S-8340A25AFT-T2-X Datasheet, PDF (33/55 Pages) Seiko Instruments Inc – SWITCHABLE SWITCHING REGULATOR CONTROLLER

STEP-UP, 600 kHz, PWM CONTROL OR PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
Rev.4.0_01
S-8340/8341 Series
Table 12 External Parts List for Output Current vs. PFM/PWM Switching Input Voltage Characteristics
Data for A Type
No.
Product
Name
Output
Voltage
Inductor
Transistor
Diode
Output Capacitor
Sense
Resistor
Application
(25) S-8341A25AFT 2.5 V CDRH5D18/4.1 μH NDS335N RB491D F920J476MB3 × 1
0Ω
*1
(26)
CDRH124/10 μH FTS2001 RBO81L-20 F951C476MG1 × 2
*2
(27) S-8341A33AFT 3.3 V CDRH5D18/4.1 μH NDS335N RB491D F920J476MB3 × 1
*1
(28)
CDRH124/10 μH FTS2001 RBO81L-20 F951C476MG1 × 2
*2
(29) S-8341A50AFT 5.0 V CDRH5D18/4.1 μH NDS335N RB491D F951A476MF1 × 1
*1
(30)
CDRH124/10 μH FTS2001 RBO81L-20 F951C476MG1 × 2
*2
*1. CDRH5D18 + NDS335N + RB491D: For small and thin parts of which height is 2 mm or shorter (The maximum current of
an external part should be set to 1.7 A.)
*2. CDRH124 + FTS2001 + RBO81L-20: For heavy load current (The maximum current of an external part should be set to
4.5 A.)
Table 13 External Parts List for Output Current vs. PFM/PWM Switching Input Voltage Characteristics
Data for C Type
No.
Product
Name
Output
Voltage
Inductor
Transistor
Diode
Output Capacitor
(31) S-8341C25AFT 2.5 V CDRH6D28/10 μH FDN335N RB491D F951C476MG1 × 1
(32)
CDRH124/10 μH FTS2001 RBO81L-20 F951C476MG1 × 2
(33) S-8341C33AFT 3.3 V CDRH6D28/10 μH FDN335N RB491D F951C476MG1 × 1
(34)
CDRH124/10 μH FTS2001 RBO81L-20 F951C476MG1 × 2
(35) S-8341C50AFT 5.0 V CDRH6D28/10 μH FDN335N RB491D F951C476MG1 × 1
(36)
CDRH124/10 μH FTS2001 RBO81L-20 F951C476MG1 × 2
*3. CDRH6D28 + FDN335N + RB491D: For part heights of 3 mm and high efficiency
*4. CDRH124 + FTS2001 + RBO81L-20: For optimizing the load current driveability
Sense
Resistor
0Ω
Application
*3
*4
*3
*4
*3
*4
33