MC34717EP Freescale Semiconductor, MC34717EP Datasheet - Page 10

• Manufacturer Part Number: MC34717EP
• Description: IC CONVERTER DDR 26QFN
• Manufacturer: Freescale Semiconductor

Specifications of MC34717EP

• Applications: Converter, DDR
• Voltage - Input: 3 ~ 6 V
• Number Of Outputs: 2
• Voltage - Output: 0.7 ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 26-QFN
• Output Voltage: 0.7 V to 3.6 V
• Output Current: 5 A
• Input Voltage: 3 V to 6 V
• Switching Frequency: 1 MHz
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• No. Of Outputs: 2
• Power Dissipation Pd: 2.03W
• No. Of Pins: 26
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 4. Dynamic Electrical Characteristics
values noted reflect the approximate parameter means at T
10
CHANNEL 1 BUCK CONVERTER (PVIN1, SW1, PGND1, BOOT1, INV1, COMP1, ILIM1)
CHANNEL 2 BUCK CONVERTER (PVIN2, SW2, PGND2, BOOT2, INV2, COMP2, ILIM2)
OSCILLATOR (FREQ)
Notes
34717
ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
Switching Node (SW1) Rise Time
(P
Switching Node (SW1) Fall Time
(P
Minimum OFF Time
Minimum ON Time
Soft Start Duration (Normal Mode)
Over-current Limit Timer
Over-current Limit Retry Timeout Period
Output Under-voltage/Over-voltage Filter Delay Timer
Switching Node (SW2) Rise Time
(P
Switching Node (SW2) Fall Time
(P
Minimum OFF Time
Minimum ON Time
Soft Start Duration (Normal Mode)
Over-current Limit Timer
Over-current Limit Retry Timeout Period
Output Under-voltage/Over-voltage Filter Delay Timer
18.
19.
20.
Characteristics noted under conditions 3.0 V ≤ V
VIN
VIN
VIN
VIN
= 3.3 V, I
= 3.3 V, I
= 3.3 V, I
= 3.3 V, I
Design information only, this parameter is not production tested.
The regulator has the ability to enter into pulse skip mode when the inductor current ripple reaches the threshold for the LS zero detect,
which has a typical value of 500 mA.
Oscillator frequency is ±10%
OUT1
OUT1
OUT2
OUT2
= 5.0 A)
= 5.0 A)
= 5.0 A)
= 5.0 A)
(20)
Characteristic
(18)
(18)
(18)
(18)
DYNAMIC ELECTRICAL CHARACTERISTICS
ILIM1: 1.25 to 1.49 V
ILIM2: 1.25 to 1.49 V
IN
≤ 6.0 V, - 40°C ≤ T
1.82 to 2.13 V
1.5 to 1.81 V
2.14 to 2.5 V
1.82 to 2.13 V
1.5 to 1.81 V
2.14 to 2.5 V
A
= 25°C under nominal conditions, unless otherwise noted.
A
t
t
TIMEOUT1
TIMEOUT2
Symbol
t
t
t
t
≤ 85°C, GND = 0 V, unless otherwise noted. Typical
t
FILTER1
t
FILTER2
OFFMIN
OFFMIN
t
t
t
t
ONMIN
ONMIN
FALL1
t
FALL2
t
RISE1
RISE2
t
t
LIM1
LIM2
SS1
SS2
Min
5.0
5.0
80
80
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Analog Integrated Circuit Device Data
0
12.0
0
Typ
150
150
8.0
5.0
3.2
1.6
0.8
0.4
3.2
1.6
0.8
0.4
10
28
10
(19)
(19)
-
-
-
-
Freescale Semiconductor
Max
120
120
25
25
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Unit
ms
ms
ms
ms
ms
ms
ns
ns
ns
ns
µs
ns
ns
ns
ns
µs