TS2940
Taiwan Semiconductor
1A Ultra Low Dropout Voltage Regulator
GENERAL DESCRIPTION
FEATURES
The TS2940 series of fixed-voltage monolithic micropower voltage regulators is designed for a wide range of
applications. This device excellent choice of use in
battery-power application. Furthermore, the quiescent
current increases on slightly at dropout, which prolongs
battery life. This series of fixed-voltage regulators
features low drop output voltage (Typ. 60mV at light
load and 600mV at 800mA). This includes a tight initial
tolerance of 2%, extremely good line regulation of
0.05% typ., and very low output temperature coefficient.
●
Dropout voltage typically 0.6V @ Io=800mA
●
Output current up to 1A
●
Output voltage trimmed before assembly
●
-18V Reverse peak voltage
●
+30V Input over voltage protection
●
+60V Transient peak voltage
●
Internal current limit
●
Thermal shutdown protection
TO-220
2
TO-263 (D PAK)
APPLICATION
●
Post Regulator for SMPS
●
Industrial Instrumentation
TO-252 (DPAK)
SOT-223
Pin Definition:
1. Input
2. Ground
3. Output
Notes: Moisture sensitivity level: level 3. Per J-STD-020
TYPICAL APPLICATION CIRCUIT
Document Number: DS_P0000211
1
Version: D15
TS2940
Taiwan Semiconductor
ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise noted)
PARAMETER
Input Supply Voltage
(Note 2)
Input Supply Voltage
Power Dissipation
(Note 3)
Operating Junction Temperature Range
Storage Temperature Range
SYMBOL
LIMIT
UNIT
VIN
-18 ~ +60
V
VOPR
26
V
PD
Internally Limited
W
TJ
-40 ~ +125
°C
TSTG
-65 ~ +150
°C
SYMBOL
LIMIT
UNIT
THERMAL PERFORMANCE
PARAMETER
PACKAGE TYPE
60
TO-220
Thermal Resistance
TO-263
Junction to Ambient
TO-252
80
RӨJA
°C/W
150
SOT-223
170
Notes: RӨJA is the sum of the junction-to-case and case-to-ambient thermal resistances. The case thermal reference is defined
at the solder mounting surface of the drain pins. RӨJA is guaranteed by design while RӨCA is determined by the user’s board
design. RӨJA shown below for single device operation on FR-4 PCB in still air.
ELECTRICAL SPECIFICATIONS
(VIN=VOUT+1V, IL=5mA, CO=22µF, TA=25°C, unless otherwise noted)
PARAMETER
CONDITIONS
Input Supply Voltage
5mA ≤ IL ≤ 800mA,
Output Voltage
MIN
TYP
MAX
UNIT
--
--
26
V
1.030|Vo|
V
0.970|Vo|
Vo+5V ≤ VIN ≤ 26V
Output Voltage Temperature
Coefficient
5.0
3.3
--
50
150
ppm/°C
Line Regulation
Vo+2V ≤ VIN ≤ 26V
--
0.05
0.5
%
Load Regulation
5mA ≤ IL ≤ 800mA
--
0.2
1.0
%
IL=100mA
--
100
200
IL=500mA
--
300
500
IL=800mA
--
600
800
IL=5mA
--
10
15
IL=800mA
--
75
110
VOUT =0
--
--
1.5
CL=2.2µF
--
500
--
CL=3.3µF
--
350
--
CL=33µF
--
120
--
Dropout Voltage
(Note 4)
Quiescent Current
(Note 5)
Short Circuit Current
(Note 6)
Output Noise,
10Hz to 100KHz, IL=10mA
Document Number: DS_P0000211
2
mV
mA
A
µVrms
Version: D15
TS2940
Taiwan Semiconductor
ELECTRICAL SPECIFICATIONS
Note:
1.
2.
3.
4.
5.
6.
Absolute Maximum Rating is limits beyond which damage to the device may occur. For guaranteed specifications and test
conditions see the electrical characteristics.
Maximum positive supply voltage of 60V must be limited duration (
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