Philips Semiconductors
Product data
CapFREE™ 150 mA, low-noise, ultra low-dropout
regulator with thermal protection
SA57016-XX
GENERAL DESCRIPTION
The CapFREE™ SA57016 is one of a family of unique low dropout
regulators. It needs no external capacitors, offers a low output noise
voltage of 25
µVrms
which eliminates the BYPASS pin, and an
ultra-low dropout voltage of 20 mV max. @ 50 mA output current.
Reverse battery current is extremely low, 0.5
µA
typical.
The CapFREE™ SA57016 is a drop-in replacement for LP2985 in
Chip-Scaled Package with superior performance.
To accommodate high density layouts, it is packaged in a 4-bump
Chip-Scale package (WL-CSP4). It is ideal for all portable and
cellular phone applications.
Additional features include power and thermal shutdown, output
current limitation, external logic-controlled ON-OFF via the PWRON
pin, and reverse battery protection. If you are looking for additional
PowerOK and thermal warning features, please look up SA57017
device for further information.
WL-CSP4
FEATURES
•
CapFREE: No output capacitor needed, stable for all capacitive
loads, regardless of ESR.
•
Wafer level Chip-Scale (WL-CSP4) package
•
Low 25
µVrms
noise without noise bypass capacitor
•
Preset output voltages to 1.25, 1.8, 2.4, 2.6, 2.8, 3.0, and 3.3 V;
other voltages available upon request.
•
Shutdown (standby) current <1
µA
•
Thermal-overload and short-circuit protection
•
Reverse Battery Protection
•
Max line regulation 0.35%/V
•
Max load regulation 0.015%/mA
APPLICATIONS
•
1% output voltage accuracy
•
150 mA maximum output current with current limitation
•
Typical dropout voltage 20 mV max. @ 50 mA output current
•
85
µA
typical ground current
SIMPLIFIED DEVICE DIAGRAM
•
Cordless and mobile phones
•
Industrial and medical equipment
•
Other battery-powered equipment
ON
OFF
PWRON
A2
B2
V
IN
DC
1.6 V to 4.6 V
SA57016-XX
A1
B1
V
OUT
GND
Preset output voltages:
1.25 V to 3.3 V
R
Load
Top view (Wafer-level CSP pin assignments using JEDEC standard matrix)
SL02113
Figure 1. Simplified device diagram.
CapFREE is a trademark of Philips Electronics North America Corporation.
2003 Dec 12
2
Philips Semiconductors
Product data
CapFREE™ 150 mA, low-noise, ultra low-dropout
regulator with thermal protection
SA57016-XX
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
SA57016-XXUK
NAME
WL-CSP4
DESCRIPTION
wafer-level, chip-scale package; 4 bumps (see dimensional drawing)
TEMPERATURE
RANGE
–40 to +85
°C
NOTE:
The device has seven (7) voltage output options, indicated by the
XX
on the Type Number.
XX
12
18
24
26
28
30
33
VOLTAGE (Typical)
1.25 V
1.8 V
2.4 V
2.6 V
2.8 V
3.0 V
3.3 V
PIN CONFIGURATION
PIN DESCRIPTION
BALL
NO.
SYMBOL
GND
PWRON
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 normal operation.
Regulator output. Sources up to 150 mA.
No capacitor required.
Regulator input. V
OUT(nom)
+0.5V to 4.6 V.
Minimum input voltage required is 1.6 V.
No capacitor required.
DESCRIPTION
PWRON
A2
B2
V
IN
A1
A2
SA57016-XX
GND
A1
B1
V
OUT
B1
SL02114
V
OUT
V
IN
Figure 2. Pin configuration, top view (balls are on the bottom)
B2
MAXIMUM RATINGS
SYMBOL
V
IN
V
PWRON
V
OUT
T
amb
T
j
T
stg
P
D
R
th(j-a)
V
IN
to GND voltage
PWRON to GND voltage
OUT to GND voltage
Operating ambient temperature
Junction temperature
Storage temperature
Power dissipation (T
amb
= 25
°C)
Power dissipation degrading factor above 25
°C
= 5.1 mW/°C
Thermal resistance from junction to ambient
PARAMETER
MIN.
–0.3
–0.3
–0.3
–40
–
–65
–
–
MAX.
4.6
4.6
V
IN
+ 0.3
+85
+125
+160
637
140
UNIT
V
DC
V
DC
V
DC
°C
°C
°C
mW
°C/W
2003 Dec 12
3
Philips Semiconductors
Product data
CapFREE™ 150 mA, low-noise, ultra low-dropout
regulator with thermal protection
SA57016-XX
ELECTRICAL CHARACTERISTICS
V
IN
= V
OUT(nom)
+ 0.5 V, T
amb
= –40
°C
to +85
°C,
unless otherwise noted. (Note 1.)
