August 2009 Doc ID 15968 Rev 2 1/17
17
LD39015Jxx
150 mA low quiescent current
low noise voltage regulator
Features
■Input voltage from 1.5 to 5.5 V
■Ultra low dropout voltage (90 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)
■Low noise (54 µVRMS from 10 Hz to 100 kHz at
VOUT = 1.8 V)
■Output voltage tolerance: ± 2.0% @ 25 °C
■150 mA guaranteed output current
■Wide range of output voltages available on
request: 0.8 V to 4.5 V with 100 mV step
■Logic-controlled electronic shutdown
■Compatible with ceramic capacitor
COUT = 1 µF
■Internal current and thermal limit
■Flip-chip 4 bumps 1.1 x 1.1 mm.
■Temperature range: -40 °C to 125 °C
Description
The LD39015Jxx 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 stable with 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
74 dB at low frequencies and starts to roll off at 10
kHz. Enable logic control function puts the
LD39015Jxx in shut-down mode allowing a total
current consumption lower than 1 µA. The device
also includes a short-circuit constant current
limiting and thermal protection. Typical
applications are mobile phones, personal digital
assistant (PDAs), cordless phone and similar
battery powered systems.
Flip-chip 4
Table 1. Device summary
Part numbers Order codes Output voltages
LD39015JXX12 LD39015J12R 1.2 V
LD39015JXX13 LD39015JJ13R 1.3 V
LD39015JXX15 LD39015J15R 1.5 V
LD39015JXX18 LD39015J18R 1.8 V
LD39015JXX28 LD39015J28R 2.8 V
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Contents LD39015Jxx
2/17 Doc ID 15968 Rev 2
Contents
1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8 Different output voltage versions of the LD39015Jxx
available on request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
LD39015Jxx Diagram
Doc ID 15968 Rev 2 3/17
1 Diagram
Figure 1. Block diagram
Trimming
1.22 V
BandGap
Enable
EN
GND
OUT
IN
Protection
Thermal R2
R1
Trimming
1.22 V
BandGap
Enable
EN
GND
OUT
IN
Protection
Thermal R2
R1
Pin configuration LD39015Jxx
4/17 Doc ID 15968 Rev 2
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
LD39015Jxx Typical application
Doc ID 15968 Rev 2 5/17
3 Typical application
Figure 3. Typical application circuit
1 µF
IN
EN
V
EN
V
IN
OUT
Load
GND
1 µF
V
OUT
1 µF
IN
EN
V
EN
V
IN
OUT
Load
GND
1 µF
V
OUT
Maximum ratings LD39015Jxx
6/17 Doc ID 15968 Rev 2
4 Maximum ratings
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 3. Absolute maximum ratings
Symbol Parameter Value Unit
VIN DC input voltage - 0.3 to 6 V
VOUT DC output voltage - 0.3 to VI + 0.3 V
VEN Enable input voltage - 0.3 to VI + 0.3 V
IOUT Output current Internally limited mA
PDPower dissipation Internally limited mW
TSTG Storage temperature range -65 to 150 °C
TOP Operating junction temperature range -40 to 125 °C
Table 4. Thermal data
Symbol Parameter Value Unit
RthJA Thermal resistance junction-ambient 180 °C/W
LD39015Jxx Electrical characteristics
Doc ID 15968 Rev 2 7/17
5 Electrical characteristics
TJ = 25 °C, VIN = VOUT(NOM) + 1 V, CIN = COUT = 1 µF, IOUT = 1 mA, VEN = VIN, unless
otherwise specified.
Table 5. Electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
VIN Operating input voltage 1.5 5.5 V
VUVLO
Turn-on threshold 1.45 1.48 V
Turn-off threshold 1.30 1.35 mV
VOUT VOUT accuracy
VOUT > 1.5V, IOUT = 1mA, TJ = 25°C -2.0 2.0
%
VOUT > 1.5V, IOUT = 1mA,
-40°C < TJ < 125°C -3.0 3.0
VOUT ≤ 1.5V, IOUT = 1mA ±10
mV
VOUT ≤ 1.5V, IOUT = 1mA,
-40°C < TJ < 125°C ±30
ΔVOUT Static line regulation VOUT +1V ≤ VIN ≤ 5.5V, IOUT = 1mA 0.01 %/V
ΔVOUT Static load regulation IOUT = 1mA to 150mA 0.002 %/mA
VDROP Dropout voltage (1) IOUT = 100mA, VOUT > 1.5V
-40°C < TJ < 125°C 90 130 mV
eNOutput noise voltage 10Hz to 100kHz, IOUT = 10mA, VOUT
= 1.8V, VIN = 2.8V 54 µVRMS
SVR Supply voltage rejection
VOUT = 1.5V
VIN = VOUTNOM + 1V +/-VRIPPLE
VRIPPLE = 0.1V, freq. = 1kHz
IOUT = 10mA
74
dB
VIN = VOUTNOM + 0.5V +/-VRIPPLE
VRIPPLE = 0.1V, Freq.=10kHz
IOUT = 10mA
67
IQQuiescent current
IOUT = 0mA 20
µA
IOUT = 0mA, -40°C < TJ < 125°C 40
IOUT = 0 to 150mA 35
IOUT = 0 to 150mA
-40°C < TJ< 125°C 50
VIN input current in OFF MODE:
VEN = GND 0.003 1
ISC Short circuit current RL = 0 200 mA
VEN
Enable input logic low VIN = 1.5V to 5.5V,
-40°C < TJ < 125°C 0.4 V
Enable input logic high VIN = 1.5V to 5.5V,
-40°C < TJ < 125°C 0.9 V
IEN Enable pin input current VSHDN = VIN, -40°C < TJ < 125°C 0.1 1 µA
TON Turn on time (2) 30 µs
Electrical characteristics LD39015Jxx
8/17 Doc ID 15968 Rev 2
TSHDN
Thermal shutdown 160 °C
Hysteresis 20
COUT Output capacitor
Capacitance (see typical
performance characteristics for
stability)
122µF
1. 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.
2. Turn-on time is time measured between the enable input just exceeding VEN High Value and the output voltage just
reaching 95% of its nominal value.
Table 5. Electrical characteristics (continued)
Symbol Parameter Test conditions Min. Typ. Max. Unit
LD39015Jxx Typical performance characteristics
Doc ID 15968 Rev 2 9/17
6 Typical performance characteristics
Figure 4. Output voltage vs. temperature Figure 5. Output voltage vs. input voltage
Figure 6. Dropout voltage vs. output current Figure 7. COUT stability region
Figure 8. Supply voltage rejection vs.
frequency
Figure 9. Output noise spectral density
1.14
1.15
1.16
1.17
1.18
1.19
1.2
1.21
1.22
1.23
1.24
-75 -50 -25 0 25 50 75 100 125 150 175
T [°C]
V
OUT
[V]
1 mA
150 mA
1.14
1.15
1.16
1.17
1.18
1.19
1.2
1.21
1.22
1.23
1.24
-75 -50 -25 0 25 50 75 100 125 150 175
T [°C]
V
OUT
[V]
1 mA
150 mA
0.6
0.8
1
1.2
1.4
1.6
1.8
2
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
V
IN
[V]
V
OUT
[V]
0.6
0.8
1
1.2
1.4
1.6
1.8
2
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
V
IN
[V]
V
OUT
[V]
0
0.5
1
1.5
2
2.5
3
0 5 10 15 20
COUT [µF] (nominal value)
ESR @ 100KHz [W]
STABLE ZONE
IOUT=1 to 150mA
CI = 1 µF, VIN = VEN = VOUTNOM +1 to 5.5 V
0
0.5
1
1.5
2
2.5
3
0 5 10 15 20
COUT [µF] (nominal value)
ESR @ 100KHz [W]
STABLE ZONE
IOUT=1 to 150mA
CI = 1 µF, VIN = VEN = VOUTNOM +1 to 5.5 V
Noise spectrum - VOUT(NOM) = 1.2V VIN=2.2V
0.0E+ 00
2.0E-06
4.0E-06
6.0E-06
8.0E-06
1.0E-05
1.2E-05
1.4E-05
10 100 1000 10000 100000
f [Hz]
Vnoise [V]
IOUT = 0A
IOUT = 1mA
IOUT = 10m A
IOUT = 100mA
Noise spectrum - VOUT(NOM) = 1.2V VIN=2.2V
0.0E+ 00
2.0E-06
4.0E-06
6.0E-06
8.0E-06
1.0E-05
1.2E-05
1.4E-05
10 100 1000 10000 100000
f [Hz]
Vnoise [V]
IOUT = 0A
IOUT = 1mA
IOUT = 10m A
IOUT = 100mA
Typical performance characteristics LD39015Jxx
10/17 Doc ID 15968 Rev 2
Figure 10. SVR vs. drop Figure 11. Quiescent current vs. IOUT
Figure 12. Quiescent current vs. input voltage Figure 13. Load transient
IOUT = 10mA to 150mA, tr = tf = 5µs
Figure 14. Line transient Figure 15. Enable transient
IOUT = 10 mA; VOUT= 1.8 V; ΔVIN = 0.5 V; VIN = from 2.550
to 3.055V; Tr = Tf = 5 µs
VIN = 1.5 V, VEN = 0 to 1 V, IOUT = 1 mA, CIN = COUT = 1 µF
60
65
70
75
80
85
90
0 0.5 1 1.5 2 2.5 3 3.5 4
V
DROP
(V
IN
-V
OUT
)
dB
I
OUT
= 10 mA, V
OUT
= 1.8 V, ΔV
IN
= 0.3 V, f = 1kHz
60
65
70
75
80
85
90
0 0.5 1 1.5 2 2.5 3 3.5 4
V
DROP
(V
IN
-V
OUT
)
dB
I
OUT
= 10 mA, V
OUT
= 1.8 V, ΔV
IN
= 0.3 V, f = 1kHz
IQ versus IOUT
0
5
10
15
20
25
30
35
40
0 102030405060708090100110120130140150
IOUT [mA]
IQ(GND) [uA
]
IQ versus IOUT
0
5
10
15
20
25
30
35
40
0 102030405060708090100110120130140150
IOUT [mA]
IQ(GND) [uA
]
IQ(GND) versus VIN
0
5
10
15
20
25
30
35
01234567
VIN [V]
IQ(GND) [uA
]
ILOAD = 1mA
ILOAD = 0
IQ(GND) versus VIN
0
5
10
15
20
25
30
35
01234567
VIN [V]
IQ(GND) [uA
]
ILOAD = 1mA
ILOAD = 0
LD39015Jxx Package mechanical data
Doc ID 15968 Rev 2 11/17
7 Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com. ECOPACK
is an ST trademark.
Package mechanical data LD39015Jxx
12/17 Doc ID 15968 Rev 2
Dim.
mm. mils.
Min. Typ. Max. Min. Typ. Max.
A0.585 0.65 0.715 23.0325.5928.15
A1 0.21 0.25 0.298.27 9.84 11.42
A2 0.40 15.75
b0.265 0.315 0.365 10.4312.40 14.37
D 1.02 1.07 1.12 40.15 42.1344.09
D1 0.5 19.69
E 1.02 1.07 1.12 40.15 42.1344.09
E1 0.5 19.69
SD 0.25 9.84
SE 0.25 9.84
Flip-chip 4 mechanical data
7224716/G
LD39015Jxx Package mechanical data
Doc ID 15968 Rev 2 13/17
Dim.
mm. inch.
Min. Typ. Max. Min. Typ. Max.
A 1786.926
C 12.813.2 0.504 0.519
D 20.2 0.795
N5960 61 2.3232.362 2.401
T8.4 0.331
Ao 1.12 1.17 1.22 0.044 0.046 0.048
Bo 1.12 1.17 1.22 0.044 0.046 0.048
Ko 0.680.730.780.027 0.0290.031
Po 3.94 4.1 0.1530.157 0.161
P3.94 4.1 0.1530.157 0.161
Tape and reel Flip-chip 4 mechanical data
Package mechanical data LD39015Jxx
14/17 Doc ID 15968 Rev 2
Figure 16. Foot print data
LD39015Jxx Different output voltage versions of the LD39015Jxx available on request
Doc ID 15968 Rev 2 15/17
8 Different output voltage versions of the LD39015Jxx
available on request
Table 6. Options available on request
Order codes Output voltages
LD39015J08R 0.8 V
LD39015J10R 1.0 V
LD39015J33R 3.3 V
LD39015Jxx
Doc ID 15968 Rev 2 17/17
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