S-13R1 Datasheet, PDF (31/49 Pages) Seiko Instruments Inc – REVERSE CURRENT PROTECTION CMOS VOLTAGE REGULATOR

Rev.1.2_01
REVERSE CURRENT PROTECTION CMOS VOLTAGE REGULATOR
S-13R1 Series
4. Output capacitance vs. Characteristics of discharge time (Ta = +25°C)
VIN = VOUT(S) + 1.0 V, CIN = 1.0 μF, IOUT = no load,
VON / OFF = VOUT(S) + 1.0 V → 0 V, tf = 1.0 μs
VON / OFF
1.0 μs
1.6
1.4
VOUT(S) = 1.2 V
1.2
VOUT(S) = 3.0 V
1.0 VOUT(S) = 4.0 V
0.8
0.6
0.4
0.2
0
02468
CL [μF]
10 12
Figure 26 S-13R1 Series A / B type
(with discharge shunt function)
V_OUT
tDSC
V_SS
V_OUT × 10%
V_IN = V_OUT + 1.0 V
VON / OFF = VOUT + 1.0 V → VSS
Figure 27 Test Condition of Discharge Time
5. Example of equivalent series resistance vs. Output current characteristics (Ta = +25°C)
C_IN = C_L = 1.0 μF
100
Stable
0 _0.01
150
I_OUT [mA]
Figure 28
C_IN
ON / OFF
VIN
VOUT
VSS
C_L^*1
R_ESR
*1. CL: ROHM Co.,Ltd. MCH184FN105Z (1.0 μF)
Figure 29
31