MC34717EP Freescale Semiconductor, MC34717EP Datasheet - Page 3

• 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
Analog Integrated Circuit Device Data
Freescale Semiconductor
Pin Number
A functional description of each pin can be found in the Functional Pin Description section beginning on
9, 26
10
11
12
13
1
2
3
4
5
6
7
8
Pin Name
VREFIN
BOOT1
PGND1
VOUT1
COMP1
COMP2
PVIN1
SW1
INV1
INV2
NC
PG
SD
Pin Function
Passive
Ground
Supply
Output
Output
Output
None
Input
Input
Input
Input
Input
Input
BOOT1
PGND1
PGND1
VOUT1
PVIN1
PVIN1
SW1
SW1
Power Input Voltage
Compensation Input
Compensation Input
Power Good Output
Reference Voltage
Switching Node
Shutdown Input
Discharge Path
Buck Convertor
Buck Convertor
Output Voltage
Formal Name
Power Ground
Error Amplifier
Inverting Input
Error Amplifier
Inverting Input
1
5
4
2
3
No Connect
Bootstrap
Figure 3. 34717 Pin Connections
Signal
Input
26
6
PIN CONNECTIONS
25
7
24
8
Transparent
23
Top View
9
PIN 27
Channel 1 Bootstrap capacitor input pin
Channel 1 Buck converter power input
Channel 1 Buck converter switching node
Channel 1 Buck converter and discharge MOSFETs power ground
Channel 1 Buck converter output voltage discharge pin
Channel 1 Buck converter error amplifier inverting input
Channel 1 Buck converter external compensation network input
Voltage tracking reference voltage input
No internal connections to this pin. Recommend attaching a 0.1 µF
capacitor from pin 9 to GND.
It is an active low open drain power good status reporting output
Shutdown mode input control pin
Channel 2 Buck converter external compensation network input
Channel 2 Buck converter error amplifier inverting input
10
22
21
11 12 13
20
19
17
16
15
18
14
BOOT2
PVIN2
PVIN2
SW2
SW2
PGND2
PGND2
VOUT2
Definition
page
PIN CONNECTIONS
12.
34717
3