r2j20701np Renesas Electronics Corporation., r2j20701np Datasheet - Page 7

• Manufacturer Part Number: r2j20701np
• Description: Peak Current Mode Synchronous Buck Controller With Power Mosfets
• Manufacturer: Renesas Electronics Corporation.

R2J20701NP
Electrical Characteristics
Supply
5-V
regulator
5.25-V
regulator
Remote
On/off
Reference
current
generator
Oscillator
SYNC and
pulse
generator
Error
amplifier
Note:
REJ03G1459-0300 Rev.3.00 Jun 20, 2007
Page 7 of 27
1. These are reference values for design and have not been 100% tested in production.
VIN start threshold
VIN shutdown threshold
UVLO hysteresis
Input bias current
Input shutdown current
Output voltage
Line regulation
Load regulation
Output voltage
Disable threshold
Enable threshold
Input current
IREF pin voltage
CT oscillating frequency
SW switching frequency
CT higher trip voltage
CT lower trip voltage
CT source current
CT sink current
CT threshold for two-
phase operation
CT threshold for
synchronous operation
SYNC frequency
SYNC high voltage
SYNC low voltage
SYNC input threshold
Feedback voltage
Input bias current
Output source current
Output sink transient
current
Voltage gain
Band width
Resistance connected to
the Ishare pin
Item
VH
VL
dUVL
Iin
Isd
Vreg
Vreg-line
Vreg-load
Vdrv
Voff
Von
Ion/off
VIref
Fct
Fsw
Vhct
Vlct
Ict-src
Ict-snk
Vct-two
Vct-one
Vh-sync
Vl-sync
Vsync
Vfb
Ifb
Io-src
Io-snk
Av
BW
Rshare
Fsync
Symbol
–170
6.45
5.04
–0.1
Min
418
150
418
594
150
6.8
3.0
4.8
1.0
2.0
0.8
4.0
1.0
5.0
0.5
2.6
3.6
36
–5
–8
70
—
—
—
—
—
—
0
(Ta = 25°C, VIN = VCIN = 12 V, unless otherwise specified)
0.35 *
930 *
–160
80 *
15 *
6.85
5.25
10.6
Typ
465
160
465
600
200
100
3 *
2 *
7.2
4.5
5.0
1.3
2.5
2.7
4.0
1.0
5.0
2.0
2.0
73
–3
—
0
0
1
1
1
1
1
1
–150
+0.1
Max
7.25
5.46
19.0
606
110
512
170
512
250
130
6.0
3.0
7.6
5.2
1.6
3.0
5.0
2.8
4.4
1.2
1.0
+5
+2
—
—
—
—
—
—
—
Unit
MHz
kHz
kHz
kHz
mA
mA
mV
mV
mV
mA
k:
PA
PA
PA
PA
PA
dB
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
CT = 68 pF,
Duty cycle = 50%
On/off = 0 V
VIN = 10 to 16 V
Ireg = 0 to 10 mA
Von/off = 1 V
Riref = 27 k:
CT = 68 pF
CT = 68 pF
CT = 68 pF
CT = 68 pF
CT = 1.5 V
CT = 3.5 V
CT = 68 pF
Rsync = 51 k: to GND
Rsync = 51 k: to REG5
CT = 0 V or 5 V
TRK-SS = 1 V
FB = 0.6 V
EO = 4 V, FB = 0 V
EO = 1 V, FB = 1 V
EO = 0 V. Ishare = 1 V
Test Conditions