ST STLQ015XG25R, STLQ015XG28R, STLQ015XG30R, STLQ015XG31R, STLQ015XG33R User Manual
Features
■ Input voltage from 1.5 to 5.5 V
■ Very low quiescent current:
– 1.0 µA (typ) at no load
– 1.4 µA (typ) at 150 mA load
– 1 nA (typ) in OFF mode
– 200 nA max in OFF mode at 125 °C
■ Output voltage tolerance: ± 2% at 25 °C
■ 150 mA guaranteed output current
■ Wide range of output voltages: 0.8 V to 3.3 V in
100 mV steps
■ Logic-controlled electronic shutdown
■ Compatible with ceramic capacitor (C
µF)
■ Internal current and thermal limit
■ Package: SOT666-6L
■ Temperature range: -40 °C to 125 °C
OUT
= 1
STLQ015xx
150 mA, ultra-low quiescent current
linear voltage regulator
SOT666
requiring very long standby time. The enable logic
control function puts the STLQ015xx in shutdown
mode, reducing total current consumption to 1 nA.
The device also includes short-circuit constantcurrent limiting and thermal protection. Typical
applications for the device are portable and
battery-powered systems, electronic sensors, and
microcontroller power supply.
Description
The STLQ015xx provides 150 mA of maximum
current from an input voltage ranging from 1.5 V
to 5.5 V, with a typical dropout voltage of 112 mV.
The key feature of this device is its quiescent
current, which is just 1.4 µA at maximum output
current. The device is stable with a ceramic
capacitor on the output. It offers very low
quiescent current, extending battery life and
making the device suitable for applications
Table 1. Device summary
Part numbers Order codes Output voltages
STLQ015XX25 STLQ015XG25R 2.5 V
January 2011 Doc ID 17285 Rev 2 1/17
STLQ015XX28 STLQ015XG28R 2.8 V
STLQ015XX30 STLQ015XG30R 3.0 V
STLQ015XX31 STLQ015XG31R 3.1 V
STLQ015XX33 STLQ015XG33R 3.3 V
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Contents STLQ015xx
Contents
1 STLQ015xx block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Pin configuration and description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8 Different output voltage versions of the STLQ015xx
available on request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2/17 Doc ID 17285 Rev 2
STLQ015xx STLQ015xx block diagram
1 STLQ015xx block diagram
Figure 1. Device block diagram
OUTIN
OUTIN
ENABLE
ENABLE
ON
ON
OFF
OFF
EN
EN
Thermal Prot.
Thermal Prot.
Over Current
Over Current
Vreference
Vreference
R1
R1
R2
R2
GND
GND
Doc ID 17285 Rev 2 3/17
Pin configuration and description STLQ015xx
2 Pin configuration and description
Figure 2. Pin configuration (top view)
Table 2. Pin description
Pin Symbol Function
Enable input.
1EN
2 GND Ground
3 IN Input voltage
Set V
Set V
= High to turn on the device.
EN
= Low to turn off the device.
EN
4 OUT Output voltage
5 NC Not connected
6 NC Not connected
4/17 Doc ID 17285 Rev 2
STLQ015xx Typical application
3 Typical application
Figure 3. Typical application circuit
Doc ID 17285 Rev 2 5/17
Maximum ratings STLQ015xx
4 Maximum ratings
Table 3. Absolute maximum ratings
Symbol Parameter Value Unit
V
V
I
V
IN
OUT
EN
OUT
DC input voltage -0.3 to 7 V
DC output voltage - 0.3 to VIN + 0.3 V
Enable input voltage - 0.3 to VIN + 0.3 V
Output current Internally limited mA
Human Body Model ±
3kV
ESD
Machine Model ± 300 V
T
P
STG
T
D
OP
Power dissipation Internally limited mW
Storage temperature range -65 to 150 °C
Max junction temperature 150 °C
Note: Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these conditions is not implied. All values are referred to GND.
Table 4. Thermal data
Symbol Parameter SOT666 Unit
R
R
thJA
thJC
Thermal resistance junction-ambient 132 °C/W
Thermal resistance junction-case 56 °C/W
6/17 Doc ID 17285 Rev 2
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