RT9903GQV RICHTEK [Richtek Technology Corporation], RT9903GQV Datasheet - Page 5

• Manufacturer Part Number: RT9903GQV
• Description: 5 Channel DC/DC Converters IC with High-Efficiency Step-Up
• Manufacturer: RICHTEK [Richtek Technology Corporation]

Absolute Maximum Ratings
Recommended Operating Conditions
Electrical Characteristics
(V
DS9903-07 August 2007
Supply Voltage
VDD Operating Voltage
VDD Start-up Voltage
VDD Over Voltage Protection
Supply Current
Shutdown Supply Current
CH1 DC/DC Converter Supply
Current
CH2 DC/DC Converter & Charge
Pump Supply Current
CH3 DC/DC Converter Supply
Current
CH4 DC/DC Converter Supply
Current
Supply Input Voltage (V
LX1, LX2, LX3 Pins, INCD Pin -----------------------------------------------------------------------------------------
Other I/O Pin Voltage ----------------------------------------------------------------------------------------------------
Power Dissipation, P
VQFN-24L 4x4 ------------------------------------------------------------------------------------------------------------
Package Thermal Resistance (Note 3)
VQFN-24L 4x4, θ
Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------ 260°C
Operation Temperature Range -----------------------------------------------------------------------------------------
Junction Temperature Range ------------------------------------------------------------------------------------------- 0°C to 125°C
Storage Temperature Range -------------------------------------------------------------------------------------------
Maximum Output Voltage Setting ( V
Dimming Control Frequency Range, CH3 -------------------------------------------------------------------------- 200Hz to 900Hz
DD
=3.3V, T
A
Parameter
= 25°C, unless otherwise specification)
JA
------------------------------------------------------------------------------------------------------- 52°C/W
D
@ T
DD
) ---------------------------------------------------------------------------------------------
A
= 25°C
OUT1
V
V
I
I
I
I
I
OFF
VDD1
VDD2
VDD3
VDD4
Symbol
VDD
DD(OVP)
and V
(Note 1)
OUT2
Preliminary
VDD Pin Voltage
VDD Pin Voltage
VDD Pin Voltage
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
DD
VDD
FB1
EN1
EN3
VDD
FB2
EN1
EN3
VDD
FB3
EN1
EN3
VDD
FB4
EN1
EN3
) ---------------------------------------------------------- 17V
= 3.6V, V
= V
= V
= V
= V
= 3.3V, V
= 0V, V
= 0V, V
= 0V, V
= 0V, V
= 3.3V, V
= 0V, V
= 0V, V
=3.6V,
= 3.6V,
= 3.6V,
= 3.6V,
Test Condition
REF
REF
REF
REF
(Note 2)
EN4
EN2
EN4
EN2
EN2
EN4
+ 0.15V
+ 0.15V
+ 0.15V
+ 0.15V
EN1 to 4
EN2
EN4
= 0V
= 3.3V,
= 0V
= 0V,
= 0V,
= 3.3V
= 0V,
= 0V
= 0V
Min
2.4
1.5
--
--
--
--
--
6
0.01
Typ
200
210
250
200
--
--
--
−
−
1.923W
−
−
RT9903
−
To be continued
Max
www.richtek.com
250
260
300
250
0.3 to 7V
0.3V to 20V
40°C to 85°C
65°C to 150°C
5.5
0.3V to 7V
--
--
1
Units
μA
μA
μA
μA
μA
V
V
V
5