7
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RT8207L/M
©
Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
VTT LDO for RT8207M
VTTSNS
S3
VTTREF
VTT
VLDOIN
VTTGND
S5
Non-tracking
Discharge
+
-
Thermal
Shutdown
+
-
+
-
+
-
+
-
+
-
110% V
VTTREF
90% V
VTTREF
GND
VDDQ
8
DS8207L/M-08 September 2016www.richtek.com
RT8207L/M
©
Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Absolute Maximum Ratings (Note 1)
Supply Input Voltage, TON to GND ------------------------------------------------------------------------------------- 0.3V to 32V
BOOT to GND
DC------------------------------------------------------------------------------------------------------------------------------ 0.3V to 36V
< 100ns ----------------------------------------------------------------------------------------------------------------------- 5V to 42V
BOOT to PHASE
DC------------------------------------------------------------------------------------------------------------------------------ 0.3V to 6V
< 100ns ----------------------------------------------------------------------------------------------------------------------- 5V to 7.5V
VDD, VDDP, CS, MODE, S3, S5, VTTSNS, VDDQ, VTTREF, VTT, VLDOIN,
FB, PGOOD to GND ------------------------------------------------------------------------------------------------------- 0.3V to 6V
PGND, VTTGND to GND -------------------------------------------------------------------------------------------------- 0.3V to 0.3V
PHASE to GND
DC------------------------------------------------------------------------------------------------------------------------------ 5V to 30V
< 100ns ----------------------------------------------------------------------------------------------------------------------- 10V to 42V
UGATE to GND
DC------------------------------------------------------------------------------------------------------------------------------ 5V to 36V
< 100ns ----------------------------------------------------------------------------------------------------------------------- 10V to 42V
LGATE to GND
DC------------------------------------------------------------------------------------------------------------------------------ 0.3V to 6V
< 100ns ----------------------------------------------------------------------------------------------------------------------- 5V to 7.5V
UGATE to PHASE
DC------------------------------------------------------------------------------------------------------------------------------ 0.3V to 6V
< 100ns ----------------------------------------------------------------------------------------------------------------------- 5V to 7.5V
The Other Pins -------------------------------------------------------------------------------------------------------------- 0.3V to 6.5V
Power Dissipation, P
D
@ T
A
= 25°C
WQFN-24L 4x4 ------------------------------------------------------------------------------------------------------------- 1.923W
WQFN-20L 3x3 ------------------------------------------------------------------------------------------------------------- 1.471W
Package Thermal Resistance (Note 2)
WQFN-24L 4x4, θ
JA
-------------------------------------------------------------------------------------------------------- 52°C/W
WQFN-24L 4x4, θ
JC
------------------------------------------------------------------------------------------------------- 7°C/W
WQFN-20L 3x3, θ
JA
-------------------------------------------------------------------------------------------------------- 68°C/W
WQFN-20L 3x3, θ
JC
------------------------------------------------------------------------------------------------------- 7.5°C/W
Junction Temperature ------------------------------------------------------------------------------------------------------ 150°C
Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------------- 260°C
Storage Temperature Range --------------------------------------------------------------------------------------------- 65°C to 150°C
ESD Susceptibility (Note 3)
HBM (Human Body Model) ----------------------------------------------------------------------------------------------- 2kV
Recommended Operating Conditions (Note 4)
Supply Input Voltage, V
IN
------------------------------------------------------------------------------------------------ 4.5V to 26V
Control Voltage, V
DD
, V
VDDP
--------------------------------------------------------------------------------------------- 4.5V to 5.5V
Junction Temperature Range --------------------------------------------------------------------------------------------- 40°C to 125°C
Ambient Temperature Range --------------------------------------------------------------------------------------------- 40°C to 85°C
9
DS8207L/M-08 September 2016 www.richtek.com
RT8207L/M
©
Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Electrical Characteristics
(V
IN
= 15V, V
DD
= V
VDDP
= 5V, R
TON
= 1MΩ, T
A
= 25°C, unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
PWM Controller
Quiescent Supply Current
(V
DD
+ V
DDP
)
FB forced above the regulation point,
V
S5
= 5V, V
S3
= 0V
-- 470 1000 A
TON Operating Current R
TON
= 1M -- 15 -- A
I
VLDOIN
BIAS Current V
S5
= V
S3
= 5V, V
TT
= No Load -- 1 -- A
I
VLDOIN
Standby Current V
S5
= 5V, V
S3
= 0V, V
TT
= No Load -- 0.1 10 A
V
DD
+ V
VDDP
-- 1 10
TON -- 0.1 5
S5/S3 = 0V 1 0.1 1
Shutdown Current
(V
S5
= V
S3
= 0V)
I
SHDN
I
VLDOIN
-- 0.1 1
A
FB Reference Voltage V
REF
V
DD
= 4.5V to 5.5V 0.742 0.75 0.758 V
FB = GND -- 1.5 --
Fixed VDDQ Output
Voltage
FB = V
DD
-- 1.8 --
V
FB Input Bias Current FB = 0.75V 1 0.1 1 A
VDDQ Voltage Range 0.75 -- 3.3 V
On-Time R
TON
= 1M, V
VDDQ
= 1.25V 267 334 401 ns
Minimum Off-Time 250 400 550 ns
VDDQ Input Resistance -- 100 -- k
VDDQ Shutdown
Discharge Resistance
V
S5
= GND -- 15 --
Current Sensing
CS Sink Current V
CS
> 4.5V, After UV Blank Time 9 10 11 A
Current Comparator
Offset
GND PHASE, R
CS
= 5k 15 -- 15 mV
Zero Crossing Threshold GND PHASE 5 -- 10 mV
Fault Protection
GND PHASE, R
CS
= 5k 35 50 65
Current Limit (Positive)
GND PHASE, R
CS
= 20k 170 200 230
mV
Under Voltage Protection
Threshold
V
UVP
60 70 80 %
Over Voltage Protection
Threshold
V
OVP
With respect to error comparator
threshold
110 115 120 %
Over Voltage Fault Delay
FB forced above over voltage
threshold
-- 20 -- s
VDD POR Threshold
Rising edge, hysteresis = 120mV,
PWM disabled below this level
3.9 4.2 4.5 V
Under Voltage Blank Time From S5 signal going high -- 5 -- ms
Thermal Shutdown T
SD
-- 165 -- °C
Thermal Shutdown
Hysteresis
T
SD
-- 10 -- °C

RT8207LGQW

Mfr. #:
Manufacturer:
Description:
IC REG CTRLR DDR 1OUT 24WQFN
Lifecycle:
New from this manufacturer.
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