ISL1801

FN8259 Rev 1.00

Page 6 of 30

July 24, 2014

42

BOOT1

The boot pin of the high voltage switching regulator. An external bootstrap capacitor is required. This pin provides bias voltage

to the high-side MOSFET driver. A bootstrap circuit is used to create a voltage suitable to drive the internal N-channel MOSFET.

The boot diode is included within the IC.

43

PHASE1

The phase node of the high voltage switching regulator, VR1. This pin should be connected to the output inductor.

45

VIN1

Input to both the high voltage switching regulator and the high voltage start-up LDO1. This pin connects the high voltage

supply to the drain of the internal high-side MOSFET.

47

PGND1

The ground pin of the high voltage switching regulator’s power stage. There are switching power current pulses coming out of

this pin. Place the VIN1 decoupling capacitor as close as possible to this pin.

Ordering Information

PART NUMBER

(Notes 1, 2, 3)

PART

MARKING

(V)

TEMP RANGE

(°C)

PACKAGE

(Pb-free)

PKG.

DWG. #

ISL1801IVZ

ISL1801 IVZ

9 to 90

-40 to +85

48 Ld TSSOP

M48.240

ISL1801EVAL1ZA

Evaluation Board

NOTES:

1. Add “-T*” suffix for tape and reel. Please refer to TB347 for details on reel specifications.

2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin

plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil

Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

3. For Moisture Sensitivity Level (MSL), please see device information page for ISL1801. For more information on MSL please see tech brief TB363.

PIN#

PIN NAME

DESCRIPTION