FAN5307S18X Fairchild Semiconductor, FAN5307S18X Datasheet - Page 7

• Manufacturer Part Number: FAN5307S18X
• Description: IC CONV DC/DC STPDN 1.8V SOT23-5
• Manufacturer: Fairchild Semiconductor
• Type: Step-Down (Buck)r

Specifications of FAN5307S18X

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.8V
• Current - Output: 300mA
• Frequency - Switching: 1MHz
• Voltage - Input: 2.5 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5, SC-74A, SOT-25
• Output Voltage: 0.7 V to V In
• Mounting Style: SMD/SMT
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: FAN5307S18XTR; FAN5307S18X_NL; FAN5307S18X_NLTR; FAN5307S18X_NLTR

© 2005 Fairchild Semiconductor Corporation
FAN5307 • Rev. 1.0.5
Typical Performance Characteristics
T
A
=25°C, C
Figure 11. Efficiency vs. Load Current (V
100
Figure 13. Frequency vs. Temperature
95
90
85
80
75
70
65
1060
1040
1020
1000
Figure 9. Load Transient Response
Figure 7. Line Transient Response
980
960
940
920
900
880
0.01
IN
=C
-40 -30 -20 -10 0
OUT
=10µF, L=10µH, V
0.1
V
IN
=5.5V
V
V
IN
V
IN
IN
=3.6V
=2.5V
=2.5V
Load Current [mA]
V
Temperature [ºC]
IN
1
=5.5V
10 20 30 40 50 60 70 80
V
IN
10
=3.6V
OUT
=1.8V, unless otherwise noted.
100
OUT
1000
=1.8V)
7
Figure 14. Power Save (PRM) Mode Operation
Figure 12. No-Load Quiescent Current vs. V
Figure 10. Load Transient Response
26
24
22
20
18
16
14
2.5
3.0
T A =+85ºC
T A =-40ºC
T A =+25ºC
Figure 8. Startup
3.5
Input Voltage [V]
4.0
4.5
5.0
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5.5
IN