ISL98012IUZ-T Intersil, ISL98012IUZ-T Datasheet - Page 4

• Manufacturer Part Number: ISL98012IUZ-T
• Description: IC BOOST ADJ .6A 10MSOP
• Manufacturer: Intersil
• Type: Step-Up (Boost)r

Specifications of ISL98012IUZ-T

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 4.5 ~ 17 V
• Current - Output: 600mA
• Frequency - Switching: 670kHz
• Voltage - Input: 1.8 ~ 13.2 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

Pin Descriptions
Block Diagram
PIN NUMBER
56kΩ
10
1
2
3
4
5
6
7
8
9
LBO
LBI
EN
R
T
GENERATOR
REFERENCE
PIN NAME
220mV
PGND
SGND
LBO
VDD
EN
LBI
RT
SS
FB
LX
+
-
MAX_DUTY
4
V
Power ground; connected to the source of internal N-Channel power MOSFET
Signal ground; ground reference for all the control circuitry; needs to have only a single connection to PGND
Timing resistor to adjust the oscillation frequency of the converter. Resistor value on RT pin determines
frequency. Range varies from R
Chip enable; connects to logic HI (>1.6V) for chip to function
Low battery input; connects to a sensing voltage, or connect to GND if function is not used
Low battery detection output; connected to the open drain of a MOSFET; able to sink 1mA current
Soft-start; connects to a capacitor to control the start-up of the converter. During start-up, V
current limit and hence the in-rush current.
Voltage feedback input; needs to connect to resistor divider to decide V
Control circuit positive supply
Inductor drive pin; connected to the drain of internal N-Channel power MOSFET
V
RAMP
REF
FB
10kΩ
COMPARATOR
4.7nF
PWM
OSCILLATOR
START-UP
113k
ISL98012
T
= 49.9kΩ for 750kHz and R
SHUT-DOWN
THERMAL
V
SGND
5kΩ
PIN FUNCTION
DD
V
0.1µF
OUT
LOGIC
= 15V
I
PWM
LOUT
+
-
T
22µF
= 100kΩ for 380kHz
7.2kΩ
12µA
O
SS
20nF
LX
PGND
0.2Ω
80mΩ
10µH
SS
10µF
controls the
December 8, 2010
V
IN
FN6654.1