MC34717EP Freescale Semiconductor, MC34717EP Datasheet - Page 4

• 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 1. 34717 Pin Definitions (continued)
4
34717
PIN CONNECTIONS
Pin Number
A functional description of each pin can be found in the Functional Pin Description section beginning on
22,23
14
15
16
17
18
19
20
21
24
25
27
Pin Name
PGND2
BOOT2
VOUT2
PVIN2
FREQ
ILIM1
ILIM2
VDDI
SW2
GND
GND
VIN
Pin Function
Ground
Ground
Ground
Output
Output
Output
Power
Power
Input
Input
Input
Input
Frequency Adjustment
Soft Start Adjustment
Soft Start Adjustment
Input Supply Voltage
Power Input Voltage
Switching Node
Discharge Path
Bootstrap Input
Output Voltage
Internal Supply
Formal Name
Power Ground
Signal Ground
Thermal Pad
Input CH 1
Input CH 2
Voltage
Input
Channel 2 Buck converter output voltage discharge pin
Channel 2 Buck converter and discharge MOSFETs power ground
Channel 2 Buck converter switching node
Channel 2 Buck converter power input
Channel 2 Bootstrap capacitor input pin
Channel 1 soft start adjustment
Channel 2 soft start adjustment
The buck converters switching frequency adjustment input
Power supply voltage of the IC
Analog ground of the IC
Internal Supply Voltage Output
Thermal pad for heat transfer. Connect the thermal pad to the analog
ground and the ground plane for heat sinking.
Analog Integrated Circuit Device Data
Definition
Freescale Semiconductor
page
12.