INTEGRATED CIRCUITS
SA57000-XX
CapFREE™ 150 mA, low-noise, low dropout
regulator with thermal protection
Product data
Supersedes data of 2003 Apr 01
2003 Apr 30
Philips
Semiconductors
Philips Semiconductors
Product data
CapFREE™ 150 mA, low-noise, low dropout regulator
with thermal protection
SA57000-XX
GENERAL DESCRIPTION
The CapFREE™ SA57000 is the first in a new family of unique low
dropout regulators. It needs no external capacitors, offers a low
output noise voltage of 30
µV
RMS
, and an ultra-low dropout voltage
of 55 mV @ 50 mA output current. To accommodate high density
layouts, it is packaged in the small footprint 5 leaded SOT23-5 (SO5)
and a 5-bump Wafer Level Chip-Scale package (WL-CSP5). It is ideal
for all portable and cellular phone applications.
Additional features include power and thermal shutdown, output
current limitation, power OK status, thermal warning, and external
logic-controlled on-off via the PWRON pin.
WL-CSP5
SOT23-55
FEATURES
•
CapFREE: No output capacitor needed, stable for all capacitive
loads, regardless of ESR
•
5 leaded SOT23-5 (SO5) and Wafer Level Chip-Scale (WL-CSP5)
packages
•
Low 30
µV
RMS
noise without noise bypass capacitor
•
Preset output voltages to 2.5 V, 2.8 V, 2.9 V, 3.0 V, 3.1 V, 3.3 V
and 3.6 V; other voltages available upon request. 2% output
voltage accuracy
•
Typical dropout voltage 55 mV @ 50 mA output current
•
85
µA
typical ground current
•
Shut-down (standby) current < 1
µA
•
Thermal-overload and short-circuit protection
•
PWROK pin: both power status and thermal warning indicator
•
PWRON pin offers logic-controlled shutdown
•
Maximum line regulation: 0.1%/V
•
Maximum load regulation: 0.02%/mA.
APPLICATIONS
•
150 mA maximum output current with current limitation
•
Cordless and mobile phones
•
Industrial and medical equipment
•
Other battery-powered equipment.
SIMPLIFIED SYSTEM DIAGRAM
SA57000
PWRON
3
PWRON
OVER 144
°C
(POWER/THERMAL SHUTDOWN)
PWRON
TEMPERATURE
SENSOR
OVER 127
°C
(POWER/THERMAL WARNING)
LOGIC
CONTROL
4
PWROK
PWRON
BAND
GAP
LOW-PASS
FILTER
OUTPUT
AMP.
5
V
OUT
GND
2
PWRON
BIAS
NETWORK
V
IN
1
SA00557
Figure 1. Simplified system diagram.
CapFREE is a trademark of Philips Electronics North America Corporation.
2003 Apr 30
2
Philips Semiconductors
Product data
CapFREE™ 150 mA, low-noise, low dropout regulator
with thermal protection
SA57000-XX
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
SA57000-XXD
SA57000-XXUK
NAME
SOT23-5,
SO5
WL-CSP5
DESCRIPTION
plastic small outline package; 5 leads (see dimensional drawing)
wafer level, chip-scale package; 5 bumps (see dimensional drawing)
VERSION
SOT680-1
TEMPERATURE
RANGE
–40 to +85
°C
–40 to +85
°C
NOTE:
The device has seven voltage output options, indicated by the
XX
on the Type Number.
XX
25
28
29
30
31
33
36
VOLTAGE (Typical)
2.5 V
2.8 V
2.9 V
3.0 V
3.1 V
3.3 V
3.6 V
PIN CONFIGURATION
V
IN
1
5
V
OUT
GND
2
PWRON
SA57000-XXD
3
4
PWROK
TOP VIEW
V
OUT
A3
SA57000-XXUK
B2
C3
PWROK
GND
V
IN
A1
C1
PWRON
TOP VIEW
(BALLS ARE ON THE BOTTOM)
SA00556
Figure 2. Pin configurations.
PIN DESCRIPTION
PIN
1
2
3
4
BALL
A1
B2
C1
C3
SYMBOL
V
IN
GND
PWRON
PWROK
DESCRIPTION
Regulator input. V
OUT(nom)
+ 0.5 V to 6.5 V. No bypass capacitor required.
Ground.
Power-on input. Active-HIGH. A logic LOW powers down the regulator. The shutdown quiescent current is
typically 50 nA. Connect to V
IN
for manual operation.
Power OK indicator, including thermal warning. Connect a 10 kΩ resistor between PWROK and V
OUT
.
Active-LOW open-drain output indicates an out-of-regulation condition when power falls typically 6% below
VOUT(nom), or thermal warning (trips at 127
°C ±
2
°C).
Regulator output. Sources up to 150 mA. No bypass capacitors required.
5
A3
V
OUT
MAXIMUM RATINGS
SYMBOL
V
IN
V
PWRON
V
OUT
T
amb
T
j
T
stg
P
R
th(j-a)
PARAMETER
V
IN
to GND voltage
PWRON to GND voltage
OUT to GND voltage
Operating ambient temperature
Junction temperature
Storage temperature
Power dissipation (Derating factor above 25
°C)
Thermal resistance from junction to ambient
T
amb
= 25
°C
CONDITIONS
MIN.
–0.3
–0.3
–0.3
–40
–
–65
–
–
MAX.
6.5
6.5
V
IN
+ 0.3
+85
+125
+160
637
140
UNIT
V
DC
V
DC
V
DC
°C
°C
°C
mW
°C/W
2003 Apr 30
3
Philips Semiconductors
Product data
CapFREE™ 150 mA, low-noise, low dropout regulator
with thermal protection
SA57000-XX
CHARACTERISTICS
V
IN
= V
OUT(nom)
+ 0.5 V. (Note 1.)
