MAX1715EEI Datasheet Download

Part No.:
MAX1715EEI
Download:
Download Datasheet
Description:
[Ultra-High Efficiency, Dual Step-Down Controller for Notebook Computers]
File Size:
307 K
Page:
28 Pages
Logo:
Manufacturer:
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
PCB Prototype
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Ultra-High Efficiency, Dual Step-Down
Controller for Notebook Computers
Pin Description (continued)
PIN
16
17
18
19
20
21
22
24
25
26
27
NAME
LX2
DH2
BST2
DL2
V
DD
V
CC
PGND
DL1
BST1
DH1
LX1
FUNCTION
External Inductor Connection for OUT2. Connect to the switched side of the inductor. LX2 serves as the
lower supply voltage rail for the DH2 high-side gate driver and is the positive input to the OUT2 current-limit
comparator.
High-Side Gate Driver Output for OUT2. Swings from LX2 to BST2.
Boost Flying Capacitor Connection for OUT2. Connect to an external capacitor and diode according to the
Standard Application Circuit (Figure 1). See
MOSFET Gate Drivers (DH_, DL_)
section.
Low-Side Gate-Driver Output for OUT2. DL2 swings from PGND to V
DD
.
Supply Input for the DL Gate Drivers. Connect to the system supply voltage, +4.5V to +5.5V. Bypass to
PGND with a minimum 4.7µF ceramic capacitor.
Analog-Supply Input. Connect to the system supply voltage, +4.5V to +5.5V, with a 20Ω series resistor.
Bypass to AGND with a 1µF ceramic capacitor.
Power Ground. Connect directly to the low-side MOSFETs’ sources. Serves as the negative input of the cur-
rent-sense amplifiers.
Low-Side Gate Driver Output for OUT1. DL1 swings PGND to V
DD
.
Boost Flying Capacitor Connection for OUT1. Connect to an external capacitor and diode according to the
Standard Application Circuit (Figure 1). See
MOSFET Gate Drivers (DH_, DL_)
section.
High-Side Gate Driver Output for OUT1. Swings from LX1 to BST1.
External Inductor Connection for OUT1. Connect to the switched side of the inductor. LX1 serves as the
lower supply voltage rail for the DH1 high-side gate driver.
MAX1715
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