RT2701
Electrical Characteristics
(V
CC
= 12V, No Load, T
A
=
−40°C
to 85°C, unless otherwise specified)
Parameter
Supply Input
Supply Current
Shutdown Current
Power On Reset
VCC POR Threshold
Symbol
Test Conditions
Min
--
--
--
--
Typ
3.5
--
4.2
0.3
2
--
Max
5
600
4.5
--
2.02
2
Unit
mA
μA
V
V
V
V
I
VCC
+ I
PVCC
EN = 3.3V, Not Switching
I
CC
+ I
PVCC
V
VCC_th
EN = 0V
VCC Rising
Power On Reset Hysteresis V
VCC_hys
Reference
Reference Output
Reference Input Range
Start Up Delay
Initial Soft-Start time
Reference Change Delay
Time
Error Amplifier
Input Offset Voltage
DC Gain
Gain Bandwidth Product
Slew Rate
Output Voltage Range
MAX Source Current
Input Offset Voltage
Impedance at Neg. Input
Impedance at Pos Input
Maximum Input Range
TON Setting
On-Time Setting
Protection
Absolute Over Voltage
Protection Threshold
Relative Over Voltage
Protection Threshold
V
OVABS
V
REL_OV
With Respect to V
OUT(MAX)
With Respect to V
OUT
t
ON
I
RTON
= 62μA
GBW
SR
V
COMP
I
OUTEA
V
OSCS
R
CSN
R
CSP
V
CSP
−
V
CSN
V
OSEA
R
L
= 47kΩ
C
LOAD
= 5pF
C
LOAD
= 10pF (Gain =
−4,
R
f
= 47k, V
OUT
= 0.5V to 3V)
R
L
= 47kΩ (max. depend on VSET
max.)
V
COMP
= 2V
t
b
t
c
Initially, V
OUT
= 0.1V to 1.2V
V
REF
V
SET
(No Load, Active Mode )
VSET pin (this max. voltage will affect
V
COMP
max.)
1.98
0.5
--
--
1.5
300
--
--
ms
μs
−8
--
--
--
0.5
--
−2
1
1
--
315
--
80
10
5
--
250
--
--
--
--
350
8
--
--
--
2
--
2
--
--
65
385
mV
dB
MHz
V/μs
V
μA
mV
MΩ
MΩ
mV
ns
Current Sense Amplifier (for Droop and OCP and Phase Shedding)
2.1
--
2.2
138
--
--
V
%
Copyright
©
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
6
DS2701-00 May 2013
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