Symbol
V
IN
Parameter
input voltage
output voltage accuracy (Note 2)
1.6 V < V
OUT(nom)
≤
3.3 V;
I
OUT
= 1 mA to 150 mA
T
amb
= +25
°C
–40
°C ≤
T
amb
≤
+85
°C
1.25 V
≤
V
OUT(nom)
≤
1.6 V
I
OUT
= 1 mA
I
OUT
= 150 mA
I
LIM
I
Q
I
RBC
current limit
GND pin current
reverse battery current
Dropout voltage (Notes 2 and 4)
I
OUT
= 50 mA
I
OUT
= 100 mA
I
OUT
= 150 mA
∆V
LNR
line regulation
1.25 V < V
OUT(nom)
≤
2.4 V;
V
out(nom)
+ 0.1 V
≤
V
IN
≤
4.6 V
2.4 V < V
OUT(nom)
≤
3.3 V;
V
out(nom)
+ 0.1 V
≤
V
IN
≤
4.6 V
∆V
LDR
Shutdown
V
IH
V
IL
I
PWRON
I
Q(SHDN)
t
PWRON
PWRON input bias current
Shutdown supply current
PWRON start-up time (Note 3)
V
PWRON
= V
IN
V
OUT
= 0 V
I
OUT
= 1 to 50 mA
PWRON input threshold
V
out(nom)
≤
V
IN
≤
4.6 V
0.7
×
V
IN
–
–
–
–
–
–
1
40
30
–
0.3
×
V
IN
–
–
50
V
V
nA
nA
µs
load regulation
1.25 V < V
OUT(nom)
≤
3.3 V;
I
OUT
= 1 mA to 150 mA
I
OUT
= 1 mA to 150 mA
–3.0
–4.0
160
–
–
–
–
–
–
–
–
–
–
300
250
0.5
–
–
–
–
–
–
2.5
1.5
500
400
–
25
50
75
0.35
0.4
0.015
%
%
mA
µA
µA
mV
mV
mV
%/V
%/V
%/ mA
–1
–3.0
–
–
+1
1.5
%
%
Conditions
Min
V
OUT(nom)
Typ
–
Max
4.6
Units
V
Thermal protection
T
SHDN
∆T
SHDN
Thermal shutdown temperature
Thermal shutdown hysteresis
–
–
163
10
–
–
°C
°C
NOTES:
1. Limits are production tested at worst case ambient temperature (85
°C)
2. 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 (only applicable for
1.6 V < V
OUT(NOM)
≤
3.3 V).
3. Time needed for V
OUT
to reach 95% of V
OUT(nom)
4. Minimum input voltage is 1.6 V if selected the 1.25 V preset output voltage.
2003 Dec 12
4
Philips Semiconductors
Product data
CapFREE™ 150 mA, low-noise, ultra low-dropout
regulator with thermal protection
SA57016-XX
TYPICAL PERFORMANCE CURVES
SA57016-33 (3.3 volt output). V
IN
= V
OUT(nom)
+ 0.5 V; C
OUT
= C
IN
= 0
µF,
T
amb
= –40 to +85
°C
,
unless otherwise specified.
70
60
DROPOUT VOLTAGE (mV)
50
I
OUT
= 100 mA
40
30
I
OUT
= 50 mA
20
10
I
OUT
= 1 mA
0
–40
0
25
AMBIENT TEMPERATURE, T
amb
(°C)
85
1
50
100
150
OUTPUT CURRENT (mA)
DROPOUT VOLTAGE (V)
I
OUT
= 150 mA
70
60
T
amb
= +85
°C
50
T
amb
= +25
°C
40
T
amb
= –40
°C
30
20
10
SL02120
SL02119
Figure 3. Drop-out voltage versus temperature.
Figure 4. Dropout voltage versus output current.
3.4
I
OUT
= 1 mA
3.3
V
IN
, INPUT VOLTAGE (V)
V
IN
, INPUT VOLTAGE (V)
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.6
2.9
3.2
3.5
3.8
4.1
V
OUT
, OUTPUT VOLTAGE (V)
T
amb
= –40
°C
T
amb
= +25
°C
T
amb
= +85
°C
3.4
I
OUT
= 150 mA
3.3
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.7
3.0
3.3
3.6
3.9
4.2
V
OUT
, OUTPUT VOLTAGE (V)
T
amb
= –40
°C
T
amb
= +25
°C
T
amb
= +85
°C
SL02122
SL02121
Figure 5. Input voltage versus output voltage.
Figure 6. Input voltage versus output voltage.
–190
GROUND PIN CURRENT (
µ
A)
–195
1 mA Ld
–200
–205
–210
150 mA Ld
–215
C
IN
= C
OUT
= 0 mF
I
LOAD
= 1 mA to 50 mA
t
rise
= 100 ns
V
IN
= 3.8 V
V
OUT
= 3.3 V
+85
–220
–40
+25
AMBIENT TEMPERATURE, T
amb
(°C)
SL02118
SL02117
Figure 7. Ground pin current versus temperature.
Figure 8. Load transient response.
2003 Dec 12
5
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