L4993 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'L4993' PDF : 30 Pages View PDF
Electrical specifications
L4993
2.3
Electrical characteristics
Values specified in this section are for Vs =5.6V to 31V, Tj= -40°C to +150°C unless
otherwise stated.
Table 5. General
Pin Symbol
Parameter
Test condition Min. Typ. Max. Unit
Vo
Vo
Vo
Vs, Vo
Vo_ref
Ishort
Ilim(2)
Vline
Output voltage
Short circuit current
Output current limitation
Line regulation voltage
Vs = 6 to 31V
Io = 1 to 150mA
Vs = 13.5V(1)
Vs = 13.5V(1)
Vs = 6 to 31V
Io = 1 to 150mA
4.9 5.0 5.1 V
150 280 400 mA
150 320 500 mA
25 mV
Vo
Vs, Vo
Vs, Vo
Vload
Vdp(3)
SVR
Load regulation voltage
Drop voltage
Ripple rejection
Vs, Vo Iqn_150 Quiescent current
Vs, Vo
Iqn_50 Quiescent current
Io = 1 to 150mA
Io = 150mA
fr = 100 Hz (4)
Vs=13.5V,
Io=150mA,
WEn = high
Vs=13.5V,
Io= 50mA,
WEn = high
25 mV
200 400 mV
55
dB
1.25 2 mA
470 1000 µA
Vs, Vo
Iqn_1 Quiescent current
Vs, Vo
Quiescent current with
Iqs
watchdog regulator
disabled
Vs=13.5V,
Io< 1mA,
WEn = high
Vs=13.5V,
Io< 1mA,
WEn = low
100 180 µA
79 125 µA
Tw
Tw_hy
Thermal protection
temperature
Thermal protection
temperature hysteresis
150
190 °C
10
°C
1. See Figure 25.
2. Measured output current when the output voltage has dropped 100mV from its nominal value obtained at
Vs=13.5V and Io= 75mA.
3. Vs-Vo measured when the output voltage has dropped 100mV from its nominal value obtained at
Vs=13.5V and Io= 75mA.
4. Guaranteed by design.
8/30
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