Features
■ Input voltage from 1.5 to 5.5 V
■ Ultra low dropout voltage (80 mV typ. at 100
mA load)
■ Very low quiescent current (20 µA typ. at no
load, 35 µA typ. at 150 mA load, 1 µA max in off
mode)
■ Very low noise (33 µV
kHz at V
■ Output voltage tolerance: ± 2.0 % @ 25 °C
■ 150 mA guaranteed output current
■ Wide range of output voltages available on
OUT
= 1.8 V)
from 1 kHz to 100
RMS
request: 0.8 V to 4.5 V with 100 mV step
■ Logic-controlled electronic shutdown
■ Compatible with ceramic capacitor C
■ Internal current and thermal limit
■ Flip-chip 4 bumps 0.8 x 0.8 mm. pitch
■ Temperature range: -40 °C to 125 °C
OUT
= 1 µF
Applications
■ Mobile phones
■ Personal digital assistants (PDAs)
■ Cordless phones and similar battery-powered
systems
Table 1. Device summary
LD39115Jxx
150 mA low quiescent current
low noise voltage regulator
Flip-chip 4
Description
The LD39115Jxx provides 150 mA maximum
current from an input voltage ranging from 1.5 V
to 5.5 V with a typical dropout voltage of 80 mV. It
is stabilized with a ceramic capacitor. The ultra
low drop voltage, low quiescent current and low
noise features make it suitable for low power
battery-powered applications. Power supply
rejection is 65 dB at low frequencies and starts to
roll off at 10 kHz. An enable logic control function
puts the LD39115Jxx in shutdown mode allowing
a total current consumption lower than 1 µA. The
device also includes a short-circuit constant
current limiting and thermal protection.
Part numbers Order codes Output voltages
LD39115JXX12 LD39115J12R 1.2 V
LD39115JXX15 LD39115J15R 1.5 V
LD39115JXX18 LD39115J18R 1.8 V
LD39115JXX25 LD39115J25R 2.5 V
LD39115JXX28 LD39115J28R 2.8 V
LD39115JXX30 LD39115J30R 3.0 V
LD39115JXX33 LD39115J33R 3.3 V
December 2011 Doc ID 15527 Rev 5 1/23
www.st.com
23
Contents LD39115Jxx
Contents
1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8 Different output voltage versions of the LD39115Jxx
available on request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2/23 Doc ID 15527 Rev 5
LD39115Jxx Diagram
1 Diagram
Figure 1. Block diagram
OUT
IN
IN
BandGap
BandGap
1.22 V
1.22 V
Trimming
Trimming
Thermal
Thermal
Protection
Protection
OUT
R1
R1
R2
R2
EN
EN
Enable
Enable
GND
GND
Pin configuration LD39115Jxx
2 Pin configuration
Figure 2. Pin connection (top view)
Table 2. Pin description
Pin n° Symbol Function
A2 EN Enable pin logic input: Low = shutdown, High = active
A1 GND Common ground
B2 IN Input voltage of the LDO
B1 OUT Output voltage
4/23 Doc ID 15527 Rev 5
LD39115Jxx Typical application
3 Typical application
Figure 3. Typical application circuit
V
V
V
IN
IN
IN
IN
OUT
OUT
V
OUT
OUT
1 µF
1 µF
V
V
EN
EN
EN
EN
GND
GND
1 µF
1 µF
Load
Load
Doc ID 15527 Rev 5 5/23
Maximum ratings LD39115Jxx
4 Maximum ratings
Table 3. Absolute maximum ratings
Symbol Parameter Value Unit
V
V
I
T
T
V
IN
OUT
EN
OUT
P
D
STG
OP
DC input voltage - 0.3 to 6 V
DC output voltage - 0.3 to VI + 0.3 V
Enable input voltage - 0.3 to VI + 0.3 V
Output current Internally limited mA
Power dissipation Internally limited mW
Storage temperature range - 65 to 150 °C
Operating junction temperature range - 40 to 125 °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 Value Unit
R
thJA
Thermal resistance junction-ambient 180 °C/W
6/23 Doc ID 15527 Rev 5
LD39115Jxx Electrical characteristics
5 Electrical characteristics
TJ = 25 °C, V
IN
= V
OUT(NOM)
+ 1 V, CIN = C
otherwise specified.
