MC34713EP Freescale, MC34713EP Datasheet - Page 3

• Manufacturer Part Number: MC34713EP
• Manufacturer: Freescale

Specifications of MC34713EP

• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Pin Count: 24
• Mounting: Surface Mount
• Package Type: QFN
• Case Length: 4mm
• Screening Level: Industrial
• Lead Free Status / RoHS Status: Compliant

Table 1. 34713 Pin Definitions
Analog Integrated Circuit Device Data
Freescale Semiconductor
Pin Number
12,13,14
15,16,17
18,19,20
A functional description of each pin can be found in the Functional Pin Description section beginning on
22,23
5, 8
10
11
21
24
1
2
3
4
6
7
9
Pin Name
VREFIN
PGND
FREQ
VOUT
BOOT
COMP
PVIN
VDDI
GND
ILIM
INV
SW
VIN
PG
NC
SD
Pin Function
Passive
Passive
Passive
Passive
Ground
Ground
Output
Output
Output
Supply
Supply
None
Input
Input
Input
Input
FREQ
GND
ILIM
PG
NC
SD
Frequency Adjustment Buck converter switching frequency adjustment pin
Power-Circuit Supply
Logic-Circuit Supply
1
2
3
Voltage Tracking
Reference Input
4
5
6
Switching Node
Internal Voltage
Output Voltage
Discharge FET
Formal Name
Signal Ground
Compensation
Error Amplifier
Inverting Input
Power Ground
Power Good
No Connect
Shutdown
Regulator
Soft Start
Bootstrap
Figure 3. 34713 Pin Connections
24
Input
Input
7
PIN CONNECTIONS
23
8
Transparent
Top View
PIN 25
22
9
Analog signal ground of IC
Soft Start adjustment
Active-low (open drain) power-good status reporting pin
No internal connections to these pins. Recommend attaching a 0.1 µF
capacitor from pin 8 to GND.
Shutdown mode input control pin
Voltage Tracking Reference voltage input
Buck converter external compensation network pin
Buck converter error amplifier inverting input pin
Discharge FET drain connection (connect to buck converter output
capacitors)
Ground return for buck converter and discharge FET
Buck converter power switching node
Buck converter main supply voltage input
Bootstrap switching node (connect to bootstrap capacitor)
Logic circuits supply voltage input
Internal Vdd Regulator (connect filter capacitor to this pin)
10
21
11
20
19
12
18
17
16
15
14
13
PVIN
PGND
PGND
SW
SW
SW
Definition
page
PIN CONNECTIONS
10.
34713
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