LTC3850EUF#PBF Linear Technology, LTC3850EUF#PBF Datasheet - Page 19

• Manufacturer Part Number: LTC3850EUF#PBF
• Description: IC CNTRLR STP DWN SYNC 28-QFN
• Manufacturer: Linear Technology
• Series: PolyPhase®r
• Type: Step-Down (Buck)r

Specifications of LTC3850EUF#PBF

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.8 ~ 23.3 V
• Current - Output: 100mA
• Frequency - Switching: 250kHz ~ 780kHz
• Voltage - Input: 4 ~ 24 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-QFN
• Primary Input Voltage: 24V
• No. Of Outputs: 2
• Output Current: 100mA
• No. Of Pins: 28
• Operating Temperature Range: -40°C To +85°C
• Msl: MSL 1 - Unlimited
• Supply Voltage Range: 4V To 24V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

APPLICATIONS INFORMATION
TK/SS2
V
OUT1
(5a) Coincident Tracking
PIN
TO
(6a) Coincident Tracking Setup
TIME
R3
R4
R1
R2
Figure 5. Two Different Modes of Output Voltage Tracking
Figure 6. Setup for Coincident and Ratiometric Tracking
TO
V
PIN
FB1
Figure 7. Equivalent Input Circuit of Error Amplifier
TK/SS2
38501 F03a
0.8V
V
FB2
V
V
V
PIN
OUT1
OUT2
FB2
TO
D1
R3
R4
I
D2
38501 F07
V
OUT2
I
D3
+
–
EA2
V
TK/SS2
OUT1
PIN
(6b) Ratiometric Tracking Setup
TO
R1
R2
(5b) Ratiometric Tracking
LTC3850/LTC3850-1
TO
V
PIN
FB1
V
TIME
PIN
FB2
TO
R3
R4
38501 F06
V
OUT2
38501 F03b
V
V
OUT1
OUT2
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