S-L2980_1 Datasheet, PDF (6/23 Pages) Seiko Instruments Inc – HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR

HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
S-L2980 Series
Rev.4.1_00
„ Electrical Characteristics
Item
Symbol
Table 4
Condition
(Ta=25 °C unless otherwise specified)
Min.
Typ.
Max.
Unit
Test
circuit
Output voltage^*1
V_OUT(E) V_IN =V_OUT(S)+1.0 V, I_OUT=50 mA
V_OUT(S) V_OUT(S) V_OUT(S)
× 0.98
× 1.02
V
1
Output current^*2
Dropout voltage^*3
I_OUT
V_IN ≥V_OUT(S)+1.0 V
150^*5
⎯
⎯ mA
3
V_drop
I_OUT = 50 mA
1.5 V ≤V_OUT(S) ≤1.7 V ⎯
0.17 0.33
V
1
1.8 V ≤V_OUT(S) ≤1.9 V ⎯
0.16 0.29
V
1
2.0 V ≤V_OUT(S) ≤2.4 V ⎯
0.15 0.26
V
1
2.5 V ≤V_OUT(S) ≤2.9 V ⎯
0.13 0.20
V
1
3.0 V ≤V_OUT(S) ≤3.2 V ⎯
0.12 0.15
V
1
3.3 V ≤V_OUT(S) ≤6.0 V ⎯
0.11 0.14
V
1
Line regulation
ΔVOUT1
ΔVIN• VOUT
V_OUT(S)+0.5 V ≤V_IN ≤10 V, I_OUT=50 mA
⎯ 0.05 0.2 %/V 1
Load regulation
ΔV_OUT2 V_IN=V_OUT(S)+1.0 V, 1.0 mA ≤I_OUT ≤80 mA
⎯
12
40 mV
1
Output voltage
ΔVOUT _{VIN=VOUT(S)+1.0 V, IOUT =50 mA,}
temperature coefficient^*4 ΔTa• VOUT –40°C ≤Ta ≤85°C
⎯
±100
⎯
ppm/
°C
1
Current consumption
during operation
I_SS1
V_IN=V_OUT(S)+1.0 V, ON/OFF pin=ON,
No load
⎯
90 140 μA
2
Current consumption
when shutdown
I_SS2
V_IN=V_OUT(S)+1.0 V, ON/OFF pin =OFF,
No load
⎯ 0.1 1.0 μA
2
Input voltage
ON/OFF pin
input voltage “H”
V_IN
⎯
V_SH
V_IN=V_OUT(S)+1.0 V, R_L=1.0 kΩ
2.0 ⎯
10
V
⎯
1.5
⎯
⎯
V
4
ON/OFF pin
input voltage “L”
V_SL
V_IN=V_OUT(S)+1.0 V, R_L=1.0 kΩ
⎯
⎯
0.3
V
4
ON/OFF pin
input current “H”
I_SH
V_IN=V_OUT(S)+1.0 V, V_ON/OFF=7.0 V
–0.1 ⎯ 0.1 μA
4
ON/OFF pin
input current “L”
I_SL
V_IN=V_OUT(S)+1.0 V, V_ON/OFF=0 V
–0.1 ⎯ 0.1 μA
4
Ripple rejection
RR
V_IN=V_OUT(S)+1.0 V, 1.5 V ≤V_OUT(S) ≤3.3 V ⎯
70
⎯
dB
5
f = 1.0 kHz,
ΔV_rip=0.5 V rms,
3.4 V ≤V_OUT(S) ≤5.0 V
⎯
65
⎯
dB
5
I_OUT=50 mA
5.1 V ≤V_OUT(S) ≤6.0 V ⎯
60
⎯
dB
5
*1. V_OUT(S): Specified output voltage
V_OUT(E): Actual output voltage at the fixed load
The output voltage when fixing I_OUT(=50 mA) and inputting V_OUT(S)+1.0 V
*2. Output current at which output voltage becomes 95 % of V_OUT after gradually increasing output current.
*3. V_drop=V_IN1−(V_OUT×0.98)
V_IN1 is the input voltage at which output voltage becomes 98 % of V_OUT after gradually decreasing input voltage.
*4. Temperature change ratio in the output voltage [mV/°C] is calculated by using the following equation.
[ ] [ ] [ ] ^ΔVOUT mV/°C ^*1 = VOUT(S) V ^*2 × ^ΔVOUT ppm/°C ^*3 ÷ 1000
ΔTa
ΔTa • VOUT
*1. Temperature change ratio of the output voltage
*2. Specified output voltage
*3. Output voltage temperature coefficient
*5. The output current can be supplied at least to this value.
Due to restrictions on the package power dissipation, this value may not be satisfied.
Attention should be paid to the power dissipation of the package when the load is large.
This specification is guaranteed by design.
6
Seiko Instruments Inc.