SI91860 Datasheet, PDF (2/8 Pages) Vishay Siliconix – 400-mA Smart Regulator for Network Interface Card

Si91860
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
Pin 1, 2, 4 Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 6 V
Linear Regulator Output Current (peak) . . . . . . . . . . . . . . . . . . . . . . . . 600 mA
Bypass Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600 mA
Maximum Junction Temperature, T_J(max) . . . . . . . . . . . . . . . . . . . . . . . . 150_C
Storage Temperature, T_STG . . . . . . . . . . . . . . . . . . . . . . . . . . −55_C to 150_C
ESD (Human Body Model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kV
Package Power Dissipation^b
P_D . . . . . . . . . . . . . . . . . . . . . . . . 2W (internally limited via thermal shutdown)
Thermal Impedance (q_JA)^a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.5_C/W
Notes
a. Device mounted with all leads soldered or welded to PC board.
b. Derate 16 mW/_C above T_A = 25_C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation
of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING RANGE
5-V_IN and 5-V_SB Pin Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5 V to 5.5 V
3.3-V_AUX Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 V to 3.6 V
Load Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 mA to 400 mA
Operating Ambient Temperature, T_A . . . . . . . . . . . . . . . . . . . . −40_C to 85_C
SPECIFICATIONS
Parameter
Regulator Mode
Output Voltage (Regulator)
5 V_IN Select
Symbol
V_O(LDO)
5 V_SB Select
Ground Pin Current In Regulator
MODE^d
Peak Output Current (Regulator)
Output Noise Voltage (Regulator)
Ripple Rejection (Regulator)
I_GND
I_O
e_N
D3.3 V_OUT/
D5 V_IN
Dynamic Line Regulation
DV_O(line)
Dynamic Load Regulation
V_OUT Turn-On-Time
Thermal Shutdown Junction
Temperature
DV_O(load)
t_ON
T_J(s/d)
Thermal Hysteresis
Short Circuit Current
T_HYST
I_SC
Bypass Mode (5 V_IN = 5 V_SB = GND)
Output Voltage
Bypass Switch On-Resistance
Ground Current^d
V_O(BP)
r_DS(on)
I_GND
Test Conditions
Unless Otherwise Specified
5 V_IN = 5 V_SB = 5 V, 3 V_AUX = 3.30 V
I_OUT = 1 mA, C_IN = 4.7 mF, C_OUT = 2.2 mF
0 mA < I_OUT < 400 mA, 4.5 V < 5 V_IN
5 V_SB < 5.5 V
Threshold
Rising Edge of Hysteresis
Hysteresis
Threshold
Hysteresis
I_O = 0 mA
I_O = 400 mA
t_PW = 2 ms
BW = 50 Hz to100 kHz, I_OUT = 150 mA
1 kHz
I_OUT = 150 mA
10 kHz
100 kHz
V_IN: 4.5 V to 5.5 V
t_R/t_F = 2 ms, I_OUT = 150 mA
I_OUT: 1 mA to 150 mA, t_R/t_F = 2 ms
3.3 V_OUT = 0 V
0 mA < I_OUT < 150 mA
3.0 V v V_AUX v 3.6 V
0 mA < I_OUT < 400 mA
Limits
−40 to 85_C
Temp^a Min^b Typ^c Max^b
Full
3.201
3.3
3.399
Full
4.30
4.475
Full
230
Full
4.30
4.475
Full
230
Full
0.3
0.8
Full
0.7
1.6
Full
600
Room
300
Room
60
Room
40
Room
30
Room
10
Room
20
Room
15
Full
165
Full
20
Room
900
Full
3.247
Full
0.2
0.35
Full
200
400
Notes
a. Room = 25_C, Full = −40 to 85_C.
b. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum.
c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. Typical values at 25_C ambient.
d. Ground pin current includes the IC supply current and the current to drive the linear regulator or bypass switch.
Unit
V
mV
V
mV
mA
mV_(rms)
dB
mV
ms
_C
mA
V
W
mA
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Document Number: 71340
S-40704—Rev. B, 19-Apr-04