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PDF S-8354 Data sheet ( Hoja de datos )

Número de pieza S-8354
Descripción (S-8353 / S-8354) PWM Control Switchable Built-in Transistor Switching Regulator
Fabricantes Seiko Instruments 
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Rev.1.4_00
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE
BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
The S-8353/8354 Series is a CMOS step-up switching regulator which
mainly consists of a reference voltage source, an oscillation circuit, a
power MOS FET, an error amplifier, a phase compensation circuit, a PWM
control circuit (S-8353 Series) and a PWM / PFM switching control circuit
(S-8354 Series).
The S-8353/8354 Series can configure the step-up switching regulator with
an external coil, capacitor, and diode. In addition to the above features,
the small package and low current consumption make the S-8353/8354
Series ideal for portable equipment applications requiring high efficiency.
The S-8353 Series realizes low ripple, high efficiency, and excellent
transient characteristics due to its PWM control circuit whose duty ratio
can be varied linearly from 0 to 83% (from 0 to 78% for 250 kHz models),
an excellently designed error amplifier, and phase compensation circuits.
The S-8354 Series features a PWM / PFM switching controller that can
switch the operation to a PFM controller with a duty ratio is 15% under a
light load to prevent a decline in the efficiency due to the IC operating
current.
„ Features
• Low voltage operation: Startup at 0.9 V min. (IOUT = 1 mA) guaranteed
• Low current consumption : During operation 18.7 µA (3.3 V, 50 kHz, typ.)
During shutdown: 0.5 µA (max.)
• Duty ratio : Built-in PWM / PFM switching control circuit (S-8354 Series)
15 % to 83 % (30 kHz and 50 kHz models)
15 % to 78 % (250 kHz models)
• External parts : Coil, capacitor, and diode
• Output voltage : Selectable in 0.1 V steps between 1.5 and 6.5 V (for VDD / VOUT separate types)
Selectable in 0.1 V steps between 2.0 and 6.5 V (for other than VDD / VOUT separate types)
• Output voltage accuracy : ±2.4%
• Oscillation frequency : 30 kHz, 50 kHz, and 250 kHz selectable
• Soft start function : 6 ms (50 kHz, typ.)
„ Applications
• Power supplies for portable equipment such as digital cameras, electronic notebooks, and PDAs
• Power supplies for audio equipment such as portable CD / MD players
• Constant voltage power supplies for cameras, VCRs, and communication devices
• Power supplies for microcomputers
„ Packages
Package Name
SOT-23-3
SOT-23-5
SOT-89-3
Package
MP003-A
MP005-A
UP003-A
Drawing Code
Tape
MP003-A
MP005-A
UP003-A
Reel
MP003-A
MP005-A
UP003-A
Seiko Instruments Inc.
1

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S-8354 pdf
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STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.1.4_00
S-8353/8354 Series
4. Product Name List
(1) S-8353 Series
Table 4
Output
voltage
S-8353AxxMC
Series
S-8353AxxMA
Series
S-8353AxxUA
Series
S-8353CxxMA
Series
2.0 V
2.5 V
S-8353A20MC-IQF-T2
S-8353A25MC-IQK-T2
−−
−−
2.7 V
2.8 V
3.0 V
S-8353A27MC-IQM-T2
S-8353A28MC-IQN-T2
S-8353A30MC-IQP-T2
S-8353A30MA-IQP-T2
−−
−−
S-8353C30MA-ISP-T2
3.3 V
3.6 V
S-8353A33MC-IQS-T2
S-8353A33MA-IQS-T2
S-8353A33UA-IQS-T2
S-8353A36UA-IQV-T2
3.8 V
4.0 V
4.5 V
S-8353A38MC-IQX-T2
S-8353A45MC-IRE-T2
−−
S-8353A40UA-IQZ-T2
−−
5.0 V
5.5 V
S-8353A50MC-IRJ-T2
S-8353A55MC-IRO-T2
S-8353A50MA-IRJ-T2
S-8353A50UA-IRJ-T2
S-8353A55UA-IRO-T2
Remark Please contact the SII marketing department for products with an output voltage other than those specified above.
Table 5
Output
S-8353DxxMC
S-8353HxxMC
S-8353HxxUA
S-8353JxxMC
voltage
Series
Series
Series
Series
2.0 V
2.5 V
S-8353D20MC-IUF-T2
S-8353J20MC-IYF-T2
S-8353J25MC-IYK-T2
3.0 V
3.1 V
S-8353D30MC-IUP-T2
S-8353H30MC-IWP-T2
S-8353H31MC-IWQ-T2
S-8353J30MC-IYP-T2
−−
3.2 V
3.3 V
S-8353H32MC-IWR-T2
S-8353H33MC-IWS-T2 S-8353H33UA-IWS-T2
3.5 V
3.8 V
S-8353H35MC-IWV-T2
S-8353H38MC-IWX-T2
4.0 V
4.5 V
S-8353H40MC-IWZ-T2
S-8353H45MC-IXE-T2
5.0 V
S-8353D50MC-IVJ-T2 S-8353H50MC-IXJ-T2
S-8353J50MC-IZJ-T2
Remark Please contact the SII marketing department for products with an output voltage other than those specified above.
Seiko Instruments Inc.
5

