MIC5164 Datasheet, PDF (4/23 Pages) Micrel Semiconductor – Dual Regulator Controller for DDR3 GDDR3/4/5 Memory and High-Speed Bus Termination

Micrel, Inc.
MIC5164
Electrical Characteristics⁽⁴⁾ (Continued)
T_A = 25°C = VDDQ = 1.5V; VCC = 5V, V_EN = V_CC, bold values indicate –40°C ≤ T_J ≤ +125°C, unless otherwise specified.
See test circuit 1 for test circuit configuration.
Parameter
Condition
Min. Typ. Max. Units
Power Good Output
Power Good Deglitch (Note 9)
Time after V_FB voltage has gone outside of PG
window
5
10
μs
Driver
High-Side Gate Drive Voltage
High-Side MOSFET Fully ON
High-Side MOSFET Fully OFF
4.8
4.97
V
0.03
0.2
V
Low-Side Gate Drive Voltage
Low-Side MOSFET Fully ON
Low-Side MOSFET Fully OFF
4.8
4.97
V
0.03
0.2
V
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. Devices are ESD sensitive. Handling precautions recommended. Human body model 1.5kΩ in series with 100pF.
4. Specification for packaged product only.
5. The V_TT voltage accuracy is measured as a delta voltage from the reference output (V_TT - V_REF).
6. Shutdown current is measured only on the VCC pin. The VDDQ pin will always draw a minimum amount of current when voltage is applied.
7. Start-up time is defined as the amount of time from EN = V_CC to V_HD = 90% of V_CC.
8. Power Good startup delay is defined as the amount of time from EN =VCC and V_FB is within ±10% of ½V_DDQ to V_PG = 90% of V_CC (V_FB = V_REF),
during startup (V_FB is the sense of V_TT).
9. Power Good deglitch is defined as the amount of time from the voltage at FB node going out of PG window (with 10mV overdrive voltage) to PG =
LOW.
June 2010
4
M9999-061510