Rev.4.1
_00
HIGH RIPPLE-REJECTION AND LOW DROPOUT
CMOS VOLTAGE REGULATOR
S-L2980 Series
The S-L2980 series is a positive voltage regulator with
a low dropout voltage, high output voltage accuracy,
and low current consumption developed based on
CMOS technology.
A built-in low on-resistance transistor provides a low
dropout voltage and a large output current. A shutdown
circuit ensures long battery life.
Various types of output capacitors can be used in the
S-L2980 series compared with the conventional CMOS
voltage regulators. A small ceramic capacitor can also
be used.
Features
•
Output voltage:
•
High accuracy output voltage:
•
Low dropout voltage:
•
Low current consumption:
•
High peak current capability:
•
Built-in shutdown circuit:
•
Low ESR capacitor:
•
High ripple rejection:
•
Small package:
•
Lead-free products
1.5 V to 6.0 V, selectable in 0.1 V steps
±2.0 % accuracy
120 mV typ. (at 3.0 V output product, I
OUT
=50 mA)
During operation: 90
μA
typ., 140
μA
max.
During shutdown: 0.1
μA
typ., 1.0
μA
max.
150 mA output is possible. (at V
IN
≥V
OUT(S)
+1.0 V)
*1
Ensure long battery life.
A 1.0
μF
capacitor can be used as the output capacitor.
(A 2.2
μF
capacitor can be used as the output capacitor for the products
whose output voltage is 1.7 V or less.)
70 dB typ. (at 1.0 kHz)
SOT-23-5
*1.
Attention should be paid to the power dissipation of the package when the load is large.
Applications
•
Power supply for battery-powered devices
•
Power supply for personal communication devices
•
Power supply for home electric/electronic appliances
•
Power supply for cellular phones
Package
Package Name
SOT-23-5
Package
MP005-A
Drawing Code
Tape
MP005-A
Reel
MP005-A
Seiko Instruments Inc.
1
Rev.4.1
_00
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Product Name Structure
•
The product types and output voltage for S-L2980 Series can be selected at the user’s request. Refer to
the “1.
Product Name”
for the construction of the product name and “2.
Product Name List”
for the full
product names.
1. Product Name
S-L2980
x
xx
MC
-
TF
-
G
IC direction in tape specifications
*1
Package name (abbreviation)
MC: SOT-23-5
Output voltage
15 to 60
(e.g. When the output voltage is 1.5 V,
it is expressed as 15.)
Product type
*2
A: ON/OFF pin positive logic
B: ON/OFF pin negative logic
*1.
Refer to the taping specifications.
*2.
Refer to the “3.
Shutdown Pin (ON/OFF Pin)”
in the “
Operation”.
Seiko Instruments Inc.
3
Rev.4.1
_00
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Pin Configurations
SOT-23-5
Top view
5
4
Table 2
Pin No.
Symbol
Pin Description
1
VIN
Input voltage pin
2
VSS
GND pin
3
ON/OFF
Shutdown pin
*1
4
NC
No connection
5
VOUT
Output voltage pin
*1.
The NC pin is electrically open.
The NC pin can be connected to VIN or VSS.
1
2
3
Figure 2
Absolute Maximum Ratings
Table 3
Item
Input voltage
Output voltage
Power dissipation
Symbol
V
IN
V
ON/OFF
V
OUT
P
D
(Ta=25
°C
unless otherwise specified)
Absolute Maximum Rating
Unit
V
SS
–0.3 to V
SS
+12
V
V
SS
–0.3 to V
SS
+12
V
V
SS
–0.3 to V
IN
+0.3
V
300 (When not mounted on board)
mW
*1
600
mW
–40 to +85
°C
–40 to +125
°C
Operating ambient temperature
T
opr
Storage temperature
T
stg
*1.
When mounted on board
[Mounted board]
(1) Board size : 114.3 mm
×
76.2 mm
×
t1.6 mm
(2) Board name : JEDEC STANDARD51-7
Caution The absolute maximum ratings are rated values exceeding which the product could suffer
physical damage. These values must therefore not be exceeded under any conditions.
Power Dissipation (P
D
) [mW]
700
600
500
400
300
200
100
0
0
100
150
50
Ambient Temperature (Ta) [°C]
Figure 3 Power Dissipation of Package (When Mounted on Board)
Seiko Instruments Inc.
5
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