Datasheet ADP1853 (Analog Devices) - 10
| Hersteller | Analog Devices |
| Beschreibung | Synchronous, Step-Down DC-to-DC Controller with Voltage Tracking and Synchronization |
| Seiten / Seite | 28 / 10 — ADP1853. Data Sheet. TYPICAL PERFORMANCE CHARACTERISTICS. 100. FFI. FFIC. … |
| Revision | A |
| Dateiformat / Größe | PDF / 1.2 Mb |
| Dokumentensprache | Englisch |
ADP1853. Data Sheet. TYPICAL PERFORMANCE CHARACTERISTICS. 100. FFI. FFIC. PULSE SKIP. FORCED PWM. 0.1. LOAD (A). LOAD. CURRENT. VOUT_AC
Modelllinie für dieses Datenblatt
Textversion des Dokuments
link to page 26 link to page 25
ADP1853 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 100 100 90 90 80 80 70 70 ) ) % % ( 60 ( 60 Y Y C C N 50 N 50 IE IE C 40 FFI 40 FFIC E E 30 30 20 20 10 PULSE SKIP 10 PULSE SKIP FORCED PWM FORCED PWM 0 0
5
0.1 1 10 100
004
0.1 1 10 100
00 94-
LOAD (A) LOAD (A)
594- 105 10 Figure 4. Efficiency Plot Figure 7. Efficiency Plot 12 VIN to 3.3 VOUT, 300 kHz, see Figure 36 for Circuit 15 VIN to 5 VOUT, 600 kHz, see Figure 35 for Circuit
LOAD LOAD CURRENT CURRENT 4 4 2 VOUT_AC VOUT_AC 2
7
CH2 200mV B
-006 00
W M 100µs 5.0MS/s A CH4 14.2A CH2 200mV BW M 100µs 5.0MS/s A CH4 14.2A
94
CH4 10A Ω B
594-
W 200ns/pt CH4 10A Ω BW 200ns/pt
105 10 Figure 5. 10 A to 20 A Load Step, Figure 8. 10 A to 20 A Load Step, 12 VIN to 3.3 VOUT, 300 kHz, Current Mode 12 VIN to 3.3 VOUT, 300 kHz, Voltage Mode
VIN VIN 1 1 VOUT_AC VOUT_AC 2 2
8 9
CH1 5V B
00 00
W M 100µs 250MS/s A CH1 12.6V
4-
CH1 5V BW M 100µs 250MS/s A CH1 12.6V
4-
CH2 100mV B
59 59
W 4ns/pt B 4ns/pt
10
CH2 100mV W
10 Figure 6. 9 V to 15 V Line Step, Figure 9. 9 V to 15 V Line Step, 3.3 VOUT, 15 A Load, Current Mode 3.3 VOUT, 15 A Load, Voltage Mode Rev. A | Page 10 of 28 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION SIMPLIFIED BLOCK DIAGRAM PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CONTROL ARCHITECTURE OSCILLATOR FREQUENCY SYNCHRONIZATION PWM OR PULSE SKIP MODE OF OPERATION CLKOUT SIGNAL SYNCHRONOUS RECTIFIER AND DEAD TIME INPUT UNDERVOLTAGE LOCKOUT INTERNAL LINEAR REGULATOR OVERVOLAGE PROTECTION POWER GOOD SHORT-CIRCUIT AND CURRENT-LIMIT PROTECTION ENABLE/DISABLE CONTROL THERMAL OVERLOAD PROTECTION INTERLEAVED DUAL-PHASE OPERATION APPLICATIONS INFORMATION ADISIMPOWER DESIGN TOOL SETTING THE OUTPUT VOLTAGE SOFT START SETTING THE CURRENT LIMIT ACCURATE CURRENT-LIMIT SENSING INPUT CAPACITOR SELECTION VIN PIN FILTER BOOST CAPACITOR SELECTION INDUCTOR SELECTION OUTPUT CAPACITOR SELECTION MOSFET SELECTION LOOP COMPENSATION—VOLTAGE MODE Type III Compensation LOOP COMPENSATION—CURRENT MODE Setting the Slope Compensation Setting the Current Sense Gain Type II Compensation SWITCHING NOISE AND OVERSHOOT REDUCTION VOLTAGE TRACKING Coincident Tracking Ratiometric Tracking PCB LAYOUT GUIDLINES TYPICAL OPERATING CIRCUITS OUTLINE DIMENSIONS ORDERING GUIDE
