LTC1922EG-1#PBF Linear Technology, LTC1922EG-1#PBF Datasheet - Page 7

• Manufacturer Part Number: LTC1922EG-1#PBF
• Description: IC CTLR PWM SYNC 20SSOP
• Manufacturer: Linear Technology

Specifications of LTC1922EG-1#PBF

• Pwm Type: Voltage/Current Mode
• Number Of Outputs: 1
• Frequency - Max: 1MHz
• Duty Cycle: 99%
• Buck: No
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: Yes
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SSOP
• Frequency-max: 1MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -

BLOCK DIAGRA
TI I G DIAGRA
W
U
COMP
RAMP
R
LEB
SS
CS
FB
6
4
2
7
5
3
BLANK
BLANK
1.2V
10.25V “ON”
SHUNT REG
600mV
6V “0FF”
400mV
W
UVLO
V
AMPLIFIER
W
15
RAMP
COMP
OUTD
NOTE: SHADED AREAS CORRESPOND TO POWER DELIVERY PULSES
CC
OUTA
OUTB
OUTC
CURRENT DOUBLER
OUTE
OUTF
ERROR
+
–
CURRENT LIMIT
PULSE BY PULSE
CURRENT LIMIT
SHUTDOWN
+
–
+
V
–
+
–
REF
12 A
0.4V
50k
REF AND LDO
COMPENSATION
ACTIVE DELAY
1.2V
SLOPE
14.9k
C
MODULATOR
T
V
/R
5V
REF
11
FAULT
LOGIC
PHASE
–
+
QB
Q
R
S
OSC
C
20
T
PASSIVE DELAY
19
SYNC
R
S
T
GND
1
QB
QB
Q
SBUS
9
RECTIFIER
PASSIVE
ACTIVE
DELAY
DELAY
DRIVE
LOGIC
SYNC
LTC1922-1
1922 TD
18
13
12
17
16
14
10
8
1922 • BD
PDLY
OUTA
OUTB
OUTE
OUTF
OUTC
OUTD
ADLY
7