ISL6539IAZ Intersil, ISL6539IAZ Datasheet - Page 7

• Manufacturer Part Number: ISL6539IAZ
• Description: IC CTRLR DDR DRAM, SDRAM 28QSOP
• Manufacturer: Intersil

Specifications of ISL6539IAZ

• Applications: Controller, DDR DRAM, SDRAM
• Voltage - Input: 3.3 ~ 18 V
• Number Of Outputs: 2
• Voltage - Output: 0.9 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-QSOP
• Peak Reflow Compatible (260 C): Yes
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

0.01µF
0.01 F
CFB1
V1 (2.5V)
CFB1
VDDQ (2.5V)
µ
RFB11
17.8k
FIGURE 4. TYPICAL APPLICATION AS DDR MEMORY POWER SUPPLY, VOUT1 = 2.5V, VOUT2 = 1.25V
RFB12
10k
FIGURE 3. TYPICAL APPLICATION CIRCUIT AS DUAL SWITCHER, VOUT1 = 2.5V, VOUT2 = 1.8V
17.8k
RFB1
RFB12
10k
CO13
220µF
CO13
220µF
V
IN
VIN
7
CO11
4.7µF
CIN1
10µF
CO11
4.7µF
CIN1
10µF
4.7µH
LO1
4.6µF
LO1
CSOFT1
CSOFT1
0.01µF
FDS6912A
0.01µF
FDS6912A
BAT54W
0.15µF
Q1
BAT54W
CB11
Q1
0.15µF
CBT1
D1
D1
4.7µF
CDC
RS1
2.0k
CDC
4.7µF
RSET1
100k
RBT1
0Ω
RS1
2.0k
RSET1
100k
RBT1
0
Ω
ISL6539
GND
BOOT1
UGATE1
PHASE1
ISEN1
LGATE1
PGND1
GND
VSEN1
PG1
EN1
SOFT1
OCSET1
GND
BOOT1
UGATE1
PHASE1
ISEN1
LGATE1
PGND1
GND
VSEN1
PG1
EN1
SOFT1
OCSET1
VIN
ISL6539
VIN
ISL6539
VCC
U1
U1
U1
VCC
UGATE2
PHASE2
OCSET2
LGATE2
PG2_REF
BOOT2
PGND2
VSEN2
UGATE2
PHASE2
SOFT2
LGATE2
ISEN2
BOOT2
PGND2
VSEN2
SOFT2
DDR
GND
ISEN2
PG2
EN2
GND
DDR
EN2
100k
RSET2
RS2
2.0k
RBT2
OCSET2_VDDQ/2
0Ω
RS2
1.0k
RBT2
0Ω
CSOFT2 (N/U)
0.01µF
BAT54W
D2
CBT2
0.15µF
D2
BAT54W
FDS6912A
FDS6912A
0.15µF
CBT2
FDS6912A
Q2
Q2
Q2
CSOFT2
0.01µF
VDDQ
0.1µF
CREF
CREF
4.7µF
1.5µH
4.7µH
LO2
LO2
CF
VREF (VDDQ/2)
220µF
CO21
CO21
220µF
CO21
CIN2
10µF
CIN2
4.7µF
VCC (5V)
VCC (5V)
4.7 µF
CO22
CO22
4.7µF
RFB21
RFB22
RD1
10k
RD2
10k
VDDQ/2
V2 (1.8V)
10k
10k
VTT (1.25V)
VDDQ
April 29, 2010
CFB2
0.01µF
FN9144.6