LTM8022EV#PBF Linear Technology, LTM8022EV#PBF Datasheet
LTM8022EV#PBF
Specifications of LTM8022EV#PBF
Available stocks
Related parts for LTM8022EV#PBF
LTM8022EV#PBF Summary of contents
Page 1
... The LTM8022 is RoHS compliant. L, LT, LTC, LTM, Linear Technology, Burst Mode and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. ® ...
Page 2
... Internal Operating Temperature..............–40°C to 125°C Solder Temperature ............................................... 250°C Storage Temperature ..............................–55°C to 125°C ORDER INFORMATION LEAD FREE FINISH PART MARKING* LTM8022EV#PBF LTM8022V LTM8022IV#PBF LTM8022V LTM8022MPV#PBF LTM8022MPV Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. ...
Page 3
ELECTRICAL CHARACTERISTICS erature range, otherwise specifi cations are at T unless otherwise specifi ed. (Note 2) SYMBOL PARAMETER V Input DC Voltage IN V Output DC Voltage OUT R Minimum Allowable R ADJ(MIN) ADJ I Continuous Output DC Current OUT(MAX) ...
Page 4
LTM8022 TYPICAL PERFORMANCE CHARACTERISTICS Effi ciency vs Load (8V ) OUT 95 12V IN 90 24V IN 85 36V 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 OUTPUT CURRENT (A) 8022 G01 Minimum Required Input ...
Page 5
TYPICAL PERFORMANCE CHARACTERISTICS Output Current vs Input Voltage (Output Short) 3200 3000 2800 2600 2400 2200 2000 1800 1600 INPUT VOLTAGE (V) 8022 G10 Minimum Required Input Voltage vs Output Load (5V 1200 1000 800 600 ...
Page 6
LTM8022 PIN FUNCTIONS V (Bank 1): The V pin supplies current to the LTM8022’ internal regulator and to the internal power switch. This pin must be locally bypassed with an external, low ESR capacitor of at least 2.2μF. ...
Page 7
BLOCK DIAGRAM V IN 0.1μF SHARE CURRENT MODE RUN/SS SYNC OPERATION The LTM8022 is a standalone non-isolated step-down switching DC/DC power supply. It can deliver output current with only bulk external input and output capacitors. ...
Page 8
LTM8022 APPLICATIONS INFORMATION Table 1. Recommended Component Values and Confi guration OUT IN 3.6V to 36V 0.82V 2.2μF 3.6V to 36V 1V 2.2μF 3.6V to 36V 1.2V 2.2μF 3.6V to 36V 1.5V 2.2μF 3.6V to ...
Page 9
APPLICATIONS INFORMATION For most applications, the design process is straight forward, summarized as follows Table 1, fi nd the row that has the desired input voltage range and output voltage. 2. Apply the recommended ...
Page 10
LTM8022 APPLICATIONS INFORMATION of operating frequencies, a haphazardly chosen one may result in undesirable operation under certain operating or fault conditions. A frequency that is too high can reduce effi ciency, generate excessive heat or even damage the LTM8022 if ...
Page 11
APPLICATIONS INFORMATION Load Sharing Two or more LTM8022’s may be paralleled to produce higher currents this, tie the OUT all the paralleled LTM8022’s together. Synchronize the LTM8022s to avoid beat frequencies if required. To ...
Page 12
LTM8022 APPLICATIONS INFORMATION PCB Layout Most of the headaches associated with PCB layout have been alleviated or even eliminated by the high level of integration of the LTM8022. The LTM8022 is nevertheless a switching power supply, and care must be ...
Page 13
... LTM8022. However, these capacitors can cause problems if the LTM8022 is plugged into a live supply (see Linear Technology Application Note 88 for a complete discussion). The low loss ceramic capacitor combined with stray inductance, in series with the power source, forms an underdamped tank circuit ...
Page 14
LTM8022 APPLICATIONS INFORMATION CLOSING SWITCH SIMULATES HOT PLUG + LOW IMPEDANCE ENERGIZED 24V SUPPLY + + Figure 5. A Well Chosen Input Network Prevents Input Voltage Overshoot and Ensures Reliable Operation When the LTM8022 is Connected to a Live Supply ...
Page 15
TYPICAL APPLICATIONS 0.82V Step-Down Converter 3.6V TO 15V LTM8022 2.2μF BIAS AUX RUN/SS SHARE R GND SYNC ADJ T 69.8k *RUNNING VOLTAGE RANGE. PLEASE REFER TO APPLICATIONS INFORMATION FOR START-UP DETAILS 3.8V TO 36V ...
Page 16
LTM8022 TYPICAL APPLICATIONS V IN 5.5V TO 36V OPTIONAL SYNC 16 Two LTM8022’s in Parallel, 3. OUT LTM8022 RUN/SS AUX SHARE BIAS PG 2.2μF RT GND SYNC ADJ 43.2k 78.7k IN OUT LTM8022 RUN/SS AUX SHARE ...
Page 17
PACKAGE DESCRIPTION Z aaa LGA Package 50-Lead (11.25mm × 9.00mm × 2.82mm) (Reference LTC DWG # 05-08-1804 Rev bbb 4.445 3.175 1.905 0.635 0.000 0.635 1.905 3.175 4.445 LTM8022 0.3175 0.635 0.9525 8022fd 17 ...
Page 18
LTM8022 PACKAGE DESCRIPTION Table 3. LTM8022 Pinout (Sorted by Pin Number) PIN SIGNAL DESCRIPTION ...
Page 19
... Added Note 5 Information f μrnished by Linear Technology Corporation is believed to be acc μrate and reliable. However, no responsibility is ass μmed for its μse. Linear Technology Corporation makes no representa- tion that the interconnection of its circ μits as described herein will not infringe on existing patent rights. LTM8022 ...
Page 20
... LGA IN OUT 3.6V ≤ V ≤ 36V, 0.8V ≤ V ≤ 10V, 11.25mm × 9mm × 2.82mm LGA, IN OUT Pin Compatible with LTM8022 www.linear.com ● V OUT 3.3V 1A 22μF ≤ 28V IN LT 0810 REV D • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2008 8022fd ...