Table 5. Electrical characteristics for LD39115Jxx
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
IN
V
UVLO
V
OUT
ΔV
OUT
ΔV
OUT
ΔV
OUT
ΔV
OUT
V
DROP
e
N
SVR
I
Q
I
SC
V
EN
I
EN
T
ON
Operating input voltage 1.5 5.5 V
Turn-on threshold 1.45 1.48 V
Turn-off threshold 1.30 1.35 mV
>1.5V, I
V
OUT
>1.5V, I
V
V
OUT
accuracy
OUT
-40°C<T
V
OUT
V
OUT
<125°C
J
≤ 1.5V, I
≤ 1.5V, I
-40°C<TJ<125°C
Static line regulation V
Transient line regulation
(2)
Static load regulation I
Transient load
regulation
Dropout voltage
(2)
(3)
+1V ≤ VIN ≤ 5.5V, I
OUT
ΔVIN=+500mV, I
TR=TF=5µs
=1mA to 150mA 0.002 %/mA
OUT
I
=1mA to 150mA, tR=tF=5µs 40 mVpp
OUT
I
=100mA, V
OUT
-40°C<T
<125°C
J
Output noise voltage 10Hz to 100kHz, I
V
IN=VOUTNOM
Supply voltage rejection
= 1.5V
V
OUT
Quiescent current
V
I
V
V
I
I
I
I
I
V
=0.1V Freq.=1kHz
RIPPLE
= 10mA
OUT
IN=VOUTNOM
=0.1V Freq.=10kHz
RIPPLE
=10mA
OUT
=0mA 20
OUT
=0mA, -40°C<TJ<125°C 50
OUT
=0 to 150mA 35
OUT
=0 to 150mA, -40°C<TJ<125°C 70
OUT
input current in OFF MODE:
IN
VEN=GND
Short circuit current RL=0 200 mA
Enable input logic low VIN=1.5V to5.5V, -40°C<TJ<125°C 0.4
Enable input logic high V
Enable pin input current V
Turn on time
(4)
=1.5V to 5.5V, -40°C<TJ<125°C 0.9
IN
SHDN=VIN
= 1 µF, I
OUT
(1)
=1mA, TJ=25°C -2.0 2.0 %
OUT
=1mA,
OUT
=1mA ±10 mV
OUT
=1mA,
OUT
=1mA 0.01 %/V
OUT
=1mA,
OUT
>1.5V
OUT
=10mA 30 µV
OUT
+1V+/-V
RIPPLE
= 1 mA, VEN = VIN, unless
OUT
-3.0 3.0 %
±30 mV
10 mVpp
80 110 mV
74
+0.5V+/-V
RIPPLE
67
0.001 1
0.1 100 nA
30 µs
RMS
dB
µA
V
/V
Doc ID 15527 Rev 5 7/23
Electrical characteristics LD39115Jxx
Table 5. Electrical characteristics for LD39115Jxx (continued)
(1)
Symbol Parameter Test conditions Min. Typ. Max. Unit
Thermal shutdown 160
T
SHDN
C
OUT
1. For V
Hysteresis 20
Output capacitor
OUT(NOM)
< 1.2 V, V
= 1.5 V.
IN
Capacitance (see Section 6: Typical
performance characteristics)
122µF
2. All transient values are guaranteed by design, not production tested.
3. Dropout voltage is the input-to-output voltage difference at which the output voltage is 100 mV below its nominal value. This
specification does not apply for output voltages below 1.5 V.
4. Turn-on time is time measured between the enable input just exceeding V
reaching 95 % of its nominal value.
high value and the output voltage just
EN
°C
8/23 Doc ID 15527 Rev 5
LD39115Jxx Electrical characteristics
TJ = 25 °C, V
IN
= V
OUT(NOM)
+ 1 V, CIN = C
OUT
= 1 µF, I
= 1 mA, VEN = VIN, unless
OUT
otherwise specified.
