RT6212A/B
Parameter
Symbol
VEN_F
Test Conditions
Min
Typ
Max
Unit
VEN falling, RT6212A/BHRGJ6F
1.11
1.21
1.31
Feedback Voltage
4.5V ≤ VIN ≤ 18V,
RT6212A/BHGJ6F
0.788
0.8
0.812
Feedback Reference Voltage
VREF
V
4.5V ≤ VIN ≤ 18V,
RT6212A/BHRGJ6F
0.753 0.765 0.777
Internal MOSFET
High-Side On-Resistance
Low-Side On-Resistance
Current Limit
RDS(ON)_H VBOOT − VLX = 4.8V
--
--
163
86
--
--
mΩ
RDS(ON)_L
High-Side Switch Current Limit ILIM_H
--
5.8
3.3
--
--
A
Low-Side Switch Valley Current
ILIM_L
2.6
Limit
Switching Frequency
Switching Frequency
On-Time Timer Control
Minimum On-Time
fSW
400
500
640
kHz
ns
tON_MIN
35
60
85
Minimum Off-Time
tOFF_MIN
185
240
315
Output Under-Voltage and Over-Voltage Protections
OVP Trip Threshold
OVP detect
--
--
125
10
50
10
5
--
--
%
OVP Propagation Delay
µs
UVP detect
Hysteresis
45
--
55
--
UVP Trip Threshold
%
UVP Propagation Delay
Thermal Shutdown
--
--
µs
Thermal Shutdown Threshold
TSD
--
--
150
20
--
--
°C
Thermal Shutdown Hysteresis TSD
Note 1. Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are
stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may affect
device reliability.
Note 2. JA is measured under natural convection (still air) at T = 25C with the component mounted on a high
A
effective-thermal-conductivity four-layer test board on a JEDEC 51-7 thermal measurement standard. The first layer is
filled with copper. JA is measured at the lead of the package.
Note 3. Devices are ESD sensitive. Handling precaution recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
Copyright © 2017 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS6212A/B-05 July 2017
www.richtek.com
5
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
