ISL85033IRTZ-T Intersil, ISL85033IRTZ-T Datasheet - Page 23

• Manufacturer Part Number: ISL85033IRTZ-T
• Description: IC REG BUCK ADJ DUAL 28TQFN
• Manufacturer: Intersil
• Type: Step-Down (Buck)r

Specifications of ISL85033IRTZ-T

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.8 ~ 28 V
• Current - Output: 3A
• Frequency - Switching: 300kHz ~ 2MHz
• Voltage - Input: 4.5 ~ 28 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-WFQFN exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

The critical small signal components include any bypass
capacitors, feedback components, and compensation
components. Place the PWM converter compensation
components close to the FB and COMP pins. The
feedback resistors should be located as close as possible
to the FB pin with vias tied straight to the ground plane
as required.
VOUT1
L1
FIGURE 50. PRINTED CIRCUIT BOARD POWER PLANES AND ISLANDS
23
Cout1
LX1 trace
D1
Fb1
Cin1 Cin2
ISL85033
ISL85033
SL85033
. . .
. . .
. . .
. . .
. . .
. . .
vias
LX2 trace
D2
Fb2
Cout2
L2
VOUT2
VOUT2
December 8, 2010
FN6676.2