Table 6. Electrical characteristics for LD39115SJxx
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
Operating input voltage 1.5 5.5 V
IN
Turn-on threshold 1.45 1.48 V
V
UVLO
Turn-off threshold 1.30 1.35 mV
V
V
OUT
OUT
>1.5V, I
>1.5V, I
=1mA, TJ=25°C -2.0 2.0 %
OUT
=1mA,
OUT
-40°C<TJ<125°C
V
V
OUT
OUT
accuracy
V
V
OUT
OUT
≤ 1.5V, I
≤ 1.5V, I
=1mA ±10 mV
OUT
=1mA,
OUT
-40°C<TJ<125°C
ΔV
ΔV
ΔV
ΔV
OUT
OUT
OUT
OUT
Static line regulation V
Transient line regulation
(2)
Static load regulation I
Transient load
regulation
(2)
+1V ≤ VIN ≤ 5.5V, I
OUT
ΔVIN=+500mV, I
= 1mA to 150mA 0.002 %/mA
OUT
I
= 1mA to 150mA, TR=TF=5µs 40 mVpp
OUT
OUT
(1)
-3.0 3.0 %
±30 mV
=1mA 0.01 %/V
OUT
=1mA, TR=TF=5µs 10 mVpp
V
DROP
SVR
Dropout voltage
e
Output noise voltage 10Hz to 100kHz, I
N
(3)
Supply voltage rejection
V
= 1.5V
OUT
I
Q
I
SC
Quiescent current
Short circuit current RL=0 200 mA
= 100mA, V
OUT
-40°C<TJ<125°C
VIN = V
OUTNOM
V
I
V
V
I
I
I
I
I
V
V
= 0.1V Freq.=1kHz
RIPPLE
=10mA
OUT
= V
IN
OUTNOM
=0.1V Freq.=10kHz
RIPPLE
=10mA
OUT
=0mA 20
OUT
=0mA, -40°C<TJ<125°C 50
OUT
=0 to 150mA 35
OUT
=0 to 150mA, -40°C<TJ<125°C 70
OUT
input current in OFF MODE:
IN
=GND
EN
>1.5V
OUT
=10mA 30
OUT
+1V+/-V
+0.5V+/-V
RIPPLE
RIPPLE
80 110 mV
74
67
0.001 1
µV
RMS
/V
dB
µA
I
Enable input logic low VIN=1.5V to 5.5V, -40°C<TJ<125°C 0.4
V
EN
I
EN
T
ON
Enable input logic high V
Enable pin input current V
Turn on time
(4)
= 1.5V to 5.5V, -40°C<TJ<125°C 0.9
IN
SHDN=VIN
0.1 100 nA
100 µs
V
Doc ID 15527 Rev 5 9/23
Electrical characteristics LD39115Jxx
Table 6. Electrical characteristics for LD39115SJxx (continued)
(1)
Symbol Parameter Test conditions Min. Typ. Max. Unit
Thermal shutdown 160
T
SHDN
C
OUT
1. For V
Hysteresis 20
Output capacitor
OUT(NOM)
< 1.2 V, V
= 1.5 V.
IN
Capacitance (see Section 6: Typical
performance characteristics)
122µF
2. All transient values are guaranteed by design, not production tested.
3. Dropout voltage is the input-to-output voltage difference at which the output voltage is 100 mV below its nominal value. This
specification does not apply for output voltages below 1.5 V.
4. Turn-on time is time measured between the enable input just exceeding V
reaching 95 % of its nominal value.
high value and the output voltage just
EN
°C
10/23 Doc ID 15527 Rev 5
LD39115Jxx Typical performance characteristics
6 Typical performance characteristics
C
= C
IN
Figure 4. Output voltage vs. temperature
(V
= 2.2 V)
V
V
IN
IN
IN
= 2.2 V, I
= 2.2 V, I
OUT
OUT
1.3
1.3
1.28
1.28
1.26
1.26
1.24
1.24
1.22
1.22
[V]
[V]
1.2
1.2
OUT
OUT
1.18
1.18
V
V
1.16
1.16
1.14
1.14
1.12
1.12
1.1
1.1
-75 -50 -25 0 25 50 75 100 125 150 175
-75 -50 -25 0 25 50 75 100 125 150 175
= 1 µF, VEN to VIN.
