Datasheet LTC1704, LTC1704B (Analog Devices) - 2
| Hersteller | Analog Devices |
| Beschreibung | 550kHz Synchronous Switching Regulator Controller Plus Linear Regulator Controller |
| Seiten / Seite | 28 / 2 — ABSOLUTE AXI U. RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). ELECTRICAL … |
| Dateiformat / Größe | PDF / 356 Kb |
| Dokumentensprache | Englisch |
ABSOLUTE AXI U. RATI GS. PACKAGE/ORDER I FOR ATIO. (Note 1). ELECTRICAL CHARACTERISTICS. The
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Textversion des Dokuments
LTC1704/LTC1704B
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
Supply Voltage ORDER PART TOP VIEW VCC, PVCC .. 6V NUMBER BOOST ... 12V TG 1 16 BOOST BOOST – SW ... 6V SW 2 15 PVCC LTC1704EGN I 3 14 BG Input Voltage MAX LTC1704BEGN RUN/SS 4 13 PGND SW ... –1V to 6V COMP 5 12 PGOOD FB, REGFB, REGILM, FB 6 11 VCC RUN/SS, IMAX .. – 0.3V to (VCC + 0.3V) GN PART MARKING REGDR 7 10 REGILM Peak Output Current <10µs GND 8 9 REGFB 1704 TG, BG (Note 7) ... 5A GN PACKAGE 1704B Operating Temperature Range (Note 2) .. – 40°C to 85°C 16-LEAD PLASTIC SSOP Storage Temperature Range ... – 65°C to 150°C TJMAX = 125°C, θJA = 130°C/W Lead Temperature (Soldering, 10 sec).. 300°C Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VCC = PVCC = BOOST = 5V, unless otherwise specified. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VCC VCC Supply Voltage ● 3.15 5 5.5 V PVCC PVCC Supply Voltage (Note 4) ● 3.15 5 5.5 V BVCC BOOST Pin Voltage VBOOST – VSW (Note 4) ● 3.15 5 5.5 V IVCC VCC Supply Current Test Circuit ● 4.5 8 mA VRUN/SS = 0V, VREGILM = 0V ● 75 150 µA IPVCC PVCC Supply Current Test Circuit, No Load at Drivers ● 3 6 mA VRUN/SS = 0V (Notes 5, 6) ● 50 µA IBOOST BOOST Pin Current Test Circuit ● 2 6 mA VRUN/SS = 0V (Notes 5, 6) ● 50 µA VSHDN RUN/SS Shutdown Threshold VRUN/SS ↑ ● 0.2 0.5 V ISS RUN/SS Source Current VRUN/SS = 0V – 3 µA
Switcher Control Loop
VFB Feedback Voltage ● 0.788 0.800 0.812 V IFB Feedback Input Current ● ±1 µA dVFB Feedback Voltage Line Regulation VCC = 3.3V to 5.5V ● ±0.01 ±0.1 %/V Output Voltage Load Regulation (Note 7) ● – 0.2 – 0.1 % AFB Feedback Amplifier DC Gain ● 74 85 dB GBW Feedback Amplifier Gain Bandwidth Product f = 100kHz (Note 7) 20 MHz ICOMP Feedback Amplifier Output Sink/Source Current ● ±3 ±10 mA VPGOOD Negative Power Good Threshold ● –15 –10 – 6 % Positive Power Good Threshold ● 6 10 15 % IIMAX IMAX Source Current VIMAX = 0V ● –11.5 –10 – 8.5 µA 1704bfa 2
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
Supply Voltage ORDER PART TOP VIEW VCC, PVCC .. 6V NUMBER BOOST ... 12V TG 1 16 BOOST BOOST – SW ... 6V SW 2 15 PVCC LTC1704EGN I 3 14 BG Input Voltage MAX LTC1704BEGN RUN/SS 4 13 PGND SW ... –1V to 6V COMP 5 12 PGOOD FB, REGFB, REGILM, FB 6 11 VCC RUN/SS, IMAX .. – 0.3V to (VCC + 0.3V) GN PART MARKING REGDR 7 10 REGILM Peak Output Current <10µs GND 8 9 REGFB 1704 TG, BG (Note 7) ... 5A GN PACKAGE 1704B Operating Temperature Range (Note 2) .. – 40°C to 85°C 16-LEAD PLASTIC SSOP Storage Temperature Range ... – 65°C to 150°C TJMAX = 125°C, θJA = 130°C/W Lead Temperature (Soldering, 10 sec).. 300°C Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VCC = PVCC = BOOST = 5V, unless otherwise specified. (Note 3) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VCC VCC Supply Voltage ● 3.15 5 5.5 V PVCC PVCC Supply Voltage (Note 4) ● 3.15 5 5.5 V BVCC BOOST Pin Voltage VBOOST – VSW (Note 4) ● 3.15 5 5.5 V IVCC VCC Supply Current Test Circuit ● 4.5 8 mA VRUN/SS = 0V, VREGILM = 0V ● 75 150 µA IPVCC PVCC Supply Current Test Circuit, No Load at Drivers ● 3 6 mA VRUN/SS = 0V (Notes 5, 6) ● 50 µA IBOOST BOOST Pin Current Test Circuit ● 2 6 mA VRUN/SS = 0V (Notes 5, 6) ● 50 µA VSHDN RUN/SS Shutdown Threshold VRUN/SS ↑ ● 0.2 0.5 V ISS RUN/SS Source Current VRUN/SS = 0V – 3 µA
Switcher Control Loop
VFB Feedback Voltage ● 0.788 0.800 0.812 V IFB Feedback Input Current ● ±1 µA dVFB Feedback Voltage Line Regulation VCC = 3.3V to 5.5V ● ±0.01 ±0.1 %/V Output Voltage Load Regulation (Note 7) ● – 0.2 – 0.1 % AFB Feedback Amplifier DC Gain ● 74 85 dB GBW Feedback Amplifier Gain Bandwidth Product f = 100kHz (Note 7) 20 MHz ICOMP Feedback Amplifier Output Sink/Source Current ● ±3 ±10 mA VPGOOD Negative Power Good Threshold ● –15 –10 – 6 % Positive Power Good Threshold ● 6 10 15 % IIMAX IMAX Source Current VIMAX = 0V ● –11.5 –10 – 8.5 µA 1704bfa 2