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TPS7A02
SBVS277B –JULY 2019–REVISED MARCH 2020
TPS7A02 Nanopower IQ, 25-nA, 200-mA, Low-Dropout Voltage Regulator With Fast
Transient Response
1 Features
3 Description
The TPS7A02 is an ultra-small, ultra-low quiescent
current low-dropout linear regulator (LDO) that can
source 200 mA with excellent transient performance.
1
•
Ultra-low IQ: 25 nA (typ), even in dropout
Shutdown IQ: 3 nA (typ)
•
•
Excellent transient response (1 mA to 50 mA)
The TPS7A02, with an ultra-low IQ of 25 nA, is
designed specifically for applications where very-low
quiescent current is a critical parameter. This device
maintains low IQ consumption even in dropout mode
to further increase the battery life. When in shutdown
or disabled mode, the device consumes ultra-low,
3-nA IQ that helps increase the shelf life of the
battery. The TPS7A02 has an output range of 0.8 V
to 5.0 V available in 50-mV steps to support the lower
core voltages of modern microcontrollers (MCUs).
–
–
< 10-µs settling time
100-mV undershoot
•
Packages:
–
–
–
1.0-mm × 1.0-mm X2SON
SOT23-5
0.64-mm x 0.64-mm DSBGA (preview)
•
•
•
•
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Input voltage range: 1.5 V to 6.0 V
Output voltage range: 0.8 V to 5.0 V (fixed)
Output accuracy: 1.5% over temperature
Smart enable pulldown
The TPS7A02 features a smart enable circuit with an
internally controlled pulldown resistor that keeps the
LDO disabled even when the EN pin is left floating
and helps minimize the external components used to
pulldown the EN pin. This circuit also helps minimize
the current drawn through the external pulldown
circuit when the device is enabled.
Very low dropout:
–
270 mV (max) at 200 mA (VOUT = 3.3 V)
•
Stable with a 1-µF or larger capacitor
The TPS7A02 is fully specified for TJ = –40°C to
+125°C operation.
2 Applications
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•
•
•
•
•
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Wearables electronics
Device Information(1)
Thermostats, smoke and heat detectors
Gas, heat, and water meters
PART NUMBER
PACKAGE
BODY SIZE (NOM)
1.00 mm × 1.00 mm
0.64 mm × 0.64 mm
2.90 mm × 1.60 mm
X2SON (4)
Blood glucose monitors and pulse oximeters
Residential circuit breakers and fault indicators
Building security and video surveillance devices
EPOS card readers
TPS7A02
DSBGA (4)(2)
SOT-23 (5)
(1) For all available packages, see the package option addendum
at the end of the data sheet.
(2) Preview package.
Load Transient Response
(VIN = VOUT + 1 V, COUT = 1 µF,
IOUT = 1 mA to 50 mA in 1 µs)
Ground Current Efficiency vs Output Current
102
100
98
400
350
300
250
200
150
100
50
250
200
150
100
50
96
94
0
-50
92
-100
-150
-200
-250
-300
-350
90
0
-50
88
TJ
-100
-150
-200
-55°C
-40°C
0°C
25°C
85°C
125°C
140°C
100
86
84
VOUT
IOUT
0.001
0.01
0.1 1
Output Current (mA)
10
-200 -100
0
100 200 300 400 500 600 700 800
Time (µs)
Curr
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.