SA57031-18UK PHILIPS [NXP Semiconductors], SA57031-18UK Datasheet
SA57031-18UK
Related parts for SA57031-18UK
SA57031-18UK Summary of contents
Page 1
... SA57031-XX Micropower 150 mA, low-noise, low dropout linear regulator with on/off Product data Supersedes data of 2003 Feb 24 INTEGRATED CIRCUITS 2003 Jun 23 ...
Page 2
... Micropower 150 mA, low-noise, low dropout linear regulator with on/off GENERAL DESCRIPTION The SA57031 is a 150 mA, fixed output voltage regulator designed to provide very low dropout voltage and low noise in battery powered and portable applications. The output voltage is preset to voltages between 1.8 to 5.0 Volts, in 100 mV increments. ...
Page 3
... PIN DESCRIPTION PIN SYMBOL A1 GND ON/OFF SA00633 Parameter 3 Product data SA57031-XX TEMPERATURE RANGE –40 to +85 C DESCRIPTION Device ground Voltage output Voltage input Control pin. Connect not used. I Min Max Unit –40 +150 C –40 +85 C –0.3 ...
Page 4
... ON/OFF Pull-down resistance ON/OFF V Output voltage (nominal Dropout voltage dropout PRESET OUTPUT VOLTAGES Part Number Min SA57031-25UK 2.450 SA57031-28UK 2.744 SA57031-30UK 2.940 SA57031-33UK 3.234 SA57031-36UK 3.528 2003 Jun unless otherwise specified. O CONDITIONS 150 0.25 V ON/OFF I ...
Page 5
... Philips Semiconductors Micropower 150 mA, low-noise, low dropout linear regulator with on/off TYPICAL PERFORMANCE CURVES Shown for the SA57031-28UK only amb 3 1mA O 2 100 mA O 2.0 1 1.0 0 INPUT VOLTAGE V (V) I Figure 3. Output voltage versus input voltage ...
Page 6
... IO = 100 mA –30 I –40 –50 –60 –70 –80 –90 125 150 0.01 0.10 SL01976 Figure 11. Ripple rejection. 100 125 SL01977 Figure 12. On/off control pin. 6 Product data SA57031-XX = 150 1.00 10.00 100.00 1000.00 FREQUENCY (kHz) SL01978 on/off ...
Page 7
... Figure 13. Line transient response 100 0 500 S Figure 14. Load transient response. 2003 Jun 0 V/div mV/div O SL01992 Figure 15. Load transient response 2 mA/div mV/div O SL01993 7 Product data SA57031- 100 mA O 500 1 mA/div mV/div O SL01994 ...
Page 8
... Micropower 150 mA, low-noise, low dropout linear regulator with on/off TECHNICAL DISCUSSION As illustrated in Figure 16, the SA57031 consists of a band-gap voltage reference, an error amplifier, P-channel pass transistor, current limit circuit and an internal feedback voltage divider. The output voltage is fed back through an internal resistor voltage divider connected to the V pin ...
Page 9
... The following points have to be kept in mind for good performance while using these devices. Input Capacitor An input capacitor of 2 required between the SA57031 input pin and the circuit ground. This capacitor must be located as close as possible to the V or GND pin (not more than 1 cm away from the I pin) and returned to a clean analog ground ...
Page 10
... Philips Semiconductors Micropower 150 mA, low-noise, low dropout linear regulator with on/off PACKING METHOD The SA57031-XX is packed in reels, as shown in Figure 18. BAG MOISTURE CAUTION PRINT GUARD BAND BARCODE LABEL ESD EMBOSSED PRE-PRINTED HYATT PATENT 2003 Jun 23 BARCODE LABEL ESD PRINT DRY-AGENT TAPE PRINTED PLANO BOX ...
Page 11
... IT’s must have the top copy tape. The end of trailer must be detached from reel. UNIT A0 B0 0.90 1.40 mm 0.03 0.03 2003 Jun 23 TAPE PULL OUT DIRECTION TAPE PULL OUT DIRECTION TOP VIEW 8.0 3.5 1.75 4.0 2.0 0.1 0.05 0.05 0.05 0.05 11 Product data SA57031- 4.0 1.55 0.60 0.58 0.1 0.03 0.03 0.03 SL02002 ...
Page 12
... Micropower 150 mA, low-noise, low dropout linear regulator with on/off WL-CSP4: wafer level, chip-scale package; 4 bumps X4 X9 BUMP DIMENSIONS (mm are the original dimensions) UNIT 1.32 0.82 mm 0.5 1.26 0.76 2003 Jun 0.23 0.42 0.5 0.866 0.212 0.433 0.13 0.38 12 Product data SA57031-XX X2 X10 X9 X10 0.10 0.06 SL02098 ...
Page 13
... Rev Date Description _2 20030623 Product data (9397 750 11664); ECN 853-2361 30063 dated 23 June 2003. Supersedes SA57031-XX_1 (9397 750 11001) of 2003 Feb 24. Modifications: WL-CSP4 package outline dimensional drawing modified. _1 20030224 Product data (9397 750 11001); ECN 853-2361 28634 dated 2002 Jul 18 ...