ISL8009AIRZ-TK Intersil, ISL8009AIRZ-TK Datasheet - Page 9

• Manufacturer Part Number: ISL8009AIRZ-TK
• Description: IC REG SYNC BUCK 1.5A 8-DFN
• Manufacturer: Intersil
• Type: Step-Down (Buck)r

Specifications of ISL8009AIRZ-TK

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.8 ~ 5.5 V
• Current - Output: 1.5A
• Frequency - Switching: 1.6MHz
• Voltage - Input: 2.7 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-DFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

Typical Applications
Block Diagram
POR
VFB
RSI
EN
SHUTDOWN
BANDGAP
20µF
SOFT- START
INPUT 2.7V TO 5.5V
0.736V
0.864V
9
C
0.8V
0.2V
1
100k
+
R 1
+
DELAY
+
EAMP
2ms
+
SCP
FIGURE 24. TYPICAL APPLICATION DIAGRAM
FIGURE 25. FUNCTIONAL BLOCK DIAGRAM
SLOPE
COMP
COMP
SLOP
+
E
27pF
390k
COMP
+
VIN
EN
POR
SKIP
ISL8009A
OSCILLATOR
ISL8009A
SKIP
OCP
GND
VFB
RSI
LX
+
+
CONTROLLER
PROTECTION
PWM/PFM
DRIVER
LOGIC
0.17V
SKIP
ZERO - CROSS
2.2µH
SHUTDOWN
0.85V
SENSING
20µF
L
CSA1
C
2
+ +
100k
R
1.8V TO 1.5A
3
OUTPUT
*C3 IS OPTIONAL TO IMPROVE
TRANSIENT RESPONSE. CHECK
LOOP BANDWIDTH BEFORE USE.
124k
R
2
GND
VIN
LX
*C
220pF
3
November 19, 2009
FN6656.2