ADP1853 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 100 100 90 90 80 80 70 70 ) ) % % ( 60 ( 60 Y Y C C N 50 N 50 IE IE C 40 FFI 40 FFIC E E 30 30 20 20 10 PULSE SKIP 10 PULSE SKIP FORCED PWM FORCED PWM 0 0
5
0.1 1 10 100
004
0.1 1 10 100
00 94-
LOAD (A) LOAD (A)
594- 105 10 Figure 4. Efficiency Plot Figure 7. Efficiency Plot 12 VIN to 3.3 VOUT, 300 kHz, see Figure 36 for Circuit 15 VIN to 5 VOUT, 600 kHz, see Figure 35 for Circuit
LOAD LOAD CURRENT CURRENT 4 4 2 VOUT_AC VOUT_AC 2
7
CH2 200mV B
-006 00
W M 100µs 5.0MS/s A CH4 14.2A CH2 200mV BW M 100µs 5.0MS/s A CH4 14.2A
94
CH4 10A Ω B
594-
W 200ns/pt CH4 10A Ω BW 200ns/pt
105 10 Figure 5. 10 A to 20 A Load Step, Figure 8. 10 A to 20 A Load Step, 12 VIN to 3.3 VOUT, 300 kHz, Current Mode 12 VIN to 3.3 VOUT, 300 kHz, Voltage Mode
VIN VIN 1 1 VOUT_AC VOUT_AC 2 2
8 9
CH1 5V B
00 00
W M 100µs 250MS/s A CH1 12.6V
4-
CH1 5V BW M 100µs 250MS/s A CH1 12.6V
4-
CH2 100mV B
59 59
W 4ns/pt B 4ns/pt
10
CH2 100mV W
10 Figure 6. 9 V to 15 V Line Step, Figure 9. 9 V to 15 V Line Step, 3.3 VOUT, 15 A Load, Current Mode 3.3 VOUT, 15 A Load, Voltage Mode Rev. A | Page 10 of 28 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION SIMPLIFIED BLOCK DIAGRAM PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CONTROL ARCHITECTURE OSCILLATOR FREQUENCY SYNCHRONIZATION PWM OR PULSE SKIP MODE OF OPERATION CLKOUT SIGNAL SYNCHRONOUS RECTIFIER AND DEAD TIME INPUT UNDERVOLTAGE LOCKOUT INTERNAL LINEAR REGULATOR OVERVOLAGE PROTECTION POWER GOOD SHORT-CIRCUIT AND CURRENT-LIMIT PROTECTION ENABLE/DISABLE CONTROL THERMAL OVERLOAD PROTECTION INTERLEAVED DUAL-PHASE OPERATION APPLICATIONS INFORMATION ADISIMPOWER DESIGN TOOL SETTING THE OUTPUT VOLTAGE SOFT START SETTING THE CURRENT LIMIT ACCURATE CURRENT-LIMIT SENSING INPUT CAPACITOR SELECTION VIN PIN FILTER BOOST CAPACITOR SELECTION INDUCTOR SELECTION OUTPUT CAPACITOR SELECTION MOSFET SELECTION LOOP COMPENSATION—VOLTAGE MODE Type III Compensation LOOP COMPENSATION—CURRENT MODE Setting the Slope Compensation Setting the Current Sense Gain Type II Compensation SWITCHING NOISE AND OVERSHOOT REDUCTION VOLTAGE TRACKING Coincident Tracking Ratiometric Tracking PCB LAYOUT GUIDLINES TYPICAL OPERATING CIRCUITS OUTLINE DIMENSIONS ORDERING GUIDE