SYMBOL
V
IN
PARAMETER
input voltage
output voltage accuracy
2
I
OUT
= 1 mA
T
amb
= +25
°C
–40
°C ≤
T
amb
≤
+85
°C
CONDITIONS
MIN.
V
OUT(nom)
–
–2.0
160
I
OUT
= 1 mA to 150 mA
I
OUT
= 1 mA
I
OUT
= 50 mA
I
OUT
= 150 mA
∆V
LNR
∆V
LDR
e
n
Shutdown
V
IH
V
IL
I
PWRON
PWRON input threshold
(HIGH ON-state)
PWRON input threshold
(HIGH ON-state)
PWRON input bias current
V
IN
→
V
OUT(nom)
→
6.5 V
V
IN
→
V
OUT(nom)
→
6.5 V
V
PWRON
= V
IN
T
amb
= +25
°C
T
amb
= +85
°C
V
OUT
= 0 V
T
amb
= +25
°C
T
amb
= +85
°C
I
OUT
= 1 mA, C
OUT
= 100 nF
T
amb
= +25
°C
T
amb
= –40 to +85
°C
0.7
×
V
IN
–
–
–
–
0.3
×
V
IN
V
V
line regulation
load regulation
output voltage noise
V
IN
= (V
OUT
+ 0.1 V) to 5.5 V; I
OUT
= 20 mA
I
OUT
= 1 mA to 150 mA
f = 10 Hz to 100 kHz, C
OUT
= 10
µF
–
–
–
–
–
–
–
TYP.
–
±1
–
300
85
1
55
165
–
0.01
30
MAX.
6.5
–
2.0
–
150
–
120
–
0.1
0.02
–
UNIT
V
%
%
mA
µA
mV
mV
mV
%/V
%/mA
µV
RMS
I
LIM
I
Q
current limit
ground pin current
dropout voltage
3
–
–
–
–
–
–
0.01
0.05
0.05
0.2
25
35
1
–
1
1
100
200
µA
µA
µA
µA
µs
µs
I
Q(SHDN)
shutdown supply current
t
PWRON
power-on start-up time
4
Thermal protection (Note 2)
T
SHDN
∆T
SHDN
thermal shut-down temperature
thermal shut-down hysteresis
–
–
144
13
–
–
°C
°C
PWROK output (power and temperature OK) (Note 2)
PWROK trip temperature
PWROK trip temperature
hysteresis
PWROK trip as percentage of
V
OUT(nom)
PWROK hysteresis as
percentage of V
OUT(nom)
PWROK output (when tripped)
I
SINK
= 0.5 mA
–
–
–3.5
–
–
127
12
–6
2
0.1
–
–
–8
–
0.4
°C
°C
%
%
V
NOTES:
1. Limits are production tested at T
amb
= +25
°C.
All devices are 100% production tested at 25
°C.
Limits over the operating tempreature are
guaranteed by design.
2. Accuracy
±2 °C
over temperature range guaranteed by design and characterization.
3. The dropout voltage is defined as V
IN
– V
OUT,
where V
OUT
is 100 mV below the value of V
OUT
for V
IN
= V
OUT
+ 0.5 V.
4. Time needed for V
OUT
to reach 95% of V
OUT(nom)
.
2003 Apr 30
4
Philips Semiconductors
Product data
CapFREE™ 150 mA, low-noise, low dropout regulator
with thermal protection
SA57000-XX
TYPCIAL PERFORMANCE CURVES
Measurements taken with the SA57000-33 (3.3 volt output).
3.40
I
LOAD
= 50 mA
V
IN
= V
OUT(nom)
+ 0.5 V
V
OUT
, OUTPUT VOLTAGE (V)
GROUND CURRENT (
µ
A)
3.38
80
100
3.36
60
3.34
40
3.32
20
V
IN
= V
OUT(nom)
+ 0.5 V
I
LOAD
= 50 mA
3.30
–40
–20
0
20
40
60
80
100
0
–40
–20
0
20
40
60
80
100
T
amb
, TEMPERATURE
〈°C)
T
amb
, TEMPERATURE
〈°C)
SL01515
SL01516
Figure 3. Output voltage versus temperature.
Figure 4. Ground current versus temperature.
0
0
LOAD CURRENT = 50 mA
–100
GROUND CURRENT (
µ
A)
GROUND CURRENT (
µ
A)
2.0
3.0
4.0
5.0
6.0
–100
–200
–200
–300
–300
–400
–400
–500
–500
–600
1.0
–600
1.0
2.0
3.0
4.0
5.0
6.0
V
IN
, INPUT VOLTAGE (V)
V
IN
, INPUT VOLTAGE (V)
SL01517
SL01518
Figure 5. Ground current versus input voltage (no load).
Figure 6. Ground current versus input voltage with load.
200
SHUTDOWN
TEMPERATURE
I
OUT
, OUTPUT CURRENT (mA)
155
150
TEMPERATURE (
°
C)
150
I = 150 mA
100
I = 100 mA
I = 50 mA
50
T
amb
= +85
°C
0
0
0.5
1.0
1.5
V
IN
– V
OUT
(V)
2.0
2.5
3.0
145
140
135
T
j(max)
= +140
°C
T
amb
= +85
°C
130
0
0.5
1.0
1.5
V
IN
– V
OUT
(V)
2.0
2.5
3.0
SL01576
SL01577
Figure 7. T
j
versus V
IN
– V
OUT
for 3 output currents.
Figure 8. Maximum I
OUT
versus V
IN
– V
OUT
.
2003 Apr 30
5
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