OUT
= 1 mA
= 1 mA
T [°C]
T [°C]
Figure 5. Output voltage vs. temperature
(VIN = 3.8 V)
3
3
V
= 3.8 V, I
V
= 3.8 V, I
IN
2.95
2.95
2.85
2.85
[V]
[V]
OUT
OUT
V
V
2.75
2.75
V
V
= 1.2 V
= 1.2 V
OUT
OUT
2.65
2.65
IN
2.9
2.9
2.8
2.8
2.7
2.7
2.6
2.6
-75 -50 -25 0 25 50 75 100 125 150 175
-75 -50 -25 0 25 50 75 100 125 150 175
OUT
OUT
= 1 mA
= 1 mA
T [°C]
T [°C]
= 2.8 V
= 2.8 V
V
V
OUT
OUT
Figure 6. Line regulation vs. temperature Figure 7. Load regulation vs. temperature
0.004
0.0035
0.0035
0.0025
0.0025
0.0015
0.0015
Load [%/mA]
Load [%/mA]
0.0005
0.0005
0.004
0.003
0.003
0.002
0.002
0.001
0.001
V
= 2.2 V, I
V
= 2.2 V, I
IN
IN
0
0
-75 -50 -25 0 25 50 75 100 125 150 175
-75 -50 -25 0 25 50 75 100 125 150 175
= from 1 to 150 mA
= from 1 to 150 mA
OUT
OUT
T [°C]
T [°C]
Figure 9. Dropout voltage vs. temperature
0.09
VDROPOUT [V]
VDROPOUT [V]
0.09
0.08
0.08
0.07
0.07
0.06
0.06
0.05
0.05
0.04
0.04
0.03
0.03
0.02
0.02
0.01
0.01
= 0.1 A
= 0.1 A
I
I
OUT
OUT
0
0
-75 -50 -25 0 25 50 75 100 125 150 175
-75 -50 -25 0 25 50 75 100 125 150 175
TEMPERATURE [°C]
TEMPERATURE [°C]
0.05
0.05
V
= from 2.2 V to 5.5 V, I
V
= from 2.2 V to 5.5 V, I
IN
IN
0
0
-75 -50 -25 0 25 50 75 100 125 150 175
-75 -50 -25 0 25 50 75 100 125 150 175
Line [%/V]
Line [%/V]
0.04
0.04
0.03
0.03
0.02
0.02
0.01
0.01
OUT
OUT
T [°C]
T [°C]
= 1 mA
= 1 mA
Figure 8. Short-circuit current vs. drop
0.45
0.45
0.4
0.4
0.35
0.35
0.3
0.3
0.25
0.25
[A]
[A]
0.2
0.2
SC
SC
I
I
0.15
0.15
0.1
0.1
0.05
0.05
0
0
voltage
C
C
= 1 µF C
= 1 µF C
IN
IN
0123456
0123456
= 1 µF(+ 10 µF electrolitycs)
= 1 µF(+ 10 µF electrolitycs)
OUT
OUT
DROP [V]
DROP [V]
=1.2V
=1.2V
V
V
OUT
OUT
125
125
85
85
55
55
25
25
0
0
-25
-25
-40
-40
=1.2 V
=1.2 V
V
V
OUT
OUT
V
= 2.8 V
V
= 2.8 V
OUT
OUT
Doc ID 15527 Rev 5 11/23
Typical performance characteristics LD39115Jxx
Figure 10. Dropout voltage vs. output current Figure 11. Output voltage vs. input voltage
(I
= 0.15 A)
0.14
0.14
0.12
0.12
0.1
0.1
0.08
0.08
0.06
0.06
VDROPOUT [V]
VDROPOUT [V]
0.04
0.04
0.02
0.02
0
0
0 0.05 0.1 0.15 0.2 0.25
0 0.05 0.1 0.15 0.2 0.25
I
I
[A]
[A]
OUT
OUT
V
= 2.8 V
V
= 2.8 V
OUT
OUT
1.4
1.4
1.2
1.2
1
1
0.8
0.8
[V]
[V]
OUT
OUT
0.6
0.6
V
V
0.4
0.4
0.2
0.2
0
0
0123456
0123456
OUT
125
125
85
= 0.15 A
= 0.15 A
I
I
OUT
OUT
V
= 1.3 V
V
= 1.3 V
OUT
OUT
V
V
[V]
[V]
IN
IN
85
55
55
25
25
0
0
-25
-25
-40
-40
Figure 12. Output voltage vs. input voltage
(V
= 1.3 V)
1.4
1.4
1.2
1.2
1
1
[V]
[V]
0.8
