Philips Semiconductors
Product data
Low-noise 150 mA linear CMOS regulator
SA57004-XX
GENERAL DESCRIPTION
The SA57004 is a 150 mA, fixed output voltage regulator designed
to provide low noise in battery powered and portable applications.
The output voltage is preset to voltages in the range of 1.8 to
5.0 Volts.
Designed with CMOS process, the SA57004 achieves unequalled
performance in specifications critical to battery-powered designs
such as low supply-current, low power consumption, small size, fast
dynamic response to line and load, precision output, and so on.
Each of these regulators consists of an internal voltage reference,
an error amplifier, resistors, a current limiting circuit and a chip
enable circuit.
The SA57004 series are housed in the small outline 5-lead package
(SOP003).
FEATURES
•
Very low consumption current:
•
High precision output voltage:
±2%
•
Output current capacity: 150 mA
•
Good line regulation: 0.05%/V typ.
•
Low temperature drift co-efficient to V
OUT
:
±100
ppm/°C
•
Built-in current limit circuit: 60 mA typ.
•
Wide operating temperature range: –30 to +85
°C
•
Wide preset output voltage range: 1.8 to 5.0 V
SIMPLIFIED SYSTEM DIAGRAM
SA57004-XX
V
IN
5
APPLICATIONS
1.5
µA
typ. (when not loaded, excluding CE current),
0.1
µA
typ. (when off)
•
Cellular phones, cordless phones and 2-way radios
•
Electronic notebooks, PDAs and palmtop computers
•
Cameras, VCRs and camcorders
•
PCMCIA cards
•
Modems
•
Battery-powered or hand-held instruments
4
V
OUT
R
V
REF
R
10 kΩ
ON/OFF
1
CURRENT
LIMIT
R
2
GND
SL01442
Figure 1. Simplified system diagram.
2003 Oct 15
2
Philips Semiconductors
Product data
Low-noise 150 mA linear CMOS regulator
SA57004-XX
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
SA57004-XXGW
DESCRIPTION
plastic small outline package; 5 leads (see dimensional drawing)
VERSION
SOP003
TEMPERATURE
RANGE
–30 to +85
°C
NOTE:
The device has six voltage output options, indicated by the
XX
on
the Type Number.
XX
18
28
30
32
33
50
VOLTAGE (Typical)
1.8 V
2.8 V
3.0 V
3.2 V
3.3 V
5.0 V
Part number marking
Each package is marked with a four letter code. The first three
letters designate the product. The fourth letter, represented by ‘x’, is
a date tracking code.
Part number
SA57004-18GW
SA57004-28GW
SA57004-30GW
SA57004-32GW
SA57004-33GW
SA57004-50GW
Marking
ADNx
ADPx
ADRx
ADSx
ADTx
ADUx
PIN CONFIGURATION
PIN DESCRIPTION
PIN
SA57004-XX
SYMBOL
ON/OFF
DESCRIPTION
On/Off control pin. Connect CE with V
IN
if not
used.
CE = LOW, output OFF
CE = HIGH, output ON
Device ground.
No connection.
Voltage output.
Voltage input.
1
ON/OFF
1
5
V
IN
GND
2
2
4
V
OUT
GND
NC
V
OUT
V
IN
NC
3
3
4
5
SL01438
Figure 2. Pin configuration.
MAXIMUM RATINGS
SYMBOL
V
IN
I
O
T
oper
T
j
T
j(max)
T
stg
P
Power supply voltage
Output current
Operating temperature
Junction temperature
Maximum junction temperature
Storage temperature
Power dissipation
PARAMETER
MIN.
–0.3
–
–30
–
–
–40
–
MAX.
9.0
150
+85
+125
+150
+125
150
UNIT
V
mA
°C
°C
°C
°C
mW
2003 Oct 15
3
Philips Semiconductors
Product data
Low-noise 150 mA linear CMOS regulator
SA57004-XX
TYPICAL PERFORMANCE CURVES
INPUT/OUTPUT DIFFERENTIAL VOLTAGE (V)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
10
20
30
40
50
I
OUT
, OUTPUT CURRENT (mA)
0.0
0
2
4
V
IN
, INPUT VOLTAGE (V)
6
8
V
OUT
, OUTPUT VOLTAGE (V)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
∆
V
OUT
/
∆
I
OUT
SL01439
SL01441
Figure 3. Input/output differential voltage.
Figure 4. Line regulation.
3.5
V
IN
= 5 V
3.0
V
OUT
, OUTPUT VOLTAGE (V)
2.5
2.0
1.5
1.0
0.5
0.0
0
50
100
150
I
OUT
, OUTPUT CURRENT (mA)
INPUT CURRENT (
µ
A)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
2
4
V
IN
, INPUT VOLTAGE (V)
6
8
SL01440
SL01443
Figure 5. Load regulation.
Figure 6. Input current.
0.5
ON/OFF INPUT CURRENT (
µ
A)
80
70
RIPPLE REJECTION (dB)
V
IN
= 5 V
DC
, 0.5V
P-P(AC)
I
OUT
= 10 mA
0.4
60
50
40
30
20
10
0.3
0.2
0.1
0.0
0
2
4
ON/OFF INPUT VOLTAGE (V)
6
8
0
0.1
1
10
FREQUENCY (kHz)
100
SL01444
SL01445
Figure 7. ON/OFF current versus ON/OFF input voltage.
Figure 8. Ripple rejection.
2003 Oct 15
5
聊聊、笑笑、闹闹
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
