ISL6442 Datasheet, PDF (3/16 Pages) Intersil Corporation – Dual (180° Out-of-Phase) PWM and Linear Controller

Typical Application Schematics
VOLTAGE INPUTS REQUIRED
VIN (4.5V TO 24V) = VIN1 = VIN2
VCC (5V; INTERNAL IF VIN > 5.6V)
VIN3 (≤ VCC) FOR LINEAR
TYPE3 COMPENSATION SHOWN
C₁₀₂
VOUT1
R₁₀₂ C₁₀₁
R₁₀₁
R₁₀₃
C₁₀₃
C₂₀₂
R₁₀₀
VOUT2
R₂₀₂
R₂₀₁
C₂₀₁
R₂₀₃ C₂₀₃
R₂₀₀
TYPE3 COMPENSATION SHOWN
VCC
R_PGOOD
C_SS1/EN1 C_SS2/EN2 R_RT
ISL6442
VCC
VCC
C_VCC C_VIN
VIN
OPTIONAL
CONNECTION
(FOR VIN = VCC = 5V)
R_OCSET1
VIN
VIN1 = VIN
COMP1
FB1
OCSET1
BOOT1
C_OCSET1
C_BOOT1
Q₁₀₁
C_IN1
UGATE1
COMP2
PHASE1
LGATE1
L₁₀₀
Q₁₀₂
VOUT1
C_OUT1
FB2
R_OCSET2
VIN2 = VIN
ISL6442
OCSET2
BOOT2
UGATE2
PHASE2
C_OCSET2
C_BOOT2
Q₂₀₁
C_IN2
L₂₀₀
VOUT2
PGOOD
RT
SS1/EN1
SS2/EN2
SGND
LGATE2
Q₂₀₂
C_OUT2
LCDR
LCFB
PGND
R₃₀₃
C₃^R₀₁₃₀₂
Q₃₀₁
VIN3
C_IN3
R₃₀₀
R₃₀₁
VOUT3
C_OUT3
FIGURE 2. ISL6442 TYPICAL APPLICATION
3
FN9204.2
October 31, 2008