0.8
OUT
OUT
0.6
0.6
V
V
0.4
0.4
0.2
0.2
0
0
0123456
0123456
OUT
= 0.15 A
= 0.15 A
I
I
OUT
OUT
V
V
= 1.3 V
= 1.3 V
OUT
OUT
[V]
[V]
V
V
IN
IN
Figure 13. Output voltage vs. input voltage
(V
= 2.8 V)
OUT
3
125
125
85
85
55
55
25
25
0
0
-25
-25
-40
-40
3
I
I
= 0.15 A
= 0.15 A
OUT
OUT
2.5
2.5
2
2
[V]
[V]
1.5
1.5
OUT
OUT
V
V
1
1
0.5
0.5
0
0
0123456
0123456
V
V
[V]
[V]
IN
IN
V
V
OUT
OUT
Figure 14. Enable threshold vs. temperature Figure 15. Quiescent current vs. temperature
(V
= 1.2 V)
1
1
0.9
0.9
0.8
0.8
0.7
0.7
0.6
0.6
[V]
[V]
0.5
0.5
EN
EN
V
V
0.4
0.4
0.3
0.3
0.2
0.2
0.1
0.1
0
0
V
= 2.2 V, I
V
= 2.2 V, I
IN
IN
-75 -50 -25 0 25 50 75 100 125 150 175
-75 -50 -25 0 25 50 75 100 125 150 175
= 1 mA
= 1 mA
OUT
OUT
TEMPERATURE [°C]
TEMPERATURE [°C]
45
45
40
40
35
35
30
30
25
25
[µA]
[µA]
Q
Q
20
20
I
I
15
15
10
10
5
5
0
0
-75 -50 -25 0 25 50 75 100 125 150 175
-75 -50 -25 0 25 50 75 100 125 150 175
OUT
V
V
= 2.2 V, No Load
= 2.2 V, No Load
IN
IN
TEMPERATURE [°C]
TEMPERATURE [°C]
= 2.8 V
= 2.8 V
V
V
OUT
OUT
= 1.2 V
= 1.2 V
125
125
85
85
55
55
25
25
0
0
-25
-25
-40
-40
12/23 Doc ID 15527 Rev 5
LD39115Jxx Typical performance characteristics
Figure 16. Quiescent current vs. temperature
(V
= 2.2 V)
V
V
IN
IN
IN
= 2.2 V, I
= 2.2 V, I
= 0.15 A
= 0.15 A
OUT
OUT
TEMPERATURE [°C]
TEMPERATURE [°C]
V
= 1.2 V
V
= 1.2 V
OUT
OUT
70
70
60
60
50
50
40
40
[µA]
[µA]
Q
Q
I
I
30
30
20
20
10
10
0
0
-75 -50 -25 0 25 50 75 100 125 150 175
-75 -50 -25 0 25 50 75 100 125 150 175
Figure 17. Quiescent current vs. temperature
(VIN = 3.8 V)
70
[µA]
[µA]
I
I
70
60
60
50
50
40
40
Q
Q
30
30
20
20
10
10
= 3.8 V, I
= 3.8 V, I
V
V
IN
IN
0
0
-75 -50 -25 0 25 50 75 100 125 150 175
-75 -50 -25 0 25 50 75 100 125 150 175
= 0.15 A
= 0.15 A
OUT
OUT
V
V
OUT
OUT
TEMPERATURE [°C]
TEMPERATURE [°C]
= 2.8 V
= 2.8 V
Figure 18. Quiescent current vs. input voltage Figure 19. Quiescent current vs. output
25
[µA]
[µA]
I
I
Q
Q
25
22.5
22.5
20
20
17.5
17.5
15
15
12.5
12.5
10
10
7.5
7.5
2.5
2.5
= 1 mA
= 1 mA
I
I
OUT
OUT
5
5
0
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
V
= 1.3 V
V
= 1.3 V
OUT
OUT
[V]
[V]
V
V
IN
IN
50
50
45
45
40
40
35
35
30
30
[µA]
[µA]
25
25
Q
Q
I
I
20
20
15
15
10
10
5
5
0
0
current
= 2.3 V
= 2.3 V
V
V
IN
IN
V
= 2.8 V
V
= 2.8 V
OUT
OUT
0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225
0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225
I
I
[A]
[A]
OUT
OUT
Figure 20. Supply voltage rejection vs.
