S-8340A25AFT-T2-X Datasheet, PDF (43/55 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
4. Output Current (IOUT) vs. PFM/PWM Switching Input Voltage (VIN) Characteristics
The following shows the actual output current (IOUT) vs. PFM/PWM switching input voltage (VIN) characteristics when
the S-8341 Series is used under conditions (25) to (36) in Tables 12 and 13.
(25) S-8341A25AFT
3.5 ^{((CCDDRRHH55DD181/48./14μ.1Hμ, HN,DSN3D3S5N3)35N)}
(26) S-8341A25AFT
3.5 ^{(CDDRRHH11242/41/01μ0Hμ,HF,TSF2T0S021)001)}
3 .0
2 .5
2 .0
1 .5
1 .0
0 .5
0 .0
1
PFM
PWM
10
100
II_OOUUTT(mmAA) )
1000
3 .0
2 .5
2 .0
1 .5
1 .0
0 .5
0 .0
1
PFM
PWM
10
I_OI_{OUUT T}((mmAA) )
100
(27) S-8341A33AFT
3.5 ^{((CCDDRRHH55DD181/84./14μ.1Hμ, HN,DSN3D3S5N3)35N)}
(28) S-8341A33AFT
3.5 ^{(CDDRRHH11242/41/01μ0Hμ,HF,TFS2T0S021)001)}
3 .0
2 .5
PFM
3 .0
2 .5
PFM
2 .0
2 .0
1 .5
1 .5
1 .0
PWM
1 .0
PWM
0 .5
0 .5
0 .0
1
10
100
I_OIUOTU(_Tm_(mA)_{A )}
1000
0 .0
1
10
100
I_OI_UO_TU(Tm(mA)A )
1000
(29) S-8341A50AFT
5.0 ^{(CCDDRRHH55DD181/48./14μ.1Hμ, HND, SN3D3S5N3)35N)}
(30) S-8341A50AFT
5.0 ^{((CCDDRRHH12142/140/1μ0Hμ,HFT, SF2T0S012)001)}
4 .0
PFM
3 .0
4 .0
PFM
3 .0
2 .0
PWM
1 .0
0 .0
0 .1
1
10
I_OIUOTUT(m_(mA)_{A )}
100
(31) S-8341C25AFT
3.5 ^{((CCDDRRHH66DD282/180/1μ0Hμ,HN,DFS3D3N5N33) 5N)}
3 .0
2 .5
PFM
2 .0
1 .5
1 .0
PWM
0 .5
0 .0
1
10
I_OUIOTU(_Tm_(mA)_{A )}
1000
100
2 .0
1 .0
PWM
0 .0
1
10
100
I_OI_UOTU(_Tm(mA)A )
(32) S-8341C25AFT
3.5 ^{((CCDDRRHH12142/410/1μ0Hμ,HF,TSF2T0S012)001)}
3 .0
2 .5
PFM
2 .0
1 .5
1 .0
PWM
0 .5
0 .0
1
10
I_OI_UO_TUT((mmAA) )
1000
100
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