ISL85033IRTZ-T Intersil, ISL85033IRTZ-T Datasheet - Page 9

• 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: -

Electrical Specifications
NOTES:
Soft-Start Ramp Time
Soft-Start Charging Current
POWER-GOOD
PG1, PG2 Trip Level PG to
PGOOD1, PGOOD2
PG1, PG2 Propagation Delay
PG1, PG2 Low Voltage
ENABLE INPUT
EN1, EN2 Leakage Current
EN1, EN2 Input Threshold Voltage
SYNC INPUT/OUTPUT
SYNCIN Input Threshold
SYNCIN Leakage Current
SYNCIN Pulse Width
SYNCOUT Phase-shift to SYNCIN
SYNCOUT Frequency Range
SYNCOUT Output Voltage High
SYNCOUT Output Voltage Low
FAULT PROTECTION
Thermal Shutdown Temperature
Overcurrent Protection Threshold
OCP Blanking Time
POWER MOSFET
Highside
Internal BOOT1, BOOT2 Refresh
Lowside
PHASE Leakage Current
PHASE Rise Time
6. Test Condition: V
7. Established by both current sense amplifier gain test and current sense amplifier output test @ I
8. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established
not included.
by characterization and are not production tested.
PARAMETER
IN
= 28V, FB forced above regulation point (0.8V), no switching, and power MOSFET gate charging current
9
T
T
+85°C (Continued)
A
A
SYMBOL
= -40°C to +85°C, V
= +25°C. Boldface limits apply over the operating temperature range, -40°C to
R
t
T
R
T
RISE
I
HDS
HYS
LDS
SS
SD
SS1/2 = VDD
Rise
Fall
Percentage of the soft-start time
ISINK = 3mA
EN1/2 = 0V/5V
Low Level
Float Level
High Level
Falling Edge
Rising Edge
Hysteresis
SYNCIN = 0V/5V
Measured from rising edge to rising
edge, if duty cycle is 50%
ISYNCOUT = 3mA
Rising Threshold
Hysteresis
(Note 7)
I
I
EN1/2 = PHASE1/2 = 0V
V
PHASE
PHASE
IN
= 25V
= 100mA
= 100mA
ISL85033
ISL85033
TEST CONDITIONS
IN
= 4.5V to 28V, unless otherwise noted. Typical values are at
V
(Note 8)
CC
82.5
MIN
100
600
1.5
1.4
1.0
1.1
4.1
-1
2
- 0.3 V
CC
L
85.5
0.08
TYP
100
200
180
150
2.5
1.4
1.6
5.1
91
20
60
75
10
10
10
= 0A.
2
1
-0.08
(Note 8) UNITS
1000
4000
MAX
300
150
300
3.5
2.6
0.8
1.4
1.9
0.3
6.1
94
1
December 8, 2010
FN6676.2
mV
kHz
mV
mΩ
ms
µA
µA
nA
°C
°C
nA
%
%
%
ns
ns
ns
Ω
V
V
V
V
V
V
V
A
°