100
100
90
90
80
80
70
70
SVR [dB]
SVR [dB]
60
60
50
50
40
40
temperature (V
VINfrom 2.1 V to 2.3 V I
VINfrom 2.1 V to 2.3 V I
= 1.2 V
= 1.2 V
V
V
OUT
OUT
-75 -50 -25 0 25 50 75 100 125 150 175
-75 -50 -25 0 25 50 75 100 125 150 175
= 1.2 V)
OUT
= 10 mA, Freq. = 1 kHz
= 10 mA, Freq. = 1 kHz
OUT
OUT
T [°C]
T [°C]
Figure 21. Supply voltage rejection vs.
temperature (V
100
100
SVR [dB]
SVR [dB]
Doc ID 15527 Rev 5 13/23
VINfrom 2.2 V to 2.4 V, I
VINfrom 2.2 V to 2.4 V, I
90
90
80
80
70
70
60
60
50
50
40
40
-75 -50 -25 0 25 50 75 100 125 150 175
-75 -50 -25 0 25 50 75 100 125 150 175
OUT
OUT
V
V
= 1.3 V
= 1.3 V
OUT
OUT
= 1.3 V)
OUT
= 10 mA, Freq. = 1 kHz
= 10 mA, Freq. = 1 kHz
T [°C]
T [°C]
Typical performance characteristics LD39115Jxx
Figure 22. Supply voltage rejection vs.
100
100
90
90
80
80
70
70
SVR [dB]
SVR [dB]
60
60
50
50
40
40
temperature (Freq. = 1 kHz)
VINfrom 3.7 V to 3.9 V, I
VINfrom 3.7 V to 3.9 V, I
-75 -50 -25 0 25 50 75 100 125 150 175
-75 -50 -25 0 25 50 75 100 125 150 175
= 10 mA, Freq. = 1 kHz
= 10 mA, Freq. = 1 kHz
OUT
OUT
= 2.8 V
= 2.8 V
V
V
OUT
OUT
T [°C]
T [°C]
Figure 24. Supply voltage rejection vs.
100
100
90
90
80
80
70
70
SVR [dB]
SVR [dB]
60
60
50
50
40
40
temperature (V
VINfrom 3.2 V to 3.4 V, I
VINfrom 3.2 V to 3.4 V, I
V
V
OUT
OUT
-75 -50 -25 0 25 50 75 100 125 150 175
-75 -50 -25 0 25 50 75 100 125 150 175
= 2.8 V)
OUT
= 10 mA, Freq. = 10 kHz
= 10 mA, Freq. = 10 kHz
OUT
OUT
= 2.8 V
= 2.8 V
T [°C]
T [°C]
Figure 23. Supply voltage rejection vs.
temperature (Freq. = 10 kHz)
100
SVR [dB]
SVR [dB]
100
90
90
80
80
70
70
60
60
50
50
40
40
VINfrom 1.7 V to 1.9 V, I
VINfrom 1.7 V to 1.9 V, I
-75 -50 -25 0 25 50 75 100 125 150 175
-75 -50 -25 0 25 50 75 100 125 150 175
= 10 mA, Freq. = 10 kHz
= 10 mA, Freq. = 10 kHz
OUT
OUT
= 1.3 V
= 1.3 V
V
V
OUT
OUT
T [°C]
T [°C]
Figure 25. Supply voltage rejection vs.
frequency (V
100
100
90
90
80
80
70
70
60
60
50
50
40
40
SVR [dB]
SVR [dB]
30
30
20
20
10
10
0
0
0 102030405060708090100110
0 102030405060708090100110
VINfrom 2.1 V to 2.3 V, I
VINfrom 2.1 V to 2.3 V, I
V
V
Frequency [kHz]
Frequency [kHz]
OUT
OUT
OUT
= 1.2 V
= 1.2 V
= 1.2 V)
= 10 mA
= 10 mA
OUT
OUT
Figure 26. Supply voltage rejection vs.
