Rev.6.1
_10
HIGH WITHSTAND-VOLTAGE REGURATOR
WITH RESET FUNCTION
S-87x Series
Seiko Instruments Inc
1
The S-87x Series is a low-power high withstand-
voltage regulators with a reset function, which
integrates high-precision voltage detection and voltage
regulation circuits on a single chip.
The S-87x Series has lineups for lithium-ion battery
packs.
Features
Accuracy of output voltage:
2.4 %
2.6 V to 5.8 V (0.1 V step)
Accuracy of detection voltage:
2.4 % (For the F type, the release voltage is 1.1 %)
2.1 V to 11.3 V (0.1 V step)
Low I/O voltage difference:
0.15 V typ. (at I
OUT
=30 mA, V
OUT
=5.0 V)
0.45 V typ. (at I
OUT
=30 mA, V
OUT
=3.0 V)
Low current consumption:
At Operation mode: 8
A max.
At Shutdown mode: 3.5
A max. (Available for the C/E/G type)
Wide operating voltage range:
24 V max.
Wide operating temperature range: -40C to +85C
Built-in delay circuit or shutdown circuit
Built-in short-circuit protection circuit
Small package:
SOT-89-5
Applications
Constant voltage power supply or reset circuit of battery-powered equipment, VTR, camera,
communications equipment and others.
Lithium-ion secondary battery pack
Package
SOT-89-5 (Package drawing code: UP005-A)
HIGH WITHSTAND-VOLTAGE VOLTAGE REGULATOR WITH RESET FUNCTION
Rev.6.1
_10
S-87x Series
Seiko Instruments Inc.
5
Product Code Structure
1. Function list
Table 1
Shutdown
function
Type name
Voltage detector
(VD)
Detection voltage
(
-V
DET
) accuracy
[%]
Release voltage
(
+V
DET
) accuracy
[%]
Built-in
delay
circuit
VR
VD
A type
Detects V
IN
2.4
Yes No
No
B type
Detects V
OUT
2.4
Yes No
No
C type
Detects V
IN
2.4
No Yes
No
E type
Detects V
SENSE
2.4
No Yes
No
F type
Detects V
IN
1.1
Yes No
No
G type
Detects V
OUT
2.4
No Yes
No
2. Product name selection guide
S-87 xx xx x UP - xxx - T2
IC direction in the tape sepecifications
*1
Product name (Abbreviation)
*2
Package name (Abbreviation)
UP: SOT-89-5
Product type
A: Built-in delay circuit, V
IN
detection (
-V
DET
detection)
B: Built-in delay circuit, V
OUT
detection
C: Built-in shudown circuit for regulator, V
IN
detection
E: Built-in shudown circuit for regulator, V
SENSE
detection
F: Built-in delay circuit, V
IN
detection (
+V
DET
detection)
G: Built-in shudown circuit for regulator, V
OUT
detection
Detection voltage of voltage detector
21 to 94, A0, B0, B3 (Ex. When the detection voltage of voltage
detector is 2.1 V, it is expressed as 21.
*3
)
Output voltage of voltage regulator
26 to 56 (Ex. When the output voltage of voltage regulator is
2.6 V, it is expressed as 26.)
*1. Refer to the taping specifications at the end of this document.
*2. Refer to the Table 2 to Table 3 in the "3. Product name list".
*3. A0 for 10.0 V, B0 for 11.0 V, B3 for 11.3 V.
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