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LD59015
150 mA low noise and high PSRR linear voltage regulator
Datasheet - production data
• Package: SOT323-5L
• Temperature range: -40 °C to 125 °C
Description
SOT323-5L
Features
• Input voltage from 2.4 to 5.5 V
• Very low quiescent current (31 µA typ. at no
load, 75 µA typ. at 150 mA load, 1 µA max. in
OFF mode)
• Very low noise (20 µVRMS at VOUT = 1.5 V)
• Output voltage tolerance: ± 1.8% at 25 °C
• 150 mA guaranteed output current
The LD59015 provides 150 mA maximum current
with an input voltage range from 2.4 V to 5.5 V,
and a typical dropout voltage of 150 mV. It is
stable with ceramic capacitors. High PSRR, low
quiescent current and low noise features make it
suitable for low power battery-powered
applications. Power supply rejection is 80 dB at
low frequency and starts to roll off at 10 kHz. The
enable logic control function puts the LD59015 in
shutdown mode, allowing a total current
consumption lower than 1 µA. The device also
includes short-circuit constant current limiting and
thermal protection. Typical applications are
mobile phones, personal digital assistants
(PDAs), cordless phones and similar batterypowered systems.
• Wide range of output voltages available on
request: 0.8 V to 3.3 V in 100 mV steps
• Logic-controlled electronic shutdown
• Compatible with ceramic capacitors
• Very high PSRR (80 dB @ 100 Hz, 76 @
10 kHz, 54 @ 100 kHz)
• Internal current and thermal limit
Table 1. Device summary
Order codes
Output voltages
LD59015C08R
0.8 V
LD59015C12R
1.2 V
LD59015C15R
1.5 V
LD59015C18R
1.8 V
LD59015C25R
2.5 V
LD59015C30R
3.0 V
LD59015C33R
3.3 V
April 2014
This is information on a product in full production.
DocID17488 Rev 4
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www.st.com
Contents
LD59015
Contents
1
Block 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8
Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
9
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
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LD59015
1
Block diagram
Block diagram
Figure 1. LD59015 block diagram
OUT
IN
BandGap
0.8 V
R1
Trimming
Thermal
Protection
R2
Enable
EN
GND
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17
Pin configuration
2
LD59015
Pin configuration
Figure 2. Pin connection (top view)
Table 2. Pin description
4/17
Pin n°
Symbol
1
IN
2
GND
Function
Input voltage
Ground
3
EN
Enable input
Set VEN > 0.9 to turn on the device
Set VEN < 0.4 to turn off the device
4
N.C.
Not connected
5
OUT
Output voltage
DocID17488 Rev 4
LD59015
3
Typical application
Typical application
Figure 3. Typical application circuit
VIN
IN
1 µF
VEN
VOUT
OUT
1 µF
EN
Load
GND
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17
Maximum ratings
4
LD59015
Maximum ratings
Table 3. Absolute maximum ratings
Symbol
VIN
Parameter
DC input voltage
Value
Unit
- 0.3 to 7
V
VOUT
DC output voltage
- 0.3 to VI + 0.3 (max. 7)
V
VEN
Enable input voltage
- 0.3 to VI + 0.3 (max. 7)
V
IOUT
Output current
Internally limited
mA
Power dissipation
Internally limited
mW
±3
kV
± 300
V
PD
Human body model
ESD
Machine model
TSTG
Storage temperature range
-65 to 150
°C
TOP
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
6/17
Parameter
RthJA
Thermal resistance junction-ambient
RthJC
Thermal resistance junction-case
DocID17488 Rev 4
Value
Unit
645.69
°C/W
116
°C/W
LD59015
5
Electrical characteristics
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
VIN
Parameter
(1)
Test conditions
Operating input voltage
Min.
2.4
Turn-on threshold
VUVLO
VOUT
Typ.
1.90
Unit
5.5
2.0
Turn-off threshold
Max.
