Step-Up/Step-Down DC-DC Converter for 1-Cell Lithium-Ion Batteries
Pin Functions ILC6360CIR-36
Pin Number
Pin Name
Pin Description
Inductor input. Inductor L connected between this pin and the battery
Connect directly to battery
Low battery detect input and shutdown. Low battery detect threshold is set with this pin
using a potential divider. If this pin is pulled to logic low then the device will shutdown.
A logic level signal referenced to VIN, at a frequency between 150kHz and 500kHz on
this pin will over-ride the internal 300kHz oscillator. If the SYNC function is unused, pin
4 should be connected to ground
1
2
3
Lx
VIN
LBI/SD
SYNC
POK
4
5
This open drain output pin will go high when output voltage is within regulation,
(ILC6382CIR-XX) 0.92*VOUT (NOM) < VOUT < 0.98*VOUT (NOM)
This pin sets the adjustable output voltage via an external resistor divider network. The
formula for choosing the resistors is shown in the “Applications Information“ section.
This open drain output will go low if the battery voltage is below the low battery
threshold set at pin 3
VFB
(ILC6382CIR-ADJ)
LBO
6
7
8
GND
VOUT
Connect this pin to the battery and system ground
This is the regulated output voltage
Ordering Information (TA = -40°C to +85°C)
PIN-PACKAGE CONFIGURATIONS
ILC6360CIR-36
3.6V output, MSOP-8 package
ILC6360CIR-ADJ
Adjustable output, MSOP-8 package
LX
LX
VOUT
GND
LBO
POK
VOUT
GND
LBO
VFB
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
VIN
VIN
LBI/SD
SYNC
LBI/SD
SYNC
MSOP-8
MSOP-8
(TOP VIEW)
(TOP VIEW)
ILC6360CIR-ADJ
ILC6360CIR-36
Impala Linear Corporation
ILC6360 1.1
www.impalalinear.com
(408) 574-3939
Jan 1999
2
IMPALA [ Impala Linear Corporation ]
