Datasheet LT1573 (Analog Devices) - 2

LT1573
W W W U U W U ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1)
Input Pin Voltage (V ORDER PART IN to GND) ... 10V Drive Pin Voltage (V NUMBER DRIVE to GND) .. 10V Output Pin Voltage (V TOP VIEW OUT to GND) .. 10V LT1573CS8 Shutdown Pin Voltage (V FB 1 8 COMP SHDN to GND) .. 10V LT1573CS8-2.5 Operating Junction Temperature Range LATCH 2 7 VOUT LT1573CS8-2.8 LT1573C ... 0°C to 125°C SHDN 3 6 VIN LT1573CS8-3.3 LT1573I .. –40°C to 125°C GND 4 5 DRIVE LT1573IS8 Storage Temperature Range .. – 65°C to 150°C S8 PACKAGE 8-LEAD PLASTIC SO S8 PART MARKING Lead Temperature (Soldering, 10 sec.).. 300°C TJMAX = 125°C, θJA = 85°C/ W 1573 157333 157325 1573I 157328 Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS The
●
denotes specifications that apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN = 5V, VDRIVE = 3V, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS DC Characteristics
LT1573 Reference Voltage (Adjustable)(Note 2) IDRIVE = 20mA, TJ = 25°C 1.252 1.265 1.278 V 5mA < IDRIVE < 250mA, 3V < VIN < 7V, ● 1.225 1.265 1.305 V 1.5V < VDRIVE < 7V LT1573-3.3 Output Voltage (Note 2) IDRIVE = 20mA. TJ = 25°C 3.267 3.3 3.333 V 5mA < IDRIVE < 250mA, 3.5V < VIN < 7V, ● 3.234 3.3 3.366 V 1.5V < VDRIVE < 7V LT1573-2.8 Output Voltage (Note 2) IDRIVE = 20mA, TJ = 25°C 2.772 2.8 2.828 V 5mA < IDRIVE < 250mA, 3V < VIN < 7V, ● 2.744 2.8 2.856 V 1.5V < VDRIVE < 7V LT1573-2.5 Output Voltage (Note 2) IDRIVE = 20mA, TJ = 25°C 2.475 2.5 2.525 V 5mA < IDRIVE < 250mA, 3V < VIN < 7V, ● 2.450 2.5 2.550 V 1.5V < VDRIVE < 7V Line Regulation LT1573 (VFB) IDRIVE = 20mA, 3V < VIN < 7V ● 0.17 2 mV LT1573-3.3 (VOUT) IDRIVE = 20mA, 3.5V < VIN < 7V ● 0.34 5 mV LT1573-2.8 (VOUT) IDRIVE = 20mA, 3V < VIN < 7V ● 0.34 4 mV LT1573-2.5 (VOUT) IDRIVE = 20mA, 3V < VIN < 7V ● 0.25 4 mV Load Regulation LT1573 (VFB) ∆IDRIVE = 20mA to 250mA ● 7 30 mV LT1573-3.3 (VOUT) ∆IDRIVE = 20mA to 250mA ● 18 40 mV LT1573-2.8 (VOUT) ∆IDRIVE = 20mA to 250mA ● 15 34 mV LT1573-2.5 (VOUT) ∆IDRIVE = 20mA to 250mA ● 13 30 mV FB Pin Bias Current (Adjustable Only) VFB = 1.265V ● 0.8 5 µA DRIVE Pin Current VFB = 1.35V, VDRIVE = 7V ● 2 mA VFB = 1.15V, VDRIVE = 1.5V ● 250 440 mA DRIVE Pin Saturation Voltage IDRIVE = 20mA, VFB = 1.15V ● 0.12 0.3 V IDRIVE = 250mA, VFB = 1.15V ● 0.73 1.4 V SHDN Pin Threshold Voltage ● 1.0 1.33 1.6 V SHDN Pin Current VSHDN = 5V 200 µA sn1573 1573fas 2