MAX17512ATP+ Maxim Integrated, MAX17512ATP+ Datasheet - Page 7

• 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

1, 2, 3
PIN
10
11
4
5
6
7
8
9
High-Speed, Constant On-Time, Valley Current
PVIN1, PVIN2,
EN/UVLO
NAME
PVIN3
AVCC
RTON
PVCC
ICMD
AVIN
V
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FLT
CC
Buck Regulator Input. Connect PVIN_ to the input-voltage source. Bypass PVIN_ to PGND with a 2x
10FF (min) ceramic capacitor.
Input to Internal LDO. Externally short AVIN to PVIN_.
Linear Regulator Output. Connect a 2.2FF input bypass capacitor from V
possible to the IC. If not used, connect to AVIN.
Filtered V
ceramic capacitor, as close as possible to the IC. Internally connected to PVCC with 1kI resistance.
Enable/Undervoltage Lockout Pin. To externally program the UVLO threshold of the input supply,
connect EN/UVLO to the midpoint of a resistive divider between the input supply and SGND.
Active-Low, Open-Drain Fault Output. FLT goes low if overtemperature, AVCC < V
1.225V conditions occur.
TON-Setting Pin. Connect a resistor to GND for TON setting. Optionally add a resistor from AVIN to
the RTON pin current-ripple partial feed-forward compensation to set the LX_ on-time.
Reference Inductor Valley Current Input. Drive this pin from 0.4V to 1.94V to program the inductor
valley current from 0A to 5.5A.
Internal MOSFET Gate-Driver Power-Supply Input. Connect a 2.2FF input bypass capacitor from
PVCC to PGND as close as possible to the IC. Directly connect PVCC to the external power supply
when not using the internal linear regulator.
TOP VIEW
Regulator for Tracking Applications
CC
PGND4
Input. Connect to V
BST
LX1
LX2
LX3
16
17
18
19
20
+
15
1
14
CC
2
MAX17512
TQFN
with a 10I resistor. Bypass to SGND with a 0.22FF or larger
13
3
12
4
FUNCTION
11
5
EP
10 ICMD
9
8
7
6
RTON
FLT
EN/UVLO
AVCC
Pin Configuration
CC
MAX17512
Pin Description
to SGND as close as
UVLO
, or V
EN
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