SA57031-25UK [NXP]
Micropower 150 mA, low-noise, low dropout linear regulator with on/off; 微150毫安，低噪声，具有开/关的低压差线性稳压器
| 型号： | SA57031-25UK |
| 厂家： | 
NXP |
| 描述： | Micropower 150 mA, low-noise, low dropout linear regulator with on/off |
| 文件： | 总13页 (文件大小：163K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
SA57031-XX
Micropower 150 mA, low-noise, low dropout
linear regulator with on/off
Product data
2003 Jun 23
Supersedes data of 2003 Feb 24
Philips
Semiconductors
Philips Semiconductors
Product data
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
SA57031-XX
GENERAL DESCRIPTION
The SA57031 is a 150 mA, fixed output voltage regulator designed
to provide very low dropout voltage and low noise in battery
powered and portable applications. The output voltage is preset to
voltages between 1.8 to 5.0 Volts, in 100 mV increments.
The SA57031 achieves excellent performance in all specifications
such as excellent power supply ripple rejection at low frequency, low
supply-current, low dropout voltage, low power consumption,
extremely small size with chip scaled package (CSP), extremely low
output noise voltage, very fast start-up response time, precision
output, fast dynamic response to line and load regulation, etc. This
regulator consists of an internal voltage reference, and current limit.
Bottom View
The SA57031 is housed in a WL-CSP4 package (see dimensional
drawing for layout).
• Low Temperature Drift Co-efficient to V : ±100 ppm/°C
• Built-in Current Limiter
• Wide Operating Temperature Range: –40 to +85 °C
FEATURES
O
• Many Preset Output Voltages: 1.8 to 5.0 V in 0.1 V increments
• Wafer-level chip scale package (WL-CSP4)
• Extremely low PSRR: 80 dB typical at 1 kHz
• Low Dropout Voltage: 100 mV (typ) @ 50 mA output current
• Very Low Consumption Current: 100 mA typ. (when not loaded),
0.1 mA max. (when off)
APPLICATIONS
• Cellular Phones, Cordless Phones and 2-way Radios
• Electronic Notebooks, PDAs and Palmtop Computers
• Cameras, VCRs and Camcorders
• PCMCIA Cards
• High precision Output Voltage: ±2%
• Output Current Capacity: 150 mA (typ)
• Low Noise: 30mVrms @ 10 Hz to 100 kHz
• Good Line Regulation: 0.01%/V typ.
• Good Load Regulation: 0.003%/mA typ.
• Modems
• Battery-powered or Hand-held Instruments
SIMPLIFIED SYSTEM DIAGRAM (BOTTOM VIEW)
V
I
ON
OFF
A2
A1
B2
B1
C
I
+
–
DC
2.2 µF
2.0 V TO 6.0 V
SA57031-XX
GND
V
O
R
LOAD
Preset output voltages:
1.8 V to 5.0 V
V
C
O
(in 100 mV increments)
SL02001
Figure 1. Simplified system diagram.
2
2003 Jun 23
853-2361 28634
Philips Semiconductors
Product data
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
SA57031-XX
ORDERING INFORMATION
PACKAGE
TEMPERATURE
RANGE
TYPE NUMBER
NAME
DESCRIPTION
SA57031-XXUK
WL–CSP4
wafer level, chip-scale package; 4 bumps
–40 to +85 °C
NOTE:
PIN DESCRIPTION
The device has five voltage output options, indicated by the XX on
the Type Number. Other voltages, between 2.5 to 5.0 V in 100 mV
increments, are available on request.
PIN SYMBOL
DESCRIPTION
A1
B1
B2
A2
GND
VO
Device ground
Voltage output
Voltage input
XX
18
24
28
VOLTAGE (Typical)
VI
1.8 V
2.4 V
2.8 V
ON/OFF Control pin. Connect to VI if not used.
PIN CONFIGURATION (TOP VIEW)
ON/OFF
V
V
A2
B2
I
SA57031-XX
A1
B1
GND
O
SA00633
Figure 2. Pin configuration.
MAXIMUM RATINGS
Parameter
Symbol
Min
Max
Unit
Tstg
Toper
VI
Storage temperature range
–40
–40
–0.3
–
+150
+85
+7
°C
°C
Operating Temperature Range
Supply voltage
V
IO
Output Current
200
190
mA
mW
P
Power dissipation
–
3
2003 Jun 23
Philips Semiconductors
Product data
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
SA57031-XX
CHARACTERISTICS
Tamb = 25 °C; VI = V (nom) +1 V; VON/OFF = 2 V; IO = 1 mA unless otherwise specified.
