S-8341A30AFT-T2-G Seiko Instruments, S-8341A30AFT-T2-G Datasheet - Page 14

• Manufacturer Part Number: S-8341A30AFT-T2-G
• Description: IC REG SW 600KHZ 3.0V 8-TSSOP
• Manufacturer: Seiko Instruments
• Type: Step-Up (Boost)r

Specifications of S-8341A30AFT-T2-G

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3V
• Frequency - Switching: 600kHz
• Voltage - Input: 0.9 ~ 6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP
• Power - Output: 300mW
• Output Voltage: 3 V
• Operating Temperature Range: - 40 C to + 85 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

External parts
*2. The change of output voltage with temperature [mV/°C] is calculated from the following formula. However, the
Caution The S-8340/8341 Series steps up from V
14
The ON/OFF pin is connected to the VOUT pin unless otherwise specified.
Connect the SENSE pin to the VSS pin.
*1. V
STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8340/8341 Series
The Typ. value (set output voltage value) is 1 +
temperature change rates for R
(Change of output voltage
with temperature)
OUT(E)
ΔV
ΔTa
stabilize the output voltage and oscillation frequency. If V
instead of V
voltage accuracy of ±2.0% is not guaranteed due to dependency of output voltage on V
accuracy of output voltage is degraded significantly when the V
not use this IC when the V
supply so that V
: Actual output voltage value : Output voltage value when I
OUT
Coil :
Diode :
Capacitor :
Transistor :
Base resistor (R
Base capacitor (C
C
C
R
R
C
[mV/°C]
VREF
SS
FB1
FB2
FB
:
:
:
:
:
OUT
, V
= (
DD
(Set output
DD
1 +
becomes 2.5 V or more within the soft-start time (6.0 ms).
voltage value)
should be 2.5 V or more. However, if V
b
R
R
) :
b
FB1
FB2
FB1
) : 2200 pF (ceramic type)
and R
)
DD
1.0 kΩ
4700 pF
300 kΩ
100 kΩ
50 pF
Sumida Corporation CD54 (10 μH)
Matsushita Electronic Industrial Co., Ltd. MA735 (Schottky type)
Nichicon Corporation F93 (16 V, 47 μF, tantalum type)
Sanyo Electric Co., Ltd. 2SD1628G
0.01 μF
×
voltage is 6.0 V or more. If V
FB2
(Output voltage temperature
ΔTa
coefficient)
ΔV
are assumed to be the same.
OUT
•
V
300 kΩ
100 kΩ
Seiko Instruments Inc.
OUT
DD
[ppm/°C] ÷ 1000
= 0.9 V. However, 2.5 V or more for V
[V]
OUT
= 80 mA and V
DD
DD
DD
of 2.5 V or more is applied, increase power
is taken from V
DD
is other than 4.0 V, note that the output
voltage is 6.0 V or more. Therefore, do
IN
= 2.4 V is applied.
IN
or other power sources,
DD
is recommended to
DD
. In particular,
Rev.4.0
_00