DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µ
PC29S00 Series
LOW DROPOUT VOLTAGE REGULATOR WITH ON/OFF FUNCTION
The
µ
PC29S00 series is a low dropout regulator which has 100 mA capable for the output current. This series
features ON/OFF function to control output voltage.
The
µ
PC29S00 series is suitable for NEC’s single chip microcontroller which have on-chip flash memory. The
µ
PC29S00 series is use of erasing and writing data on its flash memory.
FEATURES
• ON/OFF control function (Active high)
• Output current excess of 100 mA
• Surface mount device package
: 4-pin plastic SIP (TO-126 Gullwing) (7.8 V output)
8-pin plastic SOP (225mil) (7.8 V output, 10 V output)
• High accuracy output voltage :
±2%
(7.8 V output)
–2% to +1% (10 V output)
• On-chip all kinds of protection circuit
ORDERING INFORMATION
Part Number
Package
4-pin plastic SIP (TO-126)
4-pin plastic SIP (TO-126 Gullwing)
8-pin plastic SOP (225 mil)
8-pin plastic SOP (225 mil)
Output Voltage
7.8 V
7.8 V
7.8 V
10 V
µ
PC29S78H
µ
PC29S78TA
µ
PC29S78GR
µ
PC29S10GR
PIN CONFIGURATIONS (Marking Side)
TO-126
•
µ
PC29S78H
TO-126 Gullwing
•
µ
PC29S78TA
8-pin plastic SOP (225mil)
•
µ
PC29S78GR
•
µ
PC29S10GR
INPUT
NC
1
2
3
4
1: INPUT
2: ON/OFF
3: GND
4: OUTPUT
1
2
3
4
8
7
6
5
OUTPUT
NC
GND
NC
ON/OFF
NC
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for availability
and additional information.
Document No. G12905EJ4V0DS00 (4th edition)
Date Published August 1999 N CP(K)
Printed in Japan
The mark
shows major revised points.
©
1997
µ
PC29S00 Series
BLOCK DIAGRAM
INPUT
Start-up
circuit
Error
amp.
ON/OFF
ON/OFF
control circuit
Saturation
protection
Reference
voltage
Thermal
shutdown
Over current
protection
Drive
circuit
OUTPUT
GND
ABSOLUTE MAXIMUM RATINGS (T
A
= 25
°
C, unless otherwise specified.)
Rating
Parameter
Input Voltage
Internal Power Dissipation
Operating Ambient Temperature
Operating Junction Temperature
Storage Temperature
Thermal Resistance (Junction to Ambient)
Symbol
V
IN
P
T
Note
T
A
T
J
T
stg
R
th (J-A)
104
1.2
–30 to +85
–30 to +150
–55 to +150
260
µ
PC29S78H, 29S78TA
20
µ
PC29S78GR, 29S10GR
Unit
V
0.48
W
°C
°C
°C
°C/W
Note
T
A
≤
25°C, Internally limited
When operating junction temperature rises up to 150°C, the internal circuit shutdown output voltage.
Caution Exposure to Absolute Maximum Ratings for extended periods may affect device reliability;
exceeding the ratings could cause permanent damage. The parameters apply independently. The
device should be operated within the limits specified under DC and AC Characteristics.
2
Data Sheet G12905EJ4V0DS00
µ
PC29S00 Series
TYPICAL CONNECTION
ON/OFF
D
1
INPUT
µ
PC29S00
OUTPUT
Note
+
D
2
C
IN
C
OUT
C
IN
: 0.1 to 0.47
µ
F. Be sure to connect to prevent abnormal oscillation. For using capacitors, film capacitors
whose voltage and temperature characteristics are excellent are recommended. Take care that some
monolithic ceramic capacitor is inferior in the temperature and voltage characteristics. When using the
monolithic ceramic capacitor, the C
IN
needs to be held these capacities in voltage and temperature used.
C
OUT
: 10
µ
F or higher. Be sure to connect to prevent oscillation and to improve the transient load stabilization.
Remark
Connect the C
IN
and C
OUT
to IC pins as close as possible (2 cm or less).
D
1
D
2
: Need for V
O
> V
IN
: Need a shottky barrier diode for V
O
< GND.
Note
When output is off (V
ON/OFF
= low level), OUTPUT pin should not be supplied higher voltage than V
IN
voltage
from external.
Caution When using the
µ
PC29S78GR and
µ
PC29S10GR, design your circuit and mounting with consid-
eration for heat radiation.
Data Sheet G12905EJ4V0DS00
3
µ
PC29S00 Series
RECOMMENDED OPERATING CONDITIONS
Parameter
Input Voltage
Symbol
V
IN
Condition
MIN.
8.8
11
0
–30
–30
TYP.
MAX.
18
18
100
+85
+125
Unit
V
V
mA
°C
°C
µ
PC29S78
µ
PC29S10
Output Current
Operating Ambient Temperature
Operating Junction Temperature
I
O
T
A
T
J
Caution If the Absolute Maximum Rating is not exceeded, there is no problem for using recommended
operating range or more. Use and evaluate the
µ
PC29S00 Series since the leeway is decreased
with the Absolute Maximum Rating.
Moreover, the recommended operating range is not
prescribed to use when all parameters are maximum value.
