S-8353A20MC-IQFT2X Datasheet, PDF (33/49 Pages) Seiko Instruments Inc – BUILT-IN TRANSISTOR SWITCHING REGULATOR

STEP-UP, PWM CONTROL or PWM / PFM SWITCHABLE BUILT-IN TRANSISTOR SWITCHING REGULATOR
Rev.3.0_01
S-8353/8354 Series
 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
Table 20 Efficiency vs. Output Current Characteristics and Output Voltage vs. Output Current Characteristics for
External Parts
Condition Product Name
1
S-8353H50MC
2
S-8353H50MC
3
S-8353H50MC
4
S-8354A50MC
5
S-8354A50MC
6
S-8353A50MC
7
S-8353A50MC
8
S-8353A33MC
Oscillation
frequency
250 kHz
250 kHz
250 kHz
50 kHz
50 kHz
50 kHz
50 kHz
50 kHz
Output voltage Control system
Inductor
Diode Output capacitor
5.0 V
5.0 V
5.0 V
5.0 V
5.0 V
5.0 V
5.0 V
3.3 V
PWM
PWM
PWM
PWM / PFM
PWM / PFM
PWM
PWM
PWM
CDRH8D28-220
CDRH5D28-220
CXLP120-220
CDRH8D28-101
CXLP120-470
CDRH8D28-101
CXLP120-470
CDRH8D28-101
MA2Z748
F93 (16 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)
F92 (6.3 V, 47 μF)
F93 (6.3 V, 22 μF)
The properties of the external parts are shown below.
Component
Product name
CDRH8D28-220
CDRH8D28-101
Inductor
CDRH5D28-220
CXLP120-220
CXLP120-470
Diode
MA2Z748
F93 (16 V, 47 μF)
Capacitor
F93 (6.3 V, 22 μF)
F92 (6.3 V, 47 μF)
*1. Direct current resistance
*2. Maximum allowable current
*3. Forward voltage
*4. Forward current
Table 21 Properties of External Parts
Manufacturer
Sumida Corporation
Sumitomo Special Metals Co.,
Ltd.
Matsushita Electric Industrial
Co., Ltd.
Characteristics
22 μH, DCR^*1 = 95 mΩ, IMAX.^*2 = 1.6 A,
Component height = 3.0 mm
100 μH, DCR^*1 = 410 mΩ, IMAX.^*2 = 0.75 A,
Component height = 3.0 mm
22 μH, DCR^*1 = 122 mΩ, IMAX.^*2 = 0.9 A,
Component height = 3.0 mm
22 μH, DCR^*1 = 590 mΩ, IMAX.^*2 = 0.55 A,
Component height = 1.2 mm
47 μH, DCR^*1 = 950 mΩ, IMAX.^*2 = 0.45 A,
Component height = 1.2 mm
VF^*3 = 0.4 V, IF^*4 = 0.3 A
Nichicon Corporation
−
Caution The values shown in the characteristics column of Table 21 above are based on the materials provided by
each manufacture. However, consider the characteristics of the original materials when using the above
products.
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