S-8353 Seiko Instruments, S-8353 Datasheet - Page 32

• Manufacturer Part Number: S-8353
• Description: (S-8353 / S-8354) PWM Control Switchable Built-in Transistor Switching Regulator
• Manufacturer: Seiko Instruments

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*1. Direct current resistance
*2. Maximum allowable current
*3. Forward voltage
*4. Forward current
Caution The values shown in the characteristics column of Table 20 above are based on the materials provided by
32
Condition
Diode
Capacitor
STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
S-8353/8354 Series
Inductor
Table 19 Efficiency vs. Output Current Characteristics and Output Voltage vs. Output Current Characteristics for
Component
Reference Data
Reference data is provided to determine specific external components. Therefore, the following data shows the
characteristics of the recommended external components selected for various applications.
1. External Parts for Reference Data
1
2
3
4
5
6
7
8
The properties of the external parts are shown below.
each manufacture. However, consider the characteristics of the original materials when using the above
products.
S-8353H50MC
S-8353H50MC
S-8353H50MC
S-8354A50MC
S-8354A50MC
S-8353A50MC
S-8353A50MC
S-8353A33MC
Product Name
External Parts
F93 (16 V, 47 µF)
F93 (6.3 V, 22 µF)
F92 (6.3 V, 47 µF)
CDRH8D28-220
CDRH8D28-101
CDRH5D28-220
CXLP120-220
CXLP120-470
MA2Z748
Product name
Oscillation
frequency
250 kHz
250 kHz
250 kHz
50 kHz
50 kHz
50 kHz
50 kHz
50 kHz
Table 20 Properties of External Parts
Sumida Corporation
Sumitomo Special Metals Co.,
Ltd.
Matsushita Electronic
Components Co., Ltd.
Nichicon Corporation
Output voltage Control system
Seiko Instruments Inc.
5.0 V
5.0 V
5.0 V
5.0 V
5.0 V
5.0 V
5.0 V
3.3 V
Manufacturer
PWM / PFM
PWM / PFM
PWM
PWM
PWM
PWM
PWM
PWM
CDRH8D28-220 MA2Z748 F93 (16 V, 47 µF)
CDRH8D28-101
CDRH5D28-220
CDRH8D28-101
CDRH8D28-101
22 µH, DCR
Component height = 3.0 mm
100 µH, DCR
Component height = 3.0 mm
22 µH, DCR
Component height = 3.0 mm
22 µH, DCR
Component height = 1.2 mm
47 µH, DCR
Component height = 1.2 mm
V
CXLP120-220
CXLP120-470
CXLP120-470
F
*3
Inductor
= 0.4 V, I
*1
*1
*1
*1
*1
F
= 95 mΩ, I
= 122 mΩ, I
= 590 mΩ, I
= 950 mΩ, I
*4
Characteristics
= 410 mΩ, I
= 0.3 A
Diode
−
MAX.
MAX.
MAX.
MAX.
MAX.
F93 (6.3 V, 22 µF)
F92 (6.3 V, 47 µF)
F93 (6.3 V, 22 µF)
F92 (6.3 V, 47 µF)
F93 (6.3 V, 22 µF)
F92 (6.3 V, 47 µF)
F93 (6.3 V, 22 µF)
*2
Output capacitor
*2
*2
*2
= 1.6 A,
*2
Rev.1.4
= 0.9 A,
= 0.55 A,
= 0.45 A,
= 0.75 A,
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