ST715
High input voltage, 85 mA LDO linear regulator
Datasheet
-
production data
Applications
Mobile phones
Personal digital assistant (PDAs)
SOT23-5L
DFN8 (3x3 mm)
Cordless phones and similar battery-powered
systems
Description
SOT323-5L
The ST715 is a high voltage, ultra low quiescent
current and low drop linear regulator capable of
providing an output current in excess of 85 mA.
The device operates over an input voltage range
from 2.5 V to 24 V, and it is stable with output
ceramic capacitors. Fault condition protection
includes short-circuit current limitation. The ultra
low quiescent current of 3.8 µA at full load makes
it highly suitable for low power applications and
battery-powered systems. The wide input voltage
range makes the ST715 an ideal solution for low
power industrial applications. The ST715 is
available in SOT23-5, SOT323-5L or DFN8 (3x3
mm) 8 leads.
Features
2.5 V to 24 V input voltage
Low-dropout voltage (500 mV typ. at 85 mA)
Very low quiescent current (3.8 µA typ. at full
load)
85 mA guaranteed output current
Output voltages available on request: from
1.2 V to 5.0 V with 100 mV step and adjustable
Compatible with ceramic output capacitors
from 0.47 µF to 10 µF
Internal current limit
Packages: SOT23-5L, SOT323-5L and DFN8
(3x3 mm)
Temperature range: from -40 °C to 125 °C
Table 1. Device summary
Order codes
Output voltage
SOT23-5L
ST715MR
ST715M25R
ST715M33R
Marking
71AD
7125
7133
ST715C33R
ST715C50R
733
750
SOT323-5L
Marking
DFN8 (3x3 mm)
ST715PUR
ST715PU25R
ST715PU33R
Marking
715AD
71525
71533
ADJ
2.5 V
3.3 V
5.0 V
July 2018
This is information on a product in full production.
DocID14414 Rev 13
1/24
www.st.com
Contents
ST715
Contents
1
2
3
4
5
Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Output voltage selection for adjustable version . . . . . . . . . . . . . . . . . . 8
5.1
5.2
External capacitor requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power dissipation and junction temperature . . . . . . . . . . . . . . . . . . . . . . . 8
6
7
8
9
10
Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2/24
DocID14414 Rev 13
ST715
Diagram
1
Diagram
Figure 1. Block diagram (fixed version)
Figure 2. Block diagram (adjustable version)
DocID14414 Rev 13
3/24
24
Pin configuration
ST715
2
Pin configuration
Figure 3. Pin connection (top view)
SOT23-5L/SOT323-5L
DFN8 (3x3)
Table 2. Pin description (DFN8 3x3 mm)
Symbol
IN
NC
GND
FB
OUT
Pin for fixed
1
2, 3, 5, 6, 7, exp.
pad
4
-
8
Pin for
adjustable
1
2, 3, 6, 7, exp.
pad
4
5
8
Input voltage
Not internally connected
Common ground
Feedback pin
Output voltage
Name and function
Table 3. Pin description (SOT23-5L/SOT323-5L)
Symbol
IN
NC
GND
FB
OUT
Pin for fixed
4
1, 3
2
-
5
Pin for
adjustable
4
3
2
1
5
Input voltage
Not internally connected
Common ground
Feedback pin
Output voltage
Name and function
4/24
DocID14414 Rev 13
ST715
Maximum ratings
3
Maximum ratings
Table 4. Absolute maximum ratings
Symbol
V
IN
V
OUT
FB
I
OUT
DC input voltage
DC output voltage
Feedback pin
Continuous output current
Maximum power dissipation, DFN package
P
D(1)
T
STG
T
OP
Maximum power dissipation, SOT23-5L and
SOT323-5L packages
Storage temperature range
Operating junction temperature range
Parameter
Value
From -0.3 to 26
From -0.3 to V
IN
+0.3
4
According to package
power dissipation
2
W
0.45
-65 to 150
-40 to 125
°C
°C
Unit
V
V
V
A
1. P
D
is based on an operating temperature of 25 °C or less. It must be derated according to the operating temperature.
Note:
Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these conditions is not implied.
Table 5. Thermal data
Symbol
R
thJA
Parameter
Thermal resistance junction-ambient
SOT23-5L
195
SOT323-5L
245
DFN8
52
Unit
°C/W
DocID14414 Rev 13
5/24
24
