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S-882140AMH-M2PTFG

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
VOLTAGE REGULATION STEP-UP CHARGE PUMP DC-DC CONVERTER
Rev.5.0_00
S-8821 Series
Seiko Instruments Inc. 13
Precautions
• Regarding the wiring to the VIN pin, VOUT pin, C+ pin, C− pin and GND pin, be careful to perform
pattern wiring so as to obtain low impedance.
• Always connect a capacitor to the VOUT pin, C+ pin, and C− pin.
• Connect C
IN
and C
OUT
in the vicinity of the IC and sufficiently strengthen the wiring for GND pin and VIN
pin in order to lower the impedance of the wiring resistance, etc. High impedance may cause unstable
operation.
Moreover, in selecting C
IN
and C
OUT
, perform a full evaluation of the actual usage conditions.
• Connect C
PUMP
in the vicinity of the IC and sufficiently strengthen the wiring for the C+ pin and C− pin in
order to lower the impedance of the wiring resistance, etc. High impedance may cause instable
operation.
Moreover, in selecting C
PUMP
, perform a full evaluation of the actual usage conditions.
• The ON/OFF pin is configured as shown in Figure 9 and is neither pulled up or down internally, so do not
use this pin in a floating state. When not using the ON/OFF pin, connect it to the VIN pin.
Moreover, please do not apply voltage higher than VIN + 0.3 V to an ON/OFF pin. Current flows for a
VIN pin through the protection diode inside IC.
• Since this IC consists of double step-up circuits, it cannot set more than twice voltage of V
IN
to V
OUT(S)
.
• Be careful about the usage conditions for the input/output voltages and output current to make sure that
dissipation within the IC does not exceed the allowable power dissipation of the package.
For reference, the calculation of the power consumption in this IC is shown below.
P
D
=(V
IN
× 2.0 − V
OUT
) × (I
OUT
)
Reference: V
IN
=4.2 V, V
OUT
=5.5 V, I
OUT
=10 mA
P
D
=(4.2 × 2.0 − 5.5) × 0.010=29 mW
• Since the information described herein is subject to change without notice, confirm that this is the latest
one before using.
• Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in
electrostatic protection circuit.
• SII claims no responsibility for any and all disputes arising out of or in connection with any infringement
of the products including this IC upon patents owned by a third party.
VOLTAGE REGULATION STEP-UP CHARGE PUMP DC-DC CONVERTER
S-8821 Series
Rev.5.0_00
Seiko Instruments Inc. 14
Characteristics (Typical Data)
(1) Output voltage vs. Operation input voltage
S-882133A S-882150A
I
OUT
=10 mA, Ta=25°C I
OUT
=10 mA, Ta=25°C
V
OUT
[V]
1.5
2.0
2.5
3.0
3.5 5.5
3.15
3.10
3.50
3.20
3.25
3.35
3.30
3.40
3.45
4.0
4.5
5.0
V
OUT
[V]
1.5 2.5
3.0
3.5
5.5
4.80
4.70
5.30
5.20
5.10
5.00
4.90
2.0 4.0
4.5
5.0
V
IN
[V]
V
IN
[V]
(2) Output voltage vs. Output current
S-882133A S-882150A
V
IN
=2.0 V, Ta=25°C
V
IN
=3.0 V, Ta=25°C
V
OUT
[V]
0
5
10
20
30
3.15
3.10
3.50
3.40
3.35
3.30
3.25
3.20
25
15
3.45
V
OUT
[V]
0
10
15
20
30
4.70
5.30
5.20
5.10
5.00
4.90
4.80
5 25
I
OUT
[mA]
I
OUT
[mA]
(3) Operation consumption vs. Operation input voltage
S-882133A S-882150A
Ta=25°C Ta=25°C
I
SS1
[μA]
1.5 3.5
4.0
5.5
15
10
50
40
35
30
25
20
5.0 4.5
45
2.0 2.5 3.0
I
SS1
[μA]
1.5
2.5
5.5
10
50
35
30
20
3.5
40
25
45
15
3.0
4.0
2.0
4.5
5.0
V
IN
[V]
V
IN
[V]
VOLTAGE REGULATION STEP-UP CHARGE PUMP DC-DC CONVERTER
Rev.5.0_00
S-8821 Series
Seiko Instruments Inc. 15
(4) Ripple voltage vs. Operation input voltage
S-882133A S-882150A
I
OUT
=10 mA, Ta=25°C I
OUT
=10 mA, Ta=25°C
V
RIP
[mV
p-p
]
1.5
3.0
3.5
4.0
5.0
5.5
0
20
40
60
100
4.5
2.0
2.5
80
V
RIP
[mV
p-p
]
1.5 2.5
3.0
3.5
5.0 5.5
20
0
40
60
100
4.5
80
4.0
2.0
V
IN
[V]
V
IN
[V]
(5) Efficiency
*1
vs. Operation input voltage
S-882133A S-882150A
I
OUT
=10 mA, Ta=25°C I
OUT
=10 mA, Ta=25°C
η [%]
1.5
2.0
3.5 4.5
5.5
20
40
60
80
100
4.0
5.0
3.0
2.5
η [%]
1.5 2.5 3.5 5.5
20
40
60
80
100
4.0 3.0 4.5 5.02.0
V
IN
[V]
V
IN
[V]
*1. The ideal efficiency is indicated by the following expression.
Efficiency (η)=(V
OUT
× I
OUT
) / (2.0 × V
IN
× I
OUT
)
(6) Maximum oscillation frequency vs. Operation input voltage
S-882133A S-882150A
Ta=25°C Ta=25°C
f
OSC
[kHz]
1.5 2.0
2.5
3.5 5.0 5.5
700
800
900
1000
1100
1200
1300
4.0 4.5 3.0
f
OSC
[kHz]
1.5 2.0
2.5
4.0 5.0 5.5
700
800
900
1000
1100
1200
1300
4.5
3.5 3.0
V
IN
[V]
V
IN
[V]
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24

S-882140AMH-M2PTFG

Mfr. #:
Buy S-882140AMH-M2PTFG
Manufacturer:
ABLIC
Description:
Switching Voltage Regulators STEP UP CHARGE PUMP
Lifecycle:
New from this manufacturer.
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