MAX17112 Maxim Integrated Products, MAX17112 Datasheet - Page 5

• Manufacturer Part Number: MAX17112
• Description: DC-DC Converter
• Manufacturer: Maxim Integrated Products

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(Circuit of Figure 1, V
1100
1000
900
2.5
High-Performance, Step-Up, DC-DC Converter
3.0
SWITCHING FREQUENCY
vs. INPUT VOLTAGE
50mA
15V
INPUT VOLTAGE (V)
3.5
0
0
0
0
L = 2.7μH
R
C
_______________________________________________________________________________________
IN
COMP
COMP1
4.0
= 5V, V
LOAD-TRANSIENT RESPONSE
= 47kΩ
SWITCHING WAVEFORMS
= 560pF
(I
LOAD
4.5
(I
MAIN
LOAD
= 50mA TO 550mA)
5.0
100μs/div
1μs/div
= 600mA)
= 15V, T
5.5
A
MAX17112 toc09
MAX17112 toc07
= +25°C, unless otherwise noted.)
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
Typical Operating Characteristics (continued)
0
2.5
LX
10V/div
INDUCTOR
CURRENT
1A/div
V
500mV/div
AC-COUPLED
I
500mA/div
INDUCTOR
CURRENT
2A/div
OUT
OUT
3.0
vs. SUPPLY VOLTAGE
SUPPLY CURRENT
SUPPLY VOLTAGE (V)
3.5
NONSWITCHING
SWITCHING
4.0
4.5
0.1A
15V
5.0
0
0
0
L = 2.7μH
R
C
PULSED LOAD-TRANSIENT RESPONSE
COMP
COMP1
5.5
= 47kΩ
= 560pF
(I
LOAD
V
0
0
IN
OVP PROTECTION
= 100mA TO 1.1A)
10μs/div
10ms/div
(R
SOFT-START
LOAD
2ms/div
MAX17112 toc08
MAX17112 toc10
= 30Ω)
V
200mV/div
AC-COUPLED
I
1A/div
INDUCTOR
CURRENT
1A/div
OUT
V
5V/div
V
5V/div
OUT
IN
L
MAX17112 toc06
V
5V/div
INDUCTOR
CURRENT
1A/div
OUT
5