ISL85033IRTZ-T7A Intersil, ISL85033IRTZ-T7A Datasheet - Page 14

• Manufacturer Part Number: ISL85033IRTZ-T7A
• Description: IC REG BUCK ADJ DUAL 28TQFN
• Manufacturer: Intersil
• Type: Step-Down (Buck)r

Specifications of ISL85033IRTZ-T7A

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.8 V ~ 28 V
• Current - Output: 3A
• Frequency - Switching: 300kHz ~ 2MHz
• Voltage - Input: 4.5 V ~ 28 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-WFQFN Exposed Pad
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ISL85033IRTZ-T7ATR

Typical Performance Curves
FIGURE 30. RATIOMETRIC START-UP SEQUENCING AT
FIGURE 32. STEADY STATE OPERATION CHANNEL 1 AT
FIGURE 28. SOFT-DISCHARGE SHUTDOWN CHANNEL 2
V
LX2 10V/DIV
SYNC 5V/DIV
LX1 10V/DIV
OUT1
RIPPLE 20mV/DIV
NO LOAD
FULL LOAD WITH SYNC FREQUENCY = 4MHz
14
V
OUT2
EN1, 2 2V/DIV
V
V
IL2 0.5A/DIV
OUT1
OUT2
EN2 5V/DIV
PG 5V/DIV
0.5V/DIV
2V/DIV
2V/DIV
ISL85033
ISL85033
Circuit of Figure 2. V
I
values are at T
OUT2
= 3A, T
FIGURE 29. INDEPENDENT START-UP SEQUENCING AT
FIGURE 31. ABSOLUTE START-UP SEQUENCING AT NO
FIGURE 33. STEADY STATE OPERATION CHANNEL 2 AT
A
A
V
LX2 10V/DIV
SYNC 5V/DIV
= -40°C to +85°C, unless otherwise noted. Typical
LX1 10V/DIV
= +25°C. (Continued)
OUT2
IN
RIPPLE 20mV/DIV
NO LOAD
LOAD
FULL LOAD WITH SYNC FREQUENCY = 4MHz
= 12V, V
OUT1
= 5V, V
OUT2
= 3.3V, I
EN1, 2 2V/DIV
V
V
EN1, 2 2V/DIV
V
V
OUT1
OUT2
OUT1
OUT2
December 8, 2010
2V/DIV
2V/DIV
OUT1
2V/DIV
2V/DIV
FN6676.2
= 3A,