50
TSM6025A
TSM6025B
MIN
2.495
-0.20
2.490
-0.40
TYP
2.500
2.500
6
6
6
6
MAX
2.505
0.20
2.510
0.40
15
20
25
30
140
0.60
0.80
200
UNITS
V
%
V
%
ppm/°C
V
OUT
∆V
OUT
/
∆V
IN
∆V
OUT
/
∆I
OUT
V
IN
-V
OUT
I
SC
μV/V
μV/μA
mV
mA
ppm
ppm/
1000hr
Note 1:
All devices are 100% production tested at T
A
= +25°C and are guaranteed by characterization for T
A
= T
MIN
to T
MAX
, as specified.
Note 2:
Temperature Coefficient is measured by the “box” method; i.e., the maximum
∆V
OUT
is divided by the maximum
∆T.
Note 3:
Temperature hysteresis is defined as the change in the +25°C output voltage before and after cycling the device from T
MIN
to T
MAX
.
Note 4:
Not production tested; guaranteed by design.
Note 5:
Dropout voltage is the minimum input voltage at which V
OUT
changes
≤0.2%
from V
OUT
at V
IN
= 5.0V.
TSM6025 Rev. 1.0
Page 3
TSM6025
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
= +5V; I
OUT
= 0mA; T
A
= +25°C, unless otherwise noted.
Output Voltage Temperature Drift
2.5035
OUTPUT VOLTAGE - Volt
OUTPUT VOLTAGE - Volt
THREE TYPICAL DEVICES
2.5025
DEVICE #1
2.5015
DEVICE #2
2.5005
2.502
THREE TYPICAL DEVICES
DEVICE A
2.501
Long-Term Output Voltage Drift
2.500
DEVICE B
2.4995
DEVICE #3
2.4985
-40
-15
10
35
60
85
2.499
DEVICE C
2.498
0
250
500
TIME - Hours
Dropout Voltage vs Source Current
0.4
DROPOUT VOLTAGE - Volt
T
A
= -40°C
750
1000
TEMPERATURE DRIFT-
°C
Line Regulation –
ΔV
OUT
/ΔV
IN
300
OUTPUT VOLTAGE CHANGE - µV
200
T
A
= +25°C
100
T
A
= +85°C
0.3
T
A
= +85°C
0.2
T
A
= +25°C
T
A
= -40°C
0.1
0
-100
2
4
6
8
10
12
14
0
0
200
400
600
800
1000
SUPPLY VOLTAGE - Volt
Load Regulation –
ΔV
OUT
/ΔI
LOAD
POWER SUPPLY REJECTION – mV/V
SOURCE CURRENT- µA
Power Supply Rejection vs Frequency
100
V
CC
=+5.5V±0.25V
10
0.4
OUTPUT VOLTAGE CHANGE - mV
0.2
T
A
= -40°C
T
A
= +85°C
0
T
A
= +25°C
-0.2
1
0.1
-0.4
-500
0.01
100
1k
10k
100k
1M
-250
0
250
500
LOAD CURRENT- µA
FREQUENCY - Hz
Page 4
TSM6025 Rev. 1.0
TSM6025
TYPICAL PERFORMANCE CHARACTERISTICS
V
IN
= +5V; I
OUT
= 0mA; T
A
= +25°C, unless otherwise noted.
Supply Current vs Input Voltage
40
SUPPLY CURENT - µA
SUPPLY CURENT - µA
Supply Current vs Temperature
40
V
CC
=+12.5V
35
V
CC
=+7.5V
36
32
30
V
CC
= +2.5V, +5.5V
25
28
24
20
2
4
6
8
10
12
14
20
-40
-15
10
35
60
85
INPUT VOLTAGE - Volt
Output Impedance vs Frequency
10k
TEMPERATURE -
°C
0.1Hz to 10Hz Output Noise
OUTPUT IMPEDANCE -
Ω
1k
46µVpp
10
1
0.1
0.1
1
100
10k
1M
1s/DIV
Small-signal Load Transient Response
FREQUENCY - Hz
Power-On Transient Response
V
OUT(N)
10µV/DIV
100
INPUT
2V/DIV
200µs/DIV
OUTPUT
20mV/DIV
OUTPUT
1V/DIV
I
OUT
50µA/DIV
I
OUT
= 0µA
→
50µA
→
0µA
10µs/DIV
TSM6025 Rev. 1.0
Page 5
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