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S-8354 arduino
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STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.1.4_00
S-8353/8354 Series
(2) 30 kHz Product (C Type)
Table 14
(Ta = 25°C unless otherwise specified)
Item Symbol
Condition
Min. Typ. Max.
Unit
Measurement
circuit
Output voltage
Input voltage
Operation start voltage
Oscillation start voltage
Operation holding voltage
VOUT
VIN
VST1
VST2
VHLD
IOUT = 1 mA
No external parts, Voltage applied to VOUT
IOUT = 1 mA, Judged by decreasing VIN
voltage gradually
VOUT(S)
× 0.976
VOUT(S)
VOUT(S)
× 1.024
10
0.9
0.8
0.7
V
V
V
V
V
2
2
2
1
2
Current consumption 1
ISS1
Current consumption 2
ISS2
Switching current
ISW
Switching transistor leakage
current
ISWQ
VOUT = VOUT(S) × 0.95
VOUT = VOUT(S) + 0.5 V
VCONT = 0.4 V
VCONT = VOUT = 10 V
S-835xx20 to 29
9.8 16.4
S-835xx30 to 39 13.1 21.9
S-835xx40 to 49 16.8 28.0
S-835xx50 to 59 20.7 34.5
S-835xx60 to 65 24.8 41.4
S-835xx20 to 29 435 9.0
S-835xx30 to 39
4.7 9.4
S-835xx40 to 49
4.9 9.7
S-835xx50 to 59
5.1 10.1
S-835xx60 to 65
5.2 10.4
S-835xx20 to 24 52 83
S-835xx25 to 29 62 100
S-835xx30 to 39 72 115
S-835xx40 to 49 88 141
S-835xx50 to 59 100 160
S-835xx60 to 65 108 172
− − 0.5
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
mA
mA
mA
mA
mA
mA
µA
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Line regulation
Load regulation
Output voltage temperature
coefficient
VOUT1
VOUT2
VOUT
Ta VOUT
VIN = VOUT(S) × 0.4 to × 0.6
IOUT = 10 µA to VOUT(S) / 250 × 1.25
Ta = 40 to +85°C
30 60 mV
30 60 mV
− ±50 ppm / °C
2
2
2
Oscillation frequency
Maximum duty ratio
PWM / PFM switching duty
ratio (For S-8354 Series)
fOSC
MaxDuty
PFMDuty
VOUT = VOUT(S) × 0.95
VOUT = VOUT(S) × 0.95
VIN = VOUT(S) 0.1 V, No-load
25 30 35 kHz
75 83 90
%
10 15 24
%
1
1
1
Soft start time
Efficiency
tSS
EFFI
3.0 6.0 12.0 ms
2
84
%
2
External parts
Coil:
CDRH6D28-101 of Sumida Corporation
Diode:
MA2Z748 (Shottky type) of Matsushita Electric Industrial Co., Ltd.
Capacitor: F93 (16 V, 22 µF tantalum type) of Nichicon Corporation
VIN = VOUT(S) × 0.6 applied, IOUT = VOUT(S) / 250
Remark VOUT(S) specified above is the set output voltage value, and VOUT is the typical value of the actual output voltage.
Seiko Instruments Inc.
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