100
100
90
90
80
80
70
70
60
60
50
50
40
40
SVR [dB]
SVR [dB]
30
30
20
20
10
10
0
0
frequency (V
VINfrom 1.7 V to 1.9 V, I
VINfrom 1.7 V to 1.9 V, I
0 102030405060708090100110
0 102030405060708090100110
Frequency [KHz]
Frequency [KHz]
14/23 Doc ID 15527 Rev 5
V
V
OUT
OUT
OUT
= 1.3 V)
= 10 mA
= 10 mA
OUT
OUT
= 1.3 V
= 1.3 V
Figure 27. Supply voltage rejection vs.
frequency (V
100
100
90
90
80
80
70
70
60
60
50
50
40
40
SVR [dB]
SVR [dB]
30
30
20
20
10
10
0
0
0 10 20 30 40 50 60 70 80 90 100 110 120
0 10 20 30 40 50 60 70 80 90 100 110 120
VINfrom 3.2 V to 3.4 V, I
VINfrom 3.2 V to 3.4 V, I
V
V
OUT
OUT
Frequency [kHz]
Frequency [kHz]
= 2.8 V
= 2.8 V
OUT
OUT
OUT
= 2.8 V)
= 10 mA
= 10 mA
LD39115Jxx Typical performance characteristics
Figure 28. Supply voltage rejection vs. output
100
100
90
90
80
80
70
70
60
60
50
50
40
40
SVR [dB]
SVR [dB]
30
30
20
20
10
10
0
0
Figure 30. Line regulation transient Figure 31. Start up transient
V
V
IN
IN
current
VINfrom 1.7 V to 1.9 V, F = 10 kHz
VINfrom 1.7 V to 1.9 V, F = 10 kHz
= 1.3 V
= 1.3 V
V
V
OUT
OUT
0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225 0.25
0 0.025 0.05 0.075 0.1 0.125 0.15 0.175 0.2 0.225 0.25
I
[A]
I
[A]
OUT
OUT
Figure 29. LD39115J noise
1
1
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
Noise [µV/SQRT(Hz)]
Noise [µV/SQRT(Hz)]
0
0
0 20000 40000 60000 80000 100000
0 20000 40000 60000 80000 100000
V
V
IN
IN
V
= 1.3 V, VIN= 2.3 V, TA= 25 °C
V
= 1.3 V, VIN= 2.3 V, TA= 25 °C
OUT
OUT
Freq [Hz]
Freq [Hz]
V
V
OUT
OUT
VIN from 2.2 V to 2.7 V, I
t
RISE/FALL
Figure 32. Enable transient (V
V
V
EN
EN
V
V
OUT
OUT
V
= 2.3 V, VEN from 0 to 2 V, I
IN
= 5 µs
= 1 mA, C
OUT
OUT
OUT
V
V
OUT
OUT
= 1 mA
OUT
= 1.2 V
= 1.2 V
V
V
OUT
OUT
= 1 µF, No CIN
= 1.2 V) Figure 33. Enable transient (V
VIN from 0 to 2.3 V, I
t
= 60 µs
RISE
V
V
EN
EN
V
V
OUT
OUT
V
= 2.3 V, VEN from 0 to 2 V, I
IN
OUT
= 1 mA C
OUT
= 1 µF No CIN,
OUT
OUT
= 1 mA, t
= 2.8 V)
V
= 2.8 V
V
= 2.8 V
OUT
OUT
= 6 µs
RISE
Doc ID 15527 Rev 5 15/23
Typical performance characteristics LD39115Jxx
Figure 34. Load transient (V
I
I
OUT
OUT
V
= 1.2 V
V
= 1.2 V
OUT
OUT
V
V
OUT
OUT
V
= 2. 2 V, I
IN
= from 1 to 150 mA, t
OUT
= 1.2 V) Figure 35. Load transient (V
OUT
RISE/FALL
= 5 µs
Figure 36. ESR required for stability with
2.5
2.25
2
1.75
1.5
1.25
1
0.75
0.5
ESR @ 100 kHz[oh m]
0.25
0
ceramics capacitors
UNSTABLE ZONE
I
= from 1 mA to 150 mA, CIN= 1µF (ceramic)
OUT
STABLE ZONE
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
C
[µF] (nominal value)
OUT
I
I
OUT
OUT
V
V
OUT
OUT
Vin = 3.8 V, I
= from 1 to 150 mA, t
OUT
OUT
V
= 2.8 V
V
= 2.8 V
OUT
OUT
RISE/FALL
= 2.8 V)
= 5 µs
16/23 Doc ID 15527 Rev 5
LD39115Jxx Package mechanical data
7 Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK®
®
is an ST trademark.