O
SYMBOL
PARAMETER
CONDITIONS
MIN.
–
TYP.
45
MAX.
100
–
UNIT
I
= 0 mA
µA
I
No-load input current
O
CC
I
= 50 mA
= 150 mA
–
55
O
I
–
60
–
O
I
(OFF)
Input current (off)
Quiescent Current
Line regulation
VON/OFF = 0.25 V
= 0 to 150 mA
0.1
100
5
1
µA
µA
–
CC
Iq
I
O
190
10
25
50
70
–
∆V
V = VO +0.5 V to 6 V
I
mV
–
LNR
LDR
I
O
I
O
I
O
= 1 to 50 mA
= 1 to 100 mA
= 1 to 150 mA
10
–
20
∆V
Load regulation
mV
–
30
–
∆VO/∆T
VO Temperature coefficient
Tj = –30 to +85 °C
ppm/°C
–
–
–
f = 1 kHz; I = 1 mA; Vripple = 0.5 V;
O
80
70
–
V
O
= 1.8 to 4.0 V
PSRR
Vn
Power supply ripple rejection
dB
f = 1 kHz; I = 1 mA; Vripple = 0.5 V;
–
–
O
V
O
= 4.1 to 5.0 V
Output noise voltage
fBW = 20 to 80 kHz; C = 2.2 µF
30
30
–
µVrms
mA
–
–
–
–
O
I
Output short-circuit current
V = VO +1 V ; VO = 0 V
I
ON/OFF
V
ON/OFF HIGH threshold
voltage
1.5
VI
V
ON/OFF(H)
V
ON/OFF LOW threshold voltage
ON/OFF Pull-down resistance
Output voltage (nominal)
Dropout voltage
0
2.5
x0.98
–
0.25
15
V
MΩ
V
–
ON/OFF(L)
R
5
ON/OFF
V
V
nom
0.25
0.24
0.23
x1.02
0.35
0.29
0.26
O
V
O
V
O
V
O
= 2.0 to 2.3
= 2.4 to 2.7
= 2.8 to 5.0
V
dropout
–
–
PRESET OUTPUT VOLTAGES
Part Number
SA57031-25UK
Min
Typ
Max
2.450
2.744
2.940
3.234
3.528
2.500
2.800
3.000
3.300
3.600
2.550
2.856
3.060
3.366
3.672
SA57031-28UK
SA57031-30UK
SA57031-33UK
SA57031-36UK
4
2003 Jun 23
Philips Semiconductors
Product data
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
SA57031-XX
TYPICAL PERFORMANCE CURVES
Shown for the SA57031-28UK only; T
= 25 °C; V = V + 1 V; V
= V ; C = 2.2 µF, C = 2.2 µF unless otherwise specified
On/Off I in O
amb
I
O
3.0
2.5
2.0
1.5
1.0
0.5
0
150
100
50
I
O
= 1mA
I
= 100 mA
O
0
I
O
= 30 mA
–50
–100
–150
0
1
2
3
4
5
6
0
50
100
150
OUTPUT CURRENT I (mA)
O
INPUT VOLTAGE V (V)
I
SL01970
SL01973
Figure 3. Output voltage versus input voltage.
Figure 6. Load regulation versus load current.
V = 2.6 V, I = 10 mA
I
O
50
45
40
35
30
25
20
15
10
5
0.4
0.3
0.2
0.1
0
0
0
1
2
3
4
5
6
0
50
100
150
OUTPUT CURRENT I (mA)
O
INPUT VOLTAGE V (V)
I
SL01971
SL01974
Figure 4. No-load input current versus input voltage.
Figure 7. Dropout voltage versus output current.
V = 3.8 V
I
I
O
= 30 mA
1.0
0.8
3.0
2.5
2.0
1.5
1.0
0.5
0
0.6
V = 5.0 V
I
0.4
V = 6.0 V
I
0.2
–0.0
–0.2
–0.4
–0.6
–0.8
–1
3
3.5
4.0
4.5
5.0
5.5
6.0
0
100
200
300
400
INPUT VOLTAGE V (V)
OUTPUT CURRENT I (mA)
O
I
SL01972
SL01975
Figure 5. Line regulation versus input voltage.
Figure 8. Current limit versus output current.
