lx1665 Microsemi Corporation, lx1665 Datasheet - Page 4

• Manufacturer Part Number: lx1665
• Description: Dual Output Pwm Controllers With 5-bit Dac
• Manufacturer: Microsemi Corporation

LX1664/64A, LX1665/65A
4
Note:
Adaptive Transient Voltage Output
In order to improve transient response a 40mV
offset is built into the Current Sense comparator.
At high currents, the peak output voltage will be
lower than the nominal set point, as shown in
Figure 1. The actual output voltage will be a
function of the sense resistor, the output current
and output ripple.
* Nominal = DAC setpoint voltage with no adaptive output voltage positioning.
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
D
UAL
O
P
E L E C T R I C A L C H A R A C T E R I S T I C S
UTPUT
R O D U C T I O N
PWM C
ONTROLLERS WITH
D
(using 5mΩ sense resistor and 5µH output inductor)
A T A
FIGURE 1 — Output Transient Response
S
H E E T
5-B
Time - 100µs/Div.
IT
DAC