ELECTRICAL CHARACTERISTICS
µ
PC29S78 (V
IN
= 12 V, I
O
= 50 mA, V
ON/OFF
= 5 V, T
J
= 25
°
C, unless otherwise specified.)
Parameter
Output Voltage
Symbol
V
O
8.5 V
≤
V
IN
≤18
V,
0 mA
≤
I
O
≤
50 mA,
0°C
≤
T
J
≤
+125°C
0 mA
≤
I
O
≤
100 mA,
0°C
≤
T
J
≤
+125°C
Line Regulation
Load Regulation
Quiescent Current
REG
IN
REG
L
I
BIAS
8.8 V
≤
V
IN
≤
18 V
0 mA
≤
I
O
≤
100 mA
I
O
= 0 mA
I
O
= 100 mA
Start-up Quiescent Current
I
BIAS(s)1
I
BIAS(s)2
Quiescent Current Change
V
IN
= 7.3 V, I
O
= 0 mA
V
IN
= 7.3 V, I
O
= 100 mA
8.8 V
≤
V
IN
≤
18 V,
0°C
≤
T
J
≤
+125°C
10 Hz
≤
f
≤
100 kHz
f = 120 Hz, 8.8 V
≤
V
IN
≤
13.5 V
I
O
= 100 mA, 0°C
≤
T
J
≤
+125°C
V
IN
= 9.8 V
V
IN
= 18 V
I
O
= 5 mA, 0°C
≤
T
J
≤
+125°C
150
250
250
–0.4
42
160
51
1.0
400
7.56
8.04
Conditions
MIN.
7.64
7.56
TYP.
7.8
MAX.
7.96
8.04
Unit
V
22
21
3.0
11
10
75
75
5.0
25
20
50
10
mV
mV
mA
mA
mA
mA
∆
I
BIAS
V
n
R·R
V
DIF
I
O peak
I
O short
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Peak Output Current
Short Circuit Current
Temperature Coefficient of Output
Voltage
ON/OFF Voltage
µ
V
r.m.s.
dB
V
mA
mA
mV/°C
∆
V
O
/
∆
T
V
ON/OFF1
V
ON/OFF2
V
IN
= 12 V, I
O
= 10 mA
V
IN
= 12 V, I
O
= 0 mA
V
ON/OFF
= 2.7 V, I
O
= 0 mA
V
ON/OFF
= 5 V, I
O
= 0 mA
V
ON/OFF
= 0 V, I
O
= 0 mA
0.8
1.8
1.6
250
450
2.0
V
V
ON/OFF Current
I
ON/OFF1
I
ON/OFF2
450
800
10
µ
A
µ
A
µ
A
Standby Current
I
BIAS OFF
4
Data Sheet G12905EJ4V0DS00
µ
PC29S00 Series
µ
PC29S10 (V
IN
= 12 V, I
O
= 50 mA, V
ON/OFF
= 5 V, T
J
= 25
°
C, unless otherwise specified.)
Parameter
Output Voltage
Symbol
V
O
11 V
≤
V
IN
≤
18 V,
0 mA
≤
I
O
≤
50 mA,
0°C
≤
T
J
≤
+125°C
0 mA
≤
I
O
≤
100 mA,
0°C
≤
T
J
≤
+125°C
Line Regulation
Load Regulation
Quiescent Current
REG
IN
REG
L
I
BIAS
11 V
≤
V
IN
≤
18 V
0 mA
≤
I
O
≤
100 mA
I
O
= 0 mA
I
O
= 100 mA
Start-up Quiescent Current
I
BIAS(s)1
I
BIAS(s)2
Quiescent Current Change
V
IN
= 9.5 V, I
O
= 0 mA
V
IN
= 9.5 V, I
O
= 100 mA
11 V
≤
V
IN
≤
18 V,
0°C
≤
T
J
≤
+125°C
10 Hz
≤
f
≤
100 kHz
f = 120 Hz, 11 V
≤
V
IN
≤
13.5 V
I
O
= 100 mA, 0°C
≤
T
J
≤
+125°C
V
IN
= 12 V
V
IN
= 18 V
I
O
= 5 mA, 0°C
≤
T
J
≤
+125°C
150
40
1.0
Conditions
MIN.
9.80
9.70
TYP.
10.00
MAX.
10.10
10.20
Unit
V
9.70
10.20
27
18
3.3
12
10
100
100
5.0
25
20
50
10
mV
mV
mA
mA
mA
mA
∆
I
BIAS
V
n
R·R
V
DIF
I
O peak
I
O short
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Peak Output Current
Short Circuit Current
Temperature Coefficient of Output
Voltage
ON/OFF Voltage
210
48
0.4
250
180
–0.5
1.0
400
µ
V
r.m.s.
dB
V
mA
mA
mV/°C
∆
V
O
/
∆
T
V
ON/OFF1
V
ON/OFF2
V
IN
= 12 V, I
O
= 10 mA
V
IN
= 12 V, I
O
= 0 mA
V
ON/OFF
= 2.7 V, I
O
= 0 mA
V
ON/OFF
= 5 V, I
O
= 0 mA
V
ON/OFF
= 0 V, I
O
= 0 mA
0.8
1.8
1.6
250
450
2.0
V
V
ON/OFF Current
I
ON/OFF1
I
ON/OFF2
450
800
10
µ
A
µ
A
µ
A
Standby Current
I
BIAS OFF
Data Sheet G12905EJ4V0DS00
5
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