5
2003 Jun 23
Philips Semiconductors
Product data
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
SA57031-XX
100
90
80
70
60
50
40
30
20
10
0
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
IO = 100 mA
= 150 mA
I
O
I
O
= 30 mA
I
O
= 1 mA
0
25
50
75
100
125
150
0.01
0.10
1.00
10.00
100.00
1000.00
OUTPUT CURRENT (mA)
FREQUENCY (kHz)
SL01976
SL01978
Figure 9. Ground pin current.
Figure 11. Ripple rejection.
2.84
2.82
2.80
2.78
2.76
2.74
2.72
V
= 2.8 V
O
10 µS
V
= 2 V
on/off
–50
–25
0
25
50
75
100
125
TEMPERATURE T(°C)
SL01977
SL01991
Figure 10. Output voltage versus ambient temperatures.
Figure 12. On/off control pin.
6
2003 Jun 23
Philips Semiconductors
Product data
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
SA57031-XX
I
O
= 100 mA
V = 4.8 V
I
V = 3.8 V
I
I
O
= 0.1 mA
200 µS
V = 2 V/div
I
500 µS
C
= 1.0 µF
= 50 mA/div
O
I
O
V
= 10 mV/div
O
V
= 10 mV/div
O
SL01992
SL01994
Figure 13. Line transient response.
Figure 15. Load transient response.
I
O
= 100 mA
I
O
= 0.1 mA
C
= 2.2 µF
= 50 mA/div
500 µS
O
I
O
V
= 10 mV/div
O
SL01993
Figure 14. Load transient response.
7
2003 Jun 23
Philips Semiconductors
Product data
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
SA57031-XX
TECHNICAL DISCUSSION
As illustrated in Figure 16, the SA57031 consists of a band-gap
voltage reference, an error amplifier, P-channel pass transistor,
current limit circuit and an internal feedback voltage divider. The
output voltage is fed back through an internal resistor voltage divider
connected to the VO pin.
voltage and amplifies the difference. If the feedback voltage is lower
than the reference voltage, the pass transistor’s gate is pulled lower,
which allows more current to pass to the output and increase the
output voltage. If the feedback voltage is too high, the pass
transistor gate is pulled up, allowing less current to pass to the
output, resulting in a decrease in output voltage.
The reference is connected to the error amplifier’s inverting input.
The error amplifier compares the reference with the feedback
SA57031-XX
V
I
3
2
V
O
V
REF
CURRENT
LIMITER
ON/OFF
4
1
GND
SA00634
Figure 16. Block diagram (bottom view).
8
2003 Jun 23
Philips Semiconductors
Product data
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
SA57031-XX
good frequency characteristics is needed. Set it as close to the
circuit as possible and make the wiring as short as possible. The
value of the output capacitance has to be at least 2.2µF and has to
have B-type temperature characteristics.
APPLICATION INFORMATION
The following points have to be kept in mind for good performance
while using these devices.
Input Capacitor
ON/OFF (Chip Enable) Pin
An input capacitor of 2.2 µF is required between the SA57031 input
pin and the circuit ground. This capacitor must be located as close
as possible to the VI or GND pin (not more than 1 cm away from the
pin) and returned to a clean analog ground. Any good quality
ceramic, tantalum, or film capacitor will work.
The ON/OFF pin must be actively terminated, not floating. If the
function is not needed, the pin should be tied to VI to permanently
enable the device.
Line Impedance of VI and GND
The VI and GND lines should be sufficiently wide to minimize
impedance. If the impedance of these lines is high, there is a chance
to pick up noise or malfunction.
Output Capacitor
Phase compensation is used for securing stable operation even if
the load current varies. For this reason, an output capacitor with
ON/OFF PIN MUST BE ACTIVELY TERMINATED
V
ON
I
OFF
A2
A1
B2
B1
C
I
+
–
DC
2.2 µF
2.0 V TO 6.0 V
SA57031-XX
GND
V
O
A
R
LOAD
V
C
O
SA00632
C
C
= 2.2 mF for V = 2.5 to 5.0 V
O
O
O
= 4.7 mF for V = 1.8 to 2.5 V
O
Figure 17. Typical application circuit.
9
2003 Jun 23
Philips Semiconductors
Product data
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
SA57031-XX
PACKING METHOD
The SA57031-XX is packed in reels, as shown in Figure 18.
