ML4903
ELECTRICAL CHARACTERISTICS (Continued)
SYMBOL
BUCK REGULATOR (Continued)
VFB Threshold Voltage (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RANGE = 0, (D3-D0) Code = 0000
RANGE = 0, (D3-D0) Code = 0001
RANGE = 0, (D3-D0) Code = 0010
RANGE = 0, (D3-D0) Code = 0011
RANGE = 0, (D3-D0) Code = 0100
RANGE = 0, (D3-D0) Code = 0101
RANGE = 1, (D3-D0) Code = 0000
RANGE = 1, (D3-D0) Code = 0001
RANGE = 1, (D3-D0) Code = 0010
RANGE = 1, (D3-D0) Code = 0011
RANGE = 1, (D3-D0) Code = 0100
RANGE = 1, (D3-D0) Code = 0101
RANGE = 1, (D3-D0) Code = 0110
RANGE = 1, (D3-D0) Code = 0111
RANGE = 1, (D3-D0) Code = 1000
RANGE = 1, (D3-D0) Code = 1001
RANGE = 1, (D3-D0) Code = 1010
RANGE = 1, (D3-D0) Code = 1011
RANGE = 1, (D3-D0) Code = 1100
RANGE = 1, (D3-D0) Code = 1101
RANGE = 1, (D3-D0) Code = 1110
2.050
2.000
1.950
1.900
1.850
1.800
3.500
3.400
3.300
3.200
3.100
3.000
2.900
2.800
2.700
2.600
2.500
2.400
2.300
2.200
2.100
-80
2.071
2.020
1.970
1.919
1.869
1.818
3.535
3.434
3.333
3.232
3.131
3.030
2.929
2.828
2.727
2.626
2.525
2.424
2.323
2.222
2.121
2.092
2.04
V
V
1.989
1.938
1.887
1.836
3.570
3.468
3.366
3.264
3.162
3.060
2.958
2.856
2.754
2.652
2.550
2.448
2.346
2.244
2.142
-117
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
ISENSE Threshold Voltage
ISENSE Hysteresis
mV
mV
V
10
3.5
2
PROTECT Threshold Voltage
PROTECT Hysteresis
3.2
1.8
3.8
2.2
V
PROTECT Charging Current
PROTECT Leakage Current
V(ISENSE) = -120mV
30
µA
nA
ns
+100
40
Transition Time,
CL = 5000pF, 10-90%
P DRV and N DRV
SUPPLY
IDD
VDD Current
SHDN = 0V
DAC (D3-D0) Code = 0000
650
900
2
µA
SHDN = 5V, VFB = 5V
1
20
1
mA
mA
µA
SHDN = 5V, VFB = 0V, CL = 5000pF
ICC
VCC Current
10
Note 1: Limits are guaranteed by 100% testing, sampling, or correlation with worst case test conditions.
Note 2: Codes 00110 to 01111, and 11111 are not valid; applying these codes to the DAC will shut off P DRV and N DRV.
4
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
