Performance Summary; Typical Performance Characteristics - Linear Technology Analog Devices DC2688A Demo Manual

DEMO MANUAL DC2688A

PERFORMANCE SUMMARY

SYMBOL PARAMETER
V Input Supply Range
IN
V USB 5V Bus Voltage
BUS
USB 5V Bus Voltage
I Maximum Output Current
BUS
Maximum Output Current
f Switching Frequency
SW
EFE Efficiency at DC

TYPICAL PERFORMANCE CHARACTERISTICS

Figure 2. Efficiency vs Load Current at 2MHz Switching Frequency (Input from V
4
Specifications are at T
CONDITIONS
Without Cable Drop Compensation
With Cable Drop Compensation
R = 10mΩ
SENSE
R = 8mΩ
SENSE
V = 12V, I = 1.5A
IN BUS1
95
90
85
80
75 f = 2MHz
SW
PULSE SKIPPING MODE
L = XFL5030-222
70
R = 8mΩ
SENSE
65
60
0 0.5 1 1.5 2
I (A)
OUT
= 25°C
A
MIN
6.0
4.8
2.4
3.0
1.95
V = 24V
IN
V = 12V
IN
2.5 3
DC2688A F02
Terminal)
IN
TYP MAX UNITS
42 V
5 5.2 V
6.2 V
A
A
2 2.05 MHz
92.7 %
Rev. 0