MC33765_06 Datasheet, PDF (4/12 Pages) ON Semiconductor – Very Low Dropout/Ultra Low Noise 5 Outputs Voltage Regulator

MC33765
REGULATOR ELECTRICAL CHARACTERISTICS
ELECTRICAL CHARACTERISTICS (For typical values T_A = 25°C, for min/max values T_A = −40°C to +85°C/ Max T_J = 125°C)
Characteristics
Pin #
Symbol Min Typ Max Unit
OUTPUT CURRENTS (Note 3)
Regulator VR1 Output Current
14
I_OUT1
10
−
30
mA
Regulator VR2 Output Current
13
I_OUT2
10
−
40
mA
Regulator VR3 Output Current
12
I_OUT3
0
−
50
mA
Regulator VR4 Output Current
11
I_OUT4
10
−
150
mA
Regulator VR5 Output Current
9
I_OUT5
10
−
60
mA
Current Limit for VR1, VR2, VR3, VR4, VR5
[Twice the max Output Current for each output]
14, 13, 12,
I_MAX
− 2 X I_OUT −
mA
11, 9
(1−5)
EXTERNAL CAPACITORS
External Compensation Capacitors for VR1, VR2, VR4, VR5
External Compensation Capacitors for VR3
External Compensation Capacitors ESR
14, 13, 11, 9 C_{(1−2, 4−5)} 0.10
−
1.0
mF
12
C₄
1.0
−
−
mF
−
−
0.05 1.0
3.0
W
RIPPLE REJECTIONS
Ripple Rejection VR1, VR2, VR4, VR5
(at Max. Current, 1.0 kHz, C = 100 nF)
Ripple Rejection VR1, VR2, VR4, VR5
(at Max. Current, f = 10 kHz, C = 100 nF)
Ripple Rejection of VR3
(at Max. Current, f = 1.0 kHz, C = 1.0 mF)
Ripple Rejection of VR3
(at Max. Current, f = 10 kHz, C = 1.0 mF)
Ripple Rejection of VR3
(at Max. Current, f = 100 kHz, C = 1.0 mF)
DYNAMIC PARAMETERS
14, 13, 11, 9 (DV_OUT) 50
60
−
dB
(DV_CC )
14, 13, 11, 9 (DV_OUT) 40
45
−
dB
(DV_CC )
12
(DV_OUT) 50
60
−
dB
(DV_CC )
12
(DV_OUT) 40
45
−
dB
(DV_CC )
12
(DV_OUT) ¹⁸
22
−
dB
(DV_CC )
Rise Time (1% → 99%) Common Enable at ON state, C_bypass = 10 nF, I_out at max. current
VR1, VR2, VR4, VR5 with C_OUT = 100 nF, T_A = 25°C
t_on
VR3 with C_OUT = 1.0 mF, T_A = 25°C
Fall Time (99% → 1%) [C_OUT = 100 nF, I_OUT = 30 mA] (Note 4)
t_off
Overshoot (C_OUT = 100 nF for VR1, VR2, VR4, VR5 and C_OUT = 1.0 mF for VR3) at
−
T_A = 25°C Common Enable at ON state, independent enable from OFF to ON state
Settling Time (to ±0.1% of nominal) at T_A = 25°C
−
Common Enable at ON state, independent enable from OFF to ON state
−
−
30
ms
−
−
150
ms
−
100
−
ms
−
5
8
%
−
95
−
ms
NOISE AND CROSSTALKS
Noise Voltage (100 Hz < f < 100 kHz) with C_bypass = 100 nF
VR1, VR2, VR4, VR5 with C_OUT = 100 nF; VR3 with C_OUT = 1.0 mF
Static crosstalk (DC shift) between the Regulator Output, T_A = 25°C (Note 5)
Dynamic CrossTalk Attenuation between the Regulator Outputs (f = 10 kHz),
T_A = 25°C (Note 6)
−
−
40
− mV RMS
−
25
30
−
−
150 200
mV
−
30
35
−
dB
THERMAL SHUTDOWN
Thermal Shutdown
−
−
160
−
°C
3. Maximum Output Currents are peak values. Total DC current have to be set upon maximum power dissipation specification. Only Output
3 has been designed to be stable at minimum current of 0 mA.
4. The Fall time is highly dependent on the load conditions, i.e. load current for a specified value of C_OUT.
5. Static Crosstalk is a DC shift caused by switching ON one of the outputs through independent enable to all other outputs. This parameter
is highly dependent on overall PCB layout and requires the implementation of low−noise GROUND rules (e.g. Ground plane).
6. Dynamic crosstalk is the ratio between a forced output signal to signal transferred to other outputs. This requires special device configuration
to be measured.
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