RT9212 Datasheet, PDF (5/14 Pages) Richtek Technology Corporation – Dual 5V Synchronous Buck PWM DC-DC and Linear Power Controller

Preliminary
RT9212
Absolute Maximum Ratings (Note 1)
z Supply Voltage, V_CC ------------------------------------------------------------------------------------------------- 7V
z BOOT, V_BOOT - V_PHASE ----------------------------------------------------------------------------------------------- 7V
z Input, Output or I/O Voltage ---------------------------------------------------------------------------------------- GND-0.3V to 7V
z Package Thermal Resistance
TSSOP-24, θ_JA -------------------------------------------------------------------------------------------------------- 100°C/W
z Junction Temperature ------------------------------------------------------------------------------------------------ 150°C
z Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------- 260°C
z Storage Temperature Range --------------------------------------------------------------------------------------- − 65°C to 150°C
z ESD Susceptibility (Note 2)
HBM (Human Body Mode) ----------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ------------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 3)
z Supply Voltage, V_CC ------------------------------------------------------------------------------------------------- 5V ± 5 %
z Ambient Temperature Range --------------------------------------------------------------------------------------- 0°C to 70°C
z Junction Temperature Range --------------------------------------------------------------------------------------- 0°C to 125°C
Electrical Characteristics
(VCC = 5V, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
V_CC Supply Current
Nominal Supply Current
Shutdown Supply
Power-On Reset
I_CC
I_CCSD
OCSET1/SD, OCSET2/SD = V_CC;
UGATE1 & 2, LGATE1 & 2 Open
(OCSET1/SD, OCSET2/SD) = 0V
POR Threshold
Hysteresis
Reference
Error Amp Reference Voltage
Tolerance
Error Amp Reference
Oscillator
V_CCRTH
V_{OCSET1/SD, OCSET2/SD} = 4.5V
V_CC Rising
V_CCHYS V_{OCSET1/SD, OCSET2/SD} = 4.5V
Δ_VEAR
V_REF
V_CC = 5V
Free Running Frequency
f_OSC V_CC = 5V
Ramp Amplitude
ΔV_OSC
V1 Error Amplifier (External Compensation)
DC Gain
Gain-Bandwidth Product
GBW
Slew Rate
SR
COMP = 10pF
Min Typ Max Units
--
5
-- mA
--
3
-- mA
3.7 4.1 4.5 V
-- 0.5 --
V
--
--
2
%
0.784 0.8 0.816 V
275 300 325 kHz
-- 1.9 -- V_P-P
-- 90 -- dB
-- 10 -- MHz
--
6
-- V/μs
To be continued
DS9212-05 March 2007
www.richtek.com
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