Electronic Components Datasheet Search |
|
MAX1962EEP Datasheet(PDF) 9 Page - Maxim Integrated Products |
|
MAX1962EEP Datasheet(HTML) 9 Page - Maxim Integrated Products |
9 / 29 page 2.35V to 5.5V, 0.5% Accurate, 1MHz PWM Step-Down Controllers with Voltage Margining _______________________________________________________________________________________ 9 Pin Description PIN MAX1960 MAX1961 MAX1962 NAME FUNCTION 1 1 1 CLKOUT Clock Output. Connect to FSET/SYNC of a second converter to operate 180° out-of- phase. CLKOUT swings from VCC to GND. CLKOUT is low in shutdown (see the Operating Frequency and Synchronization section). 2 2 2 FSET/SYNC Frequency Set and Synchronization. Connect to GND for 500kHz operation, connect to VCC for 1MHz operation, or drive with clock signal to synchronize (between 450kHz and 1200kHz). 33 — ILIM Current Limit. Connect a resistor from ILIM to GND to set the current-sense threshold voltage. Connect ILIM to VDD to select the default threshold of 75mV. —— 3EN Enable. Drive high for normal operation. Drive low or connect to GND for shutdown mode. — 4 4 SEL Preset Output Voltage Select. Allows the output to be set to one of four preset voltages (1.5V, 1.8V, 2.5V, and 3.3V). For the MAX1962, FB must be connected to VDD if SEL is to be used (see the Setting the Output Voltage section). 4 —— N.C. No Connection. Not internally connected. — 8 5 OUT Output. Connect to the output. Used to sense the output voltage for internal feedback and current sense. 55 — CTL1 66 — CTL2 Control Pins. Controls voltage margining and shutdown. Connect both CTL1 and CTL2 high for normal operation. Connect both CTL1 and CTL2 low for shutdown. Connect CTL1 high and CTL2 low for +4% voltage margining. Connect CTL1 low and CTL2 high for -4% voltage margining. If voltage margining is not to be used, connect CTL1 and CTL2 together and use to enable/shutdown the device. —— 6CS Current-Sense Input. Connect to the junction of the current-sense resistor and the inductor. The MAX1962 current-sense threshold is 50mV measured from CS to OUT. 777 AVDD Filtered Supply from VDD. Connect a 1µF bypass capacitor. AVDD is forced to VCC in shutdown. Do not apply an external load to AVDD. 8 — 8FB Feedback Input. The feedback threshold is 0.8V. Connect to the center of a resistive voltage-divider from the output to GND to set the output voltage to 0.8V or greater. On the MAX1962, connect FB to VDD to select preset output voltages (see SEL). 9 9 9 COMP Compensation Pin. COMP is forced to GND in shutdown, UVLO, or thermal fault. 10 10 10 REF Reference Output. VREF = 1.28V. Bypass with a 0.22µF capacitor to GND. 11 11 11 GND Analog Ground. Connect to the PC board analog ground plane. Connect the PC board analog ground plane and power ground planes with a single connection. 12 12 12 VDD Charge-Pump Output. Provides regulated 5V to power the IC and gate drivers. Bypass with a 4.7µF ceramic capacitor for operating frequencies between 450kHz and 950kHz. Bypass with a 2.2µF ceramic capacitor for 1MHz operation. VDD is internally forced to VCC in shutdown. Do not apply an external load to VDD. 13 13 13 DL Low-Side MOSFET Synchronous Rectifier Gate-Driver Output. DL is high in shutdown. 14 14 14 PGND Power Ground. Connect to the PC board power ground plane. |
Similar Part No. - MAX1962EEP |
|
Similar Description - MAX1962EEP |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |