S-8335A160FT-TB-G Seiko Instruments, S-8335A160FT-TB-G Datasheet - Page 30

• Manufacturer Part Number: S-8335A160FT-TB-G
• Description: IC REG SW 3CH STEP UP 24-TSSOP
• Manufacturer: Seiko Instruments
• Type: Step-Up (Boost), Invertingr

Specifications of S-8335A160FT-TB-G

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 7.48 ~ 13.93 V, -5.44 ~ -10.13 V
• Frequency - Switching: 100kHz
• Voltage - Input: 2.4 ~ 5 V
• Operating Temperature: -20°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 24-TSSOP
• Power - Output: 650mW
• Output Voltage: 13.93 V
• Operating Temperature Range: - 20 C to + 70 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

30
STEP-UP, FOR LCD BIAS SUPPLY, 3-CHANNEL SWITCHING REGULATOR
S-8335 Series
Precautions
• Mount external capacitors, diodes, coils, and other components as close as possible to the IC.
• The RS1, RS2, RT1, and RT2 values of the recommended peripheral parts are for V
• Characteristic ripple voltage and spike noise occur at the switching regulator.
• CR1 and CR2 contribute to the stability of the VQERR pin potential and increase the efficiency of
• Make sure that the operating ambient temperature range of this IC is not exceeded due to switching
• Arrange parts so that the line to the VSS pin (indicated by the bold line in Figure 23) is as short as
V
precision does not include external resistance dispersion.
significantly affected by the coil and capacitor that are used, evaluate them using actual devices when
the circuit is designed.
switching regulator Q.
recommended for CR1 and CR2, you should evaluate this value using an actual device.
transistor power dissipation (particularly at high temperature).
possible. If this line has resistance and inductance components, the VSS potential of the IC will
fluctuate due to the switching current. If a potential difference is produced between the VSS of the CPU
and the VSS of the IC, a malfunction may occur in the interface, and the electric volume may be reset.
ICON
value other than 1.6 V is used, the resistance values should be changed. The output voltage
Figure 22 Power Dissipation of 24-pin TSSOP Package (Unmounted)
CPU
VSS
Although a capacitance value in the range from 1000 pF to 0.01 µF is
1000
800
600
400
200
0
Seiko Instruments Inc.
Figure 23 VSS Line
Ambient temperature T
VIN
VDIN
VCLK
VSTR_B
50
S-8335
CONT
100
VSS
OPR
(°C)
150
VOUT
ICON
Since these are
Rev.6.0
= 1.6 V. If a
_01