r2j20701np Renesas Electronics Corporation., r2j20701np Datasheet - Page 11
![no-image](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__sml.jpg)
r2j20701np
Manufacturer Part Number
r2j20701np
Description
Peak Current Mode Synchronous Buck Controller With Power Mosfets
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R2J20701NP.pdf
(28 pages)
R2J20701NP
Application Example
Start-up Settings
Case 1)
Case 2)
REJ03G1459-0300 Rev.3.00 Jun 20, 2007
Page 11 of 27
R3
R4
R
C
Coincident tracking
Standalone or master chip in parallel operation
With the RC network on the TRK-SS pin, the voltage on the pin should ramp up slowly.
The TRS-SS signal for channel two is the voltage from Vout1 after division by a resistor network. Vout1
must be greater than Vout2. Cross-talk is not generated between the channels.
R
C
voltage
Output
TRK-SS
TRK-SS
From Vout1
REG5
REG5
TRK-SS
Channel 1
Channel 2
REG5
FB
FB
SW
SW
ON/OFF
TRK-SS
Vout1
Vout2
Vout
R1
R2
R3
R4
TSS =
Vout1 (nominal) = 0.6 V
Vout2 (nominal) = 0.6 V
CR
Ln (1
Time
0.6 V / 5 V)
0.6 V
(R1 + R2) / R2
(R3 + R4) / R4
Vout1
Vout2
(s)