BARCODE LABEL
BAG
ESD PRINT
DRY-AGENT
RELATIVE HUMIDITY
INDICATOR
TAPE
REEL ASSEMBLY
MOISTURE CAUTION
PRINT
GUARD BAND
BARCODE LABEL
ESD EMBOSSED
PRINTED PLANO BOX
PRINTED ESD WARNING
SPACE FOR ADDITIONAL LABEL
BARCODE LABEL
PRE-PRINTED HYATT PATENT
DRYPACK ID STICKER
PRINTED PLANO BOX
QA SEAL
SL01962
Figure 18. Tape and reel packing method
10
2003 Jun 23
Philips Semiconductors
Product data
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
SA57031-XX
TAPE PULL OUT DIRECTION
P2
P0
D0
T
E
F
W
B0
P1
K
A0
NOTES:
TAPE PULL OUT DIRECTION
1. IC pull out direction
TOP VIEW
B HOUSING
2. Carrier tape material:
paper type, with ESD protection.
3. The length of the leader:
More than 400 mm which include 40 holes or more without any products.
IT’s must have the top cover tape.
4. The length of trailer:
More than 40 mm which include without any products.
IT’s must have the top copy tape.
The end of trailer must be detached from reel.
UNIT
A0
B0
W
F
E
P1
P2
P0
ΘD0
T
K
0.90
1.40
8.0
3.5
1.75
4.0
2.0
4.0
1.55
0.60
0.58
mm
"0.03 "0.03
"0.1 "0.05 "0.05 "0.05 "0.05 "0.1 "0.03 "0.03 "0.03
SL02002
11
2003 Jun 23
Philips Semiconductors
Product data
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
SA57031-XX
WL-CSP4: wafer level, chip-scale package; 4 bumps
X3
X2
X4
X5
X6
X8
X7
X1
X9
X10
BUMP
DIMENSIONS (mm are the original dimensions)
UNIT
X1
X2
X3
X4
X5
X6
0.212
X7
X8
X9
X10
1.32
1.26
0.82
0.76
0.23
0.13
0.42
0.38
0.10
0.06
mm
0.5
0.5
0.866
0.433
SL02098
12
2003 Jun 23
Philips Semiconductors
Product data
Micropower 150 mA, low-noise, low dropout linear
regulator with on/off
SA57031-XX
REVISION HISTORY
Rev
Date
Description
_2
20030623
Product data (9397 750 11664); ECN 853-2361 30063 dated 23 June 2003.
Supersedes SA57031-XX_1 (9397 750 11001) of 2003 Feb 24.
Modifications:
• WL-CSP4 package outline dimensional drawing modified.
_1
20030224
Product data (9397 750 11001); ECN 853-2361 28634 dated 2002 Jul 18
Data sheet status
Product
status
Definitions
[1]
Level
Data sheet status
[2] [3]
I
Objective data
Development
This data sheet contains data from the objective specification for product development.
Philips Semiconductors reserves the right to change the specification in any manner without notice.
II
Preliminary data
Qualification
Production
This data sheet contains data from the preliminary specification. Supplementary data will be published
at a later date. Philips Semiconductors reserves the right to change the specification without notice, in
order to improve the design and supply the best possible product.
III
Product data
This data sheet contains data from the product specification. Philips Semiconductors reserves the
right to make changes at any time in order to improve the design, manufacturing and supply. Relevant
changes will be communicated via a Customer Product/Process Change Notification (CPCN).
[1] Please consult the most recently issued data sheet before initiating or completing a design.
[2] The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL
http://www.semiconductors.philips.com.
[3] For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
Definitions
Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see
the relevant data sheet or data handbook.
Limitingvaluesdefinition— Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting
values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given
in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no
representation or warranty that such applications will be suitable for the specified use without further testing or modification.
Disclaimers
Life support — These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be
expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree
to fully indemnify Philips Semiconductors for any damages resulting from such application.
Right to make changes — Philips Semiconductors reserves the right to make changes in the products—including circuits, standard cells, and/or software—described
or contained herein in order to improve design and/or performance. When the product is in full production (status ‘Production’), relevant changes will be communicated
viaaCustomerProduct/ProcessChangeNotification(CPCN).PhilipsSemiconductorsassumesnoresponsibilityorliabilityfortheuseofanyoftheseproducts,conveys
nolicenseortitleunderanypatent, copyright, ormaskworkrighttotheseproducts, andmakesnorepresentationsorwarrantiesthattheseproductsarefreefrompatent,
copyright, or mask work right infringement, unless otherwise specified.
Koninklijke Philips Electronics N.V. 2003
Contact information
All rights reserved. Printed in U.S.A.
For additional information please visit
http://www.semiconductors.philips.com.
Fax: +31 40 27 24825
Date of release: 06-03
9397 750 11664
For sales offices addresses send e-mail to:
sales.addresses@www.semiconductors.philips.com.
Document order number:
Philips
Semiconductors
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