MAX17512ATP+ Maxim Integrated, MAX17512ATP+ Datasheet - Page 6

• Manufacturer Part Number: MAX17512ATP+
• Description: Current & Power Monitors & Regulators High Speed Valley Current Regulator
• Manufacturer: Maxim Integrated

Specifications of MAX17512ATP+

• Product: Current Regulators
• Supply Voltage - Max: 18 V
• Supply Voltage - Min: 6.5 V
• Input Voltage Range: 6.5 V to 18 V

(V
unless otherwised noted.)
PVIN_
6
5
4
3
2
1
0
0
= V
AVIN
High-Speed, Constant On-Time, Valley Current
INDUCTOR VALLEY CURRENT
0.5
= V
1.0
ENVELOPE-TRACKING WAVEFORM
����������������������������������������������������������������� Maxim Integrated Products 6
IN
ENABLE SHUTDOWN RESPONSE
vs. V
V
ICMD
= 12V, V
1.5
ICMD
(V)
2.0
20µs/div
40µs/div
EN/UVLO
MAX17512 toc13
2.5
Regulator for Tracking Applications
= 12V, V
3.0
MAX17512 toc16
MAX17512 toc18
PVCC
Typical Operating Characteristics (continued)
V
0.5V/div
I
1A/div
V
5V/div
V
5V/div
V
10V/div
I
2A/div
L
L
ICMD
EN/UVLO
FLT
LX_
SWITCHING WAVEFORM
= V
AVCC
200ns/div
= 5V, V
100
BST
90
80
70
60
50
40
30
20
10
0
MAX17512 toc14
0 0.5 1.0 1.5
= V
EFFICIENCY GRAPH AT 12V INPUT
(TYPICAL APPLICATION CIRCUIT)
LX_
ENABLE STARTUP RESPONSE
V
5V/div
I
1A /div
V
10V/div
+ 5V, R
L
FLT
LX_
LOAD CURRENT (A)
2.0
100µs/div
2.5
RTON
3.0
3.5 4.0 4.5
= 30.1kI, T
MAX17512 PERFORMANCE
FOR STEP COMMAND
MAX17512 toc17
MAX17512 toc19
5.0
MAX17512
2µs /div
A
V
5V/div
V
5V/div
V
10V/div
I
2A/div
= T
L
EN/UVLO
FLT
LX_
J
= -40NC to +125NC,
MAX17512 toc15
V
5V/div
V
0.5V/div
I
1A /div
V
10V/div
L
FLT
ICMD
LX_