MAX8649 Maxim Integrated Products, MAX8649 Datasheet - Page 27

• Manufacturer Part Number: MAX8649
• Description: 1.8A Step-Down Regulator
• Manufacturer: Maxim Integrated Products

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Table 9. I
This register controls of ramp-up/down function.
Address
Reset Value
Type
Special Features
B7 (MSB)
B0 (LSB)
BIT
B6
B5
B4
B3
B2
B1
1.8A Step-Down Regulator with Differential
2
C Register: RAMP
______________________________________________________________________________________
RAMP_DOWN
FORCE_OSC
FORCE_HYS
RAMP[2:0]
REGISTER NAME
NAME
—
—
Remote Sense in 2mm x 2mm WLP
Control the RAMP Timing
000 = 32mV/µs
001 = 16mV/µs
010 = 8mV/µs
011 = 4mV/µs
100 = 2mV/µs
101 = 1mV/µs
110 = 0.5mV/µs
111 = 0.25mV/µs
Only Valid When Converter is Operating in OPERATION_MODE 0
0 = Automatically change between power-save mode and PWM mode,
1 = Converter always operates in power-save mode regardless of load
Force Oscillator While Running in Hysteretic Mode
0 = Internal oscillator is disabled in power save when operating in
1 = Internal oscillator is enabled in power save even when operating in
Reserved for future use.
Active Ramp-Down Control for Power-Save Mode
0 = Active ramp disabled for power-save mode.
1 = During ramp-down, the error crossing detector is disabled allowing
Reserve for future use.
depending on load current.
current as long as OPERATION_MODE = 0. If OPERATION_MODE =
1, this setting is ignored.
hysteretic mode.
hysteretic mode.
negative current to flow thought the nMOS device.
DESCRIPTION
Reset upon V
RAMP
0x06h
0x01h
Read
DD
or IN1 UVLO
DEFAULT
VALUE
000
0
0
0
0
1
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