SP7656EN2-L/TR Exar Corporation, SP7656EN2-L/TR Datasheet - Page 8

• Manufacturer Part Number: SP7656EN2-L/TR
• Description: 600kHz High Input Voltage, Internally Compensated SP7656Non-Synchronous Step-Down DC/DC Voltage Regulator
• Manufacturer: Exar Corporation
• Series: Power Blox™r
• Type: Step-Down (Buck)r

Specifications of SP7656EN2-L/TR

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 0.6 V ~ 28 V
• Current - Output: 3A
• Frequency - Switching: 600kHz
• Voltage - Input: 4.5 V ~ 29 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: *
• Package / Case: 8-SOIC (0.154", 3.90mm Width) Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

100
Inductor Ripple
Current 2A/div
LX
Output Ripple
90
80
70
60
50
40
0.0
Figure 3- Efficiency, Natural convection
11/07/08 SP7656 PowerBlox
Figure 5- Output Ripple
Vout=3.3V, Ta= 25°C
at Vout=3.3V, Ta= 25°C
E ffic ie n c y v s Io u t (3.3Vo u t)
1.0
V in= 12V
V in= 24V
Io u t (A)
2.0
3.0
Figure 2- Typical application circuit
4.0
8
100
Figure 4- Efficiency Natural convection
95
90
85
80
75
70
65
60
0.0
Vin
Vout
at Vout=12V, Ta= 25°C,
Iout
2A/div
E ffic ie n c y v s Io u t (12Vo u t)
Vout=3.3V, Ta= 25°C
1.0
Figure 6- Start-up
Application Information
V in= 14V
V in= 24V
V in= 29V
Copyright 2008 EXAR Corporation
Io u t (A)
2.0
3.0
4.0