MC34164-3 Datasheet, PDF (9/23 Pages) Freescale Semiconductor, Inc – 3.0 A 1.0 MHz Fully Integrated DDR Switch-Mode Power Supply

ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
Table 4. Dynamic Electrical Characteristics
Characteristics noted under conditions 3.0 V ≤ V_IN ≤ 6.0 V, -40°C ≤ T_A ≤ 85°C, GND = 0 V unless otherwise noted. Typical
values noted reflect the approximate parameter means at T_A = 25°C under nominal conditions unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
BUCK CONVERTER (PVIN, SW, GND, BOOT)
Switching Node (SW) Rise Time ⁽¹⁹⁾
(P_VIN = 3.3 V, I_OUT = ±3.0 A)
Switching Node (SW) Fall Time ⁽¹⁹⁾
(P_VIN = 3.3 V, I_OUT = ±3.0 A)
Soft Start Duration
(Normal Mode)
t_RISE
-
14
-
ns
t_FALL
-
20
-
ns
t_SS
1.3
-
2.6
ms
Over Current Limit Timer
Over Current Limit Retry Time-out Period
Output Undervoltage/Overvoltage Filter Delay Timer
OSCILLATOR (FREQ)
Oscillator Default Switching Frequency ⁽¹⁸⁾
(FREQ = GND)
t_LIM
-
10
-
ms
t_TIMEOUT
80
-
120
ms
t_FILTER
5.0
-
25
µs
F_SW
-
1.0
-
MHz
Oscillator Switching Frequency Range
CONTROL AND SUPERVISORY (STBY, SD, PG)
F_SW
200
-
1000
kHz
PG Reset Delay
Thermal Shutdown Retry Time-out Period ⁽¹⁹⁾
t_PGRESET
8.0
-
12
ms
t_TIMEOUT
80
-
120
ms
Notes
18. Oscillator Frequency tolerance is ±10%.
19. Design information only, this parameter is not production tested.
Analog Integrated Circuit Device Data
Freescale Semiconductor
34712
9