Doc ID 15527 Rev 5 17/23
Package mechanical data LD39115Jxx
Flip-chip 4 mechanical data
Dim.
Min. Typ. Max.
mm.
A 0.52 0.56 0.60
A1 0.17 0.20 0.23
A2 0.350.360.37
b 0.23 0.25 0.29
D 0.758 0.788 0.818
D1 0.4
E 0.758 0.788 0.818
E1 0.4
SD 0.18 0.2 0.22
SE 0.18 0.2 0.22
f0.199
ccc 0.075
18/23 Doc ID 15527 Rev 5
7504896/M
LD39115Jxx Package mechanical data
Tape and reel Flip-chip 4 mechanical data
mm. inch.
Dim.
Min. Typ. Max. Min. Typ. Max.
A178 6.926
C 12.8 13.2 0.504 0.519
D 20.2 0.795
N59 60 61 2.323 2.362 2.401
T 8.4 0.331
Ao 0.820.870.92 0.032 0.034 0.036
Bo 0.820.870.92 0.032 0.034 0.036
Ko 0.64 0.69 0.74 0.025 0.027 0.029
Po 3.9 4 4.1 0.153 0.157 0.161
P 3.9 4 4.1 0.153 0.157 0.161
Doc ID 15527 Rev 5 19/23
Package mechanical data LD39115Jxx
Figure 37. Foot print data
20/23 Doc ID 15527 Rev 5
LD39115Jxx Different output voltage versions of the LD39115Jxx available on request
8 Different output voltage versions of the LD39115Jxx
available on request
Table 7. Options available on request
Order codes Output voltages
LD39115J08R 0.8 V
LD39115J10R 1.0 V
Doc ID 15527 Rev 5 21/23
Revision history LD39115Jxx
9 Revision history
Table 8. Document revision history
Date Revision Changes
26-Mar-2009 1 Initial release.
12-Jun-2009 2 Modified: Table 1 on page 1 and Table 7 on page 21.
05-Aug-2009 3 Modified: tape and reel mechanical data on page 19.
17-May-2011 4 Modified: Table 1 on page 1 and Table 7 on page 21.
20-Dec-2011 5 Added: new order code LD39115J25R Table 1 on page 1.
22/23 Doc ID 15527 Rev 5
LD39115Jxx
Please Read Carefully:
Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the
right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any
time, without notice.
All ST products are sold pursuant to ST’s terms and conditions of sale.
Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no
liability whatsoever relating to the choice, selection or use of the ST products and services described herein.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this
document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products
or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such
third party products or services or any intellectual property contained therein.
UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED
WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS
OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT.
UNLESS EXPRESSLY APPROVED IN WRITING BY TWO AUTHORIZED ST REPRESENTATIVES, ST PRODUCTS ARE NOT
RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING
APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY,
DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE
GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK.
Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void
any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any
liability of ST.
ST and the ST logo are trademarks or registered trademarks of ST in various countries.
Information in this document supersedes and replaces all information previously supplied.
The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.
© 2011 STMicroelectronics - All rights reserved
Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -
STMicroelectronics group of companies
Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America
www.st.com
Doc ID 15527 Rev 5 23/23
Loading...