2.15
V
1.8
%
1.95
VOUT accuracy
IOUT = 1mA, -40°C < TJ < 125°C
ΔVOUT
Static line regulation
VOUT +1V ≤ VIN ≤ 5.5V, IOUT = 1mA
0.001
%/V
ΔVOUT
Static load regulation
IOUT = 1mA to 150mA
0.001
%/mA
VDROP
Dropout voltage (2)
IOUT = 150mA, VOUT > 2.2V
-40°C < TJ < 125°C
150
Output noise voltage
10Hz to 100kHz, IOUT = 10mA,
VOUT = 1.5V
20
VIN = VOUTNOM + 1V +/-VRIPPLE
VRIPPLE = 0.5V, frequency = 1kHz
IOUT = 1mA
76
VIN = VOUTNOM + 1V +/-VRIPPLE
VRIPPLE = 0.5V, frequency =10kHz
IOUT = 1mA
76
VIN = VOUTNOM + 1V +/-VRIPPLE
VRIPPLE = 0.5V, frequency =100kHz
IOUT = 1mA
54
IOUT = 0mA
31
eN
SVR
Supply voltage rejection
VOUT = 1.5V
-1.8
IOUT = 0mA, -40°C < TJ < 125°C
Quiescent current
RL = 0
Enable input logic low
VIN = 2.4V to 5.5V,
-40°C < TJ < 85°C
Enable input logic high
VIN = 2.4V to 5.5V,
-40°C < TJ < 85°C
Enable pin input current
VSHDN = 5.5V
VEN
IEN
TON
Turn-on time
(3)
110
0.001
1
200
mA
0.4
0.9
V
V
0.1
200
DocID17488 Rev 4
dB
µA
IOUT = 0 to 150mA
-40°C < TJ< 125°C
Short-circuit current
µVRMS
/VOUT
75
VIN input current in OFF mode:
VEN = GND
ISC
mV
60
IOUT = 0 to 150mA
IQ
210
100
nA
µs
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17
Electrical characteristics
LD59015
Table 5. Electrical characteristics (continued) (1)
Symbol
TSHDN
COUT
Parameter
Test conditions
Min.
Typ.
Thermal shutdown
160
Hysteresis
20
Max.
Unit
°C
Output capacitor
Capacitance (see typical
performance characteristics for
stability)
1
4.7
µF
1. For VOUT(NOM) < 1.3 V, VIN = 2.4 V.
2. 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 to output voltages below 1.7 V.
3. 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.
Note:
8/17
All transient values are guaranteed by design, not tested in production.
DocID17488 Rev 4
LD59015
Typical performance characteristics
6
Typical performance characteristics
CIN = COUT = 1 µF
Figure 4. VOUT vs. temperature (VOUT = 0.8 V)
Figure 5. VOUT vs. temperature (VOUT = 3.3 V)
3.38
VIN = VEN = 4.3 V, IOUT = 1 mA, VOUT = 3.3 V
3.36
VOUT [V]
3.34
3.32
3.3
3.28
3.26
3.24
3.22
-75
-50
-25
0
25
50
75
100
125
150
T [°C]
Figure 6. Quiescent current vs. temperature
Figure 7. Quiescent current vs. IOUT
100.00
9,1
992 9
,1 9
9,1
,1
90.00
992 9
80.00
70.00
Iq [uA]
,T >— $@
,T
60.00
50.00
40.00
30.00
-40°C
20.00
0
20
40
60
7HPSHUDW
DWXUH>ƒ&@
80
100
120
140
160
IOUT [mA]
Figure 8. VOUT vs. VIN
Figure 9. VDROP vs. IOUT
250
150 ºC
VIN = VEN, IOUT = from 0 to 150 mA, VOUT = 3.3 V
200
125 ºC
85 ºC
55 ºC
25 ºC
VIN = VEN = from 0 to 5.5 V, IOUT = 150 mA,
VOUT = 8 V
0 ºC
-25 ºC
125 ºC
Vdrop [mV]
VOUT [V]
25°C
10.00
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
125°C
150
-40 ºC
25 ºC
100
50
-40 ºC
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6
-55 ºC
0
0
VIN [V]
25
50
75
100
125
150
175
IOUT [mA]
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Typical performance characteristics
LD59015
Figure 10. VUVLO vs. temperature
Figure 11. ESR vs. COUT
10.00
2.50
turn-off
turn on
ESR at 100 kHz [Ohm]
UVLO Thresholds [V]
2.30
2.10
1.90
1.00
ESR MAX
ESR MIN
0.10
0.01
1.70
1.50
0.00
-40
-20
0
20
40
60
80
100
120
140
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0 10.0
COUT [µF]
Temperature [°C]
Figure 12. Supply voltage rejection vs.
frequency
Figure 13. Supply voltage rejection vs. IOUT
100
90
Supply voltage rejection [db]
1 kHz
Supply Voltage rejection [dB]
90
80
70
60
50
100 Hz
80
10 kHz
70
60
50
VIN = 4.8 V, Vripple pk-pk = 1 V, VO = 3.3 V
40
40
100
1000
f [Hz]
10000
0
100000
40
60
80
100
120
140
IOUT [mA]
Figure 14. ISC vs. VDROP
0.4
20
Figure 15. Line transient (VOUT = 0.8 V)
VIN = VEN
0.35
ISC [A]
0.3
0.25
0.2
0.15
125 ºC
0.1
-40 ºC
0.05
25 ºC
0
0
1
2
3
4
5
6
Vdrop [V]
COUT = 1 µF; VIN = VEN = from 2.4 to 3.3 V; VOUT = 0.8 V;
IOUT = 1 mA; trise = tfall = 25 µs
10/17
DocID17488 Rev 4
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LD59015
Typical performance characteristics
Figure 16. Line transient (VOUT = 3.3 V)
COUT = 1 µF; VIN = VEN = from 4.5 to 5.5 V; VOUT = 3.3 V;
IOUT = 1 mA; trise = tfall = 25 µs
Figure 17. Load transient (VOUT = 0.8 V)
CIN = COUT = 1 µF; VIN = VEN = 2.4 V; VOUT = 0.8 V;
IOUT from 0.1 to 150 mA; trise = tfall = 25 µs
Figure 18. Load transient (VOUT = 3.3 V)
CIN = COUT = 1 µF; VIN = VEN = 4.3 V; VOUT = 3.3 V;
IOUT from 0.1 to 150 mA; trise = tfall = 25 µs
Figure 19. Start-up transient
COUT = 1 µF; VIN = VEN = from 0 to 5.5 V; VOUT = 3.3 V;
IOUT = 150 mA
Figure 20. Enable transient
CIN = COUT = 1 µF; VIN = 4.3; VEN = from 0 to 5.5 V;
VOUT = 3.3 V; IOUT = 1 mA; trise = 25 µs
DocID17488 Rev 4
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17
Package mechanical data
7
LD59015
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.
Figure 21. SOT323-5L drawings
7091413_E
12/17
DocID17488 Rev 4
LD59015
Package mechanical data
Table 6. SOT323-5L mechanical data
mm
Dim.
Min.
Typ.
Max.
A
0.80
1.10
A1
0
0.10
A2
0.80
b
0.15
0.30
c
0.10
0.22
D
1.80
2
2.20
E
1.80
2.10
2.40
E1
1.15
1.25
1.35
0.90
e
0.65
e1
1.30
L
0.26
<
0°
DocID17488 Rev 4
0.36
1
0.46
8°
13/17
17
Packaging mechanical data
8
LD59015
Packaging mechanical data
Figure 22. SOT323-5L tape and reel drawings
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LD59015
Packaging mechanical data
Table 7. SOT323-5L tape and reel mechanical data
mm
Dim.
Min.
Typ.
Max.
A
175
180
185
C
12.8
13
13.2
D
20.2
N
59.5
60
60.5
T
14.4
Ao
2.25
Bo
3.17
Ko
1.2
Po
3.9
4.0
4.1
P
3.9
4.0
4.2
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Revision history
9
LD59015
Revision history
Table 8. Document revision history
Date
Revision
10-May-2010
1
Initial release.
21-Dec-2011
2
Modified: operating input voltage (VIN) min. value Table 5 on page 7.
Availability LD59015C08R code Table 1 on page 1.
06-Jul-2012
3
Updated: Table 1 on page 1.
4
Part number LD59015xx changed to LD59015.
Updated the description in cover page and Section 7: Package mechanical
data.
Added Section 8: Packaging mechanical data.
Minor text changes.
24-Apr-2014
16/17
Changes
DocID17488 Rev 4
LD59015
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