Datasheet

LTC3562
15
3562fa
Table 5. Type-B Regulator Base Output Voltage Programming
B6 B5 B4 B3 B2
TYPE-B REGULATOR
BASE OUTPUT VOLTAGE
00000 0.600
00001 0.700
00010 0.800
00011 0.900
00100 1.000
00101 1.100
00110 1.200
00111 1.300
01000 1.400
01001 1.500
01010 1.600
01011 1.700
01100 1.800
01101 1.900
01110 2.000
01111 2.100
10000 2.200
10001 2.300
10010 2.400
10011 2.500
10100 2.600
10101 2.700
10110 2.800
10111 2.900
11000 3.000
11001 3.100
11010 3.200
11011 3.300
11100 3.400
11101 3.500
11110 3.600
11111 3.700
Table 4. Type-A Regulator Servo Voltage Programming
B3 B2 B1 B0
TYPE-A REGULATOR
SERVO (FEEDBACK) VOLTAGE
0000 0.425
0001 0.450
0010 0.475
0011 0.500
0100 0.525
0101 0.550
0110 0.575
0111 0.600
1000 0.625
1001 0.650
1010 0.675
1011 0.700
1100 0.725
1101 0.750
1110 0.775
1111 0.800
Table 3. Regulator Operating Modes
A1 A0 REGULATOR MODE
0 0 Pulse Skip Mode
0 1 LDO Mode
1 0 Forced Burst Mode Operation
1 1 Burst Mode Operation
Table 6. Type-B Regulator Incremental Output Voltage Programming
B1 B0 TYPE-B REGULATOR INCREMENTAL OUTPUT VOLTAGE
0 0 +0.000
0 1 +0.025
1 0 +0.050
1 1 +0.075
POR600A Pin
The POR600A pin is an open-drain output used to indicate
that regulator R600A has been enabled and has reached
its fi nal voltage. POR600A remains low impedance until
regulator R600A reaches 92% of its regulation value. A
230ms delay is included to allow a system microcontroller
ample time to reset itself. POR600A may be used as a
power on reset to the microprocessor powered by regula-
tor R600A or may be used to enable regulator R400A for
supply sequencing. POR600A is an open drain output and
requires a pull-up resistor to the output voltage of regulator
R600A or another appropriate power source.
OPERATION