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SA57254-20GW Datasheet(PDF) 6 Page - NXP Semiconductors

Part # SA57254-20GW
Description  CMOS switching regulator (PWM controlled)
Download  18 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

SA57254-20GW Datasheet(HTML) 6 Page - NXP Semiconductors

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Philips Semiconductors
Product data
SA57254-XX
CMOS switching regulator (PWM controlled)
2003 Nov 11
6
VOUT
OUTPUT VOLTAGE
(20 mV/div)
VSW
SW VOLTAGE
(1 V/div)
t (10
µs/div)
SL01472
VIN = 1.8 V
Figure 9. Ripple voltage at IOUT = 200 µA.
VOUT
OUTPUT VOLTAGE
(20 mV/div)
VSW
SW VOLTAGE
(1 V/div)
t (10
µs/div)
SL01473
VIN = 1.8 V
Figure 10. Ripple voltage at IOUT = 10 mA.
VOUT
OUTPUT VOLTAGE
(20 mV/div)
VSW
SW VOLTAGE
(1 V/div)
t (10
µs/div)
SL01474
VIN = 1.8 V
Figure 11. Ripple voltage at IOUT = 60 mA.
VIN
INPUT VOLTAGE
(1 V/div)
VOUT
OUTPUT VOLTAGE
(1 V/div)
t (1 ms/div)
SL01475
IOUT = 60 mA
Figure 12. Start-up characteristic VIN: 0 V → 1.8 V.
IOUT
LOAD CURRENT
(20 mA/div)
VOUT
OUTPUT VOLTAGE
(50 mV/div)
t (200
µs/div)
SL01477
IOUT: 100 µA → 50 mA; VIN = 1.8 V
Figure 13. Output load regulation, increasing current.


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