The U.N. has warned of possible genocide in South Sudan.
Western countries should follow the example of Uganda, an aid agency has said.
The Security Council has failed to impose an arms embargo on the conflict-hit state.
Political change, separatist insurgencies and a possible genocide project a tough year for the continent.
"If we fail to act, South Sudan will be on a trajectory toward mass atrocities," Ban told the Security Council.
Most of the money will go to address crises in Syria, Yemen, Iraq and South Sudan.
A U.N. human rights commission said that ethnic cleansing was already underway in South Sudan.
Russia said U.N. mission in South Sudan is "in ruins" after damning inquiry on peacekeepers.
Kenyan head of the U.N. mission in South Sudan was sacked Monday.
South Sudan's crisis is getting worse, and international bodies are standing idly by.
European and Middle Eastern firms use African middlemen to sell arms to the war-torn state.
Peace will elude South Sudan as long as its women's rights and safety continue to be ignored and abused.
Report accused top officials, including Salva Kiir and Riek Machar, of benefiting from the conflict.
Top South Sudanese officials have accrued fortunes during the country's civil war.
Machar fled South Sudan after fighting in the capital Juba in July.
The deposed vice-president fled South Sudan earlier in August.
Kerry met with East African ministers on Monday to discuss possible solutions to the conflict.
Some 16,000 children have been recruited to fight in South Sudan since December 2013.
The former vice president has left for a safe country in east Africa, according to a spokesman.
The rampage in Juba did not see UN troops, stationed only a mile away, intervene.
The government wants an independent African force to calm tensions in the capital Juba.
Rebel leader Riek Machar has still